Leidsid 33 sarnast õppematerjali, mis on seotud failiga "Side konspekt 2020 / eksami kordamisküsimused". Need materjalid aitavad sul teemat sügavamalt mõista.
signaal, antenn, edasta, signal, kanal, bitt, ping, ides, channel, inter, send, müra, power, base, digi, modulatsioon, able, work, link, signals, station, network, vastuvõtja, gnss, edastus, bitti, sisend, amplituud, spekter, near, term, väljund, same, signaalid, user, bait, kaadri, connection, between, rate, call, mõõtühik, reference, loga, sidesLCP Frame types detected -> remove `0' prior to input into SIPO normally FCS data (prior EOF) subjected to same bit obtain bit synchronization. 3. scheme: bit-encoding violations ( also used w/ SAPs are 7b: shortage -> SNAP above LLC stuffing LANs) · 1.5 bit manchester (3 signal pulses) -> no transition in 1st bit · no signal Typical network protocol evolution: · extend one protocol by O Asynchronous Transmission Independent transmit & receive clocks. receiver explicitly transition -> illegal manchester code J: signal level remains same as previous for tacking on parts (in this caseanother protocol)
1. Üldine kommunikatsioonimudel Sõnumi allikas->saatja(allikast info)->edastussüsteem->vastuvõtja->sihtjaam [üheks näiteks võiks olla: Arvuti->modem->ÜKTV->modem->arvuti] sisendinfoAllikas(sisendandmed g(t))->edastaja e. transmitter(edasi saadetud signaal s(t))->edastussüsteem(saadud signaal r(t))->vastuvõtja(väljund andmed g'(t))- >lõppunkti saaväljund informatsioon m' 2. Kommunikatsioonisüsteemi ülesanne • mõistlik kasutamine/koormamine • liidestus(kokku ühendamine. Ntx: võrk+võrk, arvuti+võrk) • Signaalide genereerimine(edastamine)(signaalide ühest süsteemist teise üleviimine) • Sünkroniseerimine [andmeedastuse algust(saatja) ja lõppu(vastuvõtjat)] • Andmeside haldamine
A micro- processor-controlled machining tool has to position the cutting bit in the right place to cut a piece of steel. This book provides coverage of practical control applications and gives some opamp examples; however, its focus is neither control theory nor opamp theory. Primarily, its coverage includes measurement and control of analog quantities in embedded systems that are required to interface with the real world. Whether measuring a signal from a satellite or the temperature of a toaster, embedded systems must measure, analyze, and control analog values. That’s what this book is about—connecting analog input and output devices to microprocessors for embedded applications. xi System Design 1 Most embedded microprocessor designs involve processing some kind of
alternating current into direct voltage or direct current. It is also applied in detectors, which find the signals in the noisy operation conditions. The third application is in switching circuits because an ideal rectifier acts like a perfect conductor when forward biased and lik a perfect insulator when reverse biased. 7) A power diode is more complicated in structure and operational characteristics than the small signal diode. The forward bias characteristic of the power diode is approximately linear, which means that the voltage drop is proportional to the omic resistance and to the current. The rated currents of power diodes are thousands of amperes and the area of the pn junction may be tens of square centimeters. In the case of power diode, the additional n- layer exists between these two layers, which is termed as a drift region. This layer can be quitewide for the diode. The wide lightly doped
-5- the interactive voice menu (IVR), the centre of processing of calls - statement of calls to turn and their distribution on agents using various algorithms, record CDR and other functions. On the one hand, the server is connected with telephone lines and can incorporate to any phone of the world. On the other hand, the server is connected with the Internet and can contact any computer in the world. The server accepts a standard telephone signal, digitizes it (if it initially not digital), considerably compresses, breaks into packets and sends through the Internet to destination point with use of the protocol TCP/IP. For the packets coming from the Network on a telephone server and going out in a telephone line, operation goes upside-down. Both making operations (a signal input in a telephone system and its exit from a telephone system) occur practically simultaneously that allows to provide fullduplex conversation.
Digital Signal Processing Summary and Vocabulary Guide to Digital Signal Processing by Steven W. Smith. Read up to page 10, preface included. https://users.dimi.uniud.it/~antonio.dangelo/MMS/materials/Guide_to_Digital_ Signal_Process.pdf Digital Signal Processing (DSP) is a powerful technology that will shape science in the twenty-first century. Changes have already been made in various fields of study: communications, medical imaging, and high fidelity music reproduction, to name just a few. Each of these disciplines has developed a deep DSP technology, with its own algorithms and specialized techniques. This combination of breadth and depth makes it impossible for any one individual to master all of the DSP technology that has been developed
kasutajale midagi edastatakse või kuidas arvutis kodeeritud on. (+krüpteering ja kompressioon). Iga kiht suhtleb teise arvuti sama kihiga. Kihtide liidesed on standartsed. TCP/IP mudel 2 TCP/IP mudel on praktiline mudel. Füüsiline ja kanalikiht on kokku pandud võrguliideseks ning sessiooni, esitlus- ja rakenduskiht on kokku pandud rakenduskihiks. 2. Informatsiooni mõõtühikud: bitt ja bait, nende detsimaalliited. 1 bait = 8 bitti (1 B = 8 b). Bitt on väiksem mõõtühik, kas 1 või 0. Ühte baiti mahub täpselt üks täht. Seega 1 baidiga saab teha 256 nö erinevat mustrit. Info: Ik = loga(1/Pk) a = 2 [bit] k = 1000, kbit = 1000 bit ki = 1024, kibit = 1024 bit 3. Signaali mõiste ja selle erinevad tüübid: audio, pilt, video, tekst, digitaalsed andmed. Pidevad ja diskreetsed signaalid, aja ja väärtuse järgi
! Caution Failure to abide by the following precautions could lead to faulty operation of the PC or the system, or could damage the PC or PC Units. Always heed these pre- cautions. • Fail-safe measures must be taken by the customer to ensure safety in the event of incorrect, missing, or abnormal signals caused by broken signal lines, momentary power interruptions, or other causes. • Construct a control circuit so that power supply for the I/O circuits does not come ON before power supply for the Unit. If power supply for the I/O circuits comes ON before power supply for the Unit, normal operation may be tempo- rarily interrupted.
moodustab kanali n- v. p-juhtivusega pooljuhtplaat (joonisel n-juhtivusega), mille otstest lähtuvad elektroodid läte (Source) ja neel (Drain). Pooljuhtplaadi ühel küljel on moodustatud vastupidise juhtivusega ala, mida nimetatakse paisuks. Kanali ja paisu vahel kujuneb laengukandjaist vaene ja seetõttu suure takistusega pn-siire. Siirde laius kasvab teatavasti koos sellele rakendatava vastupingega. Et väljatransistoris on pais legeeritud palju tugevamini kui kanal ja et kanal on väga õhuke (mõni kuni mõnikümmend mikormeetrit), siis p-tüüpi paisule kanali suhtes negatiivse pinge andmisel laieneb siire kanalisse. järelikult kanali voolu läbilaskev ristlõige väheneb. Kui rakendada n-kalali korral neelule positiivne pinge, saabki negatiivse paisupinge muutmisega tüürida kanalit läbivate elektronide arvu, seega neeluvoolu. Siirde laius kasvab neelus suunas, sest kanalit läbiva voolu tekitatud pingelang tõstab neelupoolses kanaliosas siirde vastupinget.
quantification of different sequence variants of the internal transcribed spacers of the freshwater sponge Ephydatia fluviatilis as an example. In addition to using conventional substitution analysis, we have developed a mathematical method, the proportion model method, to quantify the relative amounts of allelic variants of different length using data from direct sequencing of the heterogeneous amplicon. This method is based on determining the expected signal intensity values (corresponding to peak heights from the sequencing electropherogram) by sequencing clones from the same or highly similar amplicon and comparing hypothesized combinations against the values obtained by direct sequencing of the heterogeneous amplicon. This method allowed to differentiate between all specimens analysed.
· Realigment (motion correction ) · Global Normalization · Coregistration · Motion correction · Spatial Normalization · Slice Timing · Spatial Smoothing · Spatial Normalization · Spatial Smoothing · Temporal filtering Remove first 10 time points · [Eng] The first few volumes of the functional images are often discarded for signal equilibrium and to allow the participants' adaptation to the scanning noise. · [Est] Paar esimest aja punkte funktsionaalssetest pilte hulgast kustutakse ära, et ühtlustada signaali tasakaalu ja eemaldada suuri kõikumisi. See aeg võimaldab osalejatel kohaneda skaneerimise müraga. Slice Timing · Interbased order. Esimesed kihid 1,3,5..., pärast lähevad 2,4,6,... · Sõltub kihtide järjekorrast, mis oli valitud enne skaneerimist.
Motherboard - the principle printed circuit board assembly in a computer; includes core logic (chipset), interface sockets and/or slots, and input/output (I/O) ports. Printed circuit board (PCB) - a thin, laminated sheet composed of a series of epoxy resin and copper layers and etched electronic circuits (signal, ground and power) Chipset (or core logic) - two or more integrated circuits which control the interfaces between the system processor, RAM, I/O devises, and adapter cards. Processor slot/socket - the slot or socket used to mount the system processor on the motherboard AGP - Accelerated Graphics Port - a high speed interface for video cards; runs at 1X (66MHz), 2X (133MHz), or 4X (266MHz). PCI - Peripheral Component Interconnect - a high speed interface for video cards, sound cards, network interface cards, and modems; runs at 33MHz. ISA - Industry Standard Architecture - a relatively low speed interface primarily used for sound cards and modems; runs at approx. 8MHz. RAM - Ran
information from them. This broader field has grown to include many new areas; it encompasses, for example, means to deprive the enemy of information obtainable by studying the traffic patterns of radio messages, and means of obtaining information from radar emissions. An outline of this larger field, with its opposing parts placed opposite one another, and with a few of the methods of each part given in parentheses, would be: SIGNAL SECURITY SIGNAL INTELLIGENCE Communication Security Communication Intelligence Steganography (invisible inks, open Interception and Direction-Finding codes, messages in hollow heels) and Transmission Security (spurt radio systems) Traffic Security (call-sign changes, Traffic Analysis (direction-finding dummy messages, radio silence) fixes, message-flow studies, radio- fingerprinting)
combined area of 18.7 million sq km and a population of 140 million. The vast majority of the population live in the six most populous realms: the UK, Canada, Australia, Papua New Guinea, New Zealand, and Jamaica. A Commonwealth realm is a country which shares Queen Elizabeth II as monarch. 8. Crown dependency- consist of the Isle of Man in the Irish Sea and thee Bailiwicks of Jersey and Guernsey in the English Channel. Although internationally, the dependencies are recognised as "territories for which the United Kingdom is responsible", the relationship between the Crown dependencies and the UK is "one of mutual respect and support, i.e. a partnership". In 2007-2008, each Crown Dependency and the UK signed agreements that established frameworks for the development of the international identity of each Crown Dependency. 9
tutvu lausearvutuse keskkonnaga: http://logik.phl.univie.ac.at/~chris/gateway/formular-uk-zentral.html Millistel muutuja väärtustel on lause (Av(B&A))v(-A&(Cv(B&-C))) väär? Panna tuleb results only, 0 on väär 1 on õige Tutvu ajalooga saidis kuni II maailmasõda: http://www.maxmon.com/history.htm Loe läbi jutt ja proovi andmetega mängida: http://math.hws.edu/TMCM/java/DataReps/index.html Kahend süsteemi arvu(101101001) ->kümnend süsteemiks. Nr sisse ja bianarile punkt, ja vaatan base ten integeri kümnendarvudest annab Ecki appletis juuresoleva graafilise kujutise, teen kujundi ja vaatan base integeri mis vastab kahendsüsteemi arvule 1110001 ASCII tabelis? Nr sisse ja punkt bianari, vaatan ...teksti Kümnendsüsteemi arv 33 on kahendsüsteemis? 33 kirjutan ja Base-ten integer, vaatan bianary Loe läbi jutud Atbashi ja Caesari šifri (Caesar cipher) kohta: http://www.wikipedia.org 2 Tutvu ajalooga kuni 1970ndad: http://www.islandnet.com/~kpolsson/comphist/ 47-68 ingli
Three inputs NAND chip and scheme Scheme used four of the PROM chips and four three-input NAND gates (CS = chip select pins) Scheme to coonect 12 input pins MP address to four PROM 10 address pins == MEMR (Merory Read) 11. You are designing a multi-user interface that stores user preference data on external memory. You decided to use a PIC18F45K20 microcontroller and 24C02C EEPROM memory. Your microcontroller needs to generate a block wave that will act as a clock signal to synchronize data transfer to and from the memory. a) Choose a suitable clock frequency, based on the capabilities of the EEPROM module and the PIC. b) Assume the clock frequency of the PIC is 16 MHz and one instruction cycle lasts 4 clock periods. Further assume that one loop of your algorithm requires 4 instruction cycles. Determine the total delay time for completing a command cycle sent to EEPROM, assuming the clock in EEPROM is 100 kHz. == 11. a) Choose 0 – 400 kHz
materials into intermediate and finished products, and the distribution of these finished products to customers. Supply chains exist in both service and manufacturing organizations, although the complexity of the chain may vary greatly from industry to industry and firm to firm. Supply chain management is typically viewed to lie between fully vertically integrated firms, where the entire material flow is owned by a single firm and those where each channel member operates independently. Therefore coordination between the various players in the chain is key in its effective management. Cooper and Ellram [1993] compare supply chain management to a well-balanced and well-practiced relay team. Such a team is more competitive when each player knows how to be positioned for the hand-off. The relationships are the strongest between players who directly pass the baton (stick), but the entire team needs to make a coordinated effort to win the race.
Question 1 (in wiki and in terminologies) 1. SNR is a calculated value that represents the ratio of root- mean-square (rms ) signal to rms noise. 2. SINAD stands for Signal-to-noise and distortion ratio. It is a measure of the quality of a signal from a communications device, often defined as: where is the average power of the signal, noise and distortion components. SINAD is usually expressed in dB. For examples to calculate the ratio of 1 kW (one kilowatt, or 1000 watts) to 1 W in decibels, use the formula 3. ENOB is the effective number-of-bits related to SINAD and the quality of a digitized signal. The 6.02 term in the divisor converts decibels (a log10) to bits (a log2) The 1.76 term comes from quantization error in an ideal ADC
Voyage Planning Voyage Planning The key elements of the Voyage Plan are: Appraising all relevant information Planning the intended voyage Executing the plan taking account of prevailing conditions Monitoring the vessel’s progress against the plan continuously Planning The detailed voyage or passage plan should include the following factors: 1) the plotting of the intended route or track of the voyage or passage on appropriate scale charts: the true direction of the planned route or track should be indicated, as well as all areas of danger, existing ships' routeing and reporting systems, vessel traffic services, and any areas where marine environmental protection considerations apply; 2) the main elements to ensure safety of life at sea, safety and efficiency of navigation, and protection of the marine environment during the intended voyage or passage; such elements should include, but not be limited
Week 4 homework. Question 1: 1. SNR – Ratio of root mean square signal to root mean square. 2. SINAD – Ratio of the RMS signal amplitude to the mean of value of the root sum square. 3. ENOB – The effective number of bits and relates to SINAD. 4. THD – Ratio of the rms value of the fundamental signal to the mean value of RSS of its harmonics. 5. SFDR – Ratio of the RMS value of the signal to the RMS value of the worst spurious signal. 6. Channels – multiple analog signal inputs to the ADC that can be individually selected or selected through a multiplexor. 7. Linearity – Describes how an ADC conveter follows a linear function. 8. Operating temperature – A temperature at which the ADC functions optimally, usually given by the manufacturer. 9. Power dissipation – The proportion of power dissipated (through heat) when the ADC is working. Question 2: An 8 bit ADC has a reference voltage of 5V. What is the digital output code word for an input of 1.2V
SISUKORD ENERGY STORY................................................................................................................4 USES OF ENERGY............................................................................................................. 4 2.1 Uses of energy in homes...............................................................................................5 2.2 Types of energy used in homes.................................................................................... 6 2.3 Energy use in different types of homes........................................................................ 6 2.4 Commercial Energy Use...............................................................................................9 2.5 Industrial and Manufacturing Energy Use..................................................................11 2.6 Transportation Energy Use.........................................................................................12 RENE
1. (a) (i) gene length of DNA; codes for a (specific), polypeptide / protein / RNA; max 1 allele alternative form of a gene; found at a, locus / particular position on, a chromosome; max 1 (ii) assume allele refers to coat colour allele (coat colour) gene / alleles, only on X chromosome; A no (coat colour), gene / allele, on Y chromosome male cats, XY / only have one X chromosome; males have only one (coat colour) allele / cannot have two (coat colour) alleles; need black and orange alleles for tortoiseshell colour; 2 r r w w (b) parental genotypes C C × C C ; r w gametes C , C ; F1 genotypes and pheno
Question 1 Define the following ADC terms: 1. SNR – (Signal to Noise Ratio) SNR is a calculated value that represents the ratio of RMS signal to RMS noise. 2. SINAD - (signal-to-noise-and-distortion ratio) Ratio of the RMS signal amplitude to the mean value of the root-sum-square (RSS) 3. ENOB – (effective number of bits) The effective number-of-bits and relates to SINAD 4. THD - (total harmonic distortion) Ratio of the rms value of the fundamental signal to the mean value of the RSS of its harmonics. 5. SFDR - (spurious free dynamic range) Ratio of the RMS value of the signal to the RMS value of the worst spurious signal. 6
1. OBJECT-ORIENTED PARADIGM The Model •The model defines an abstract view to the problem. This implies that the model focuses only on problem related stuff and that you try to define properties of the problem. These properties include: 1 •the data which are affected and 2 •the operations which are identified by the problem. Object-oriented Paradigm •Everything is an object •A program is a bunch of objects telling each other what to do by sending messages •Each object has its own memory made up of other objects •Every object has a type •All objects of a particular type can receive the same messages Domain Model •A domain model does not represent the entire domain as it is in the real world. It includes only the concepts that are needed to support the application. Object •Is a partitioned area of memory where object code is stored •The area of memory is protected •This code can function relatively independently of other objects •Can be used b
crosswalk button, StopLight Sequen insures that the stoplights are lighting up in the right sequence. Displays is responsible for the things that need to be shown on the display. Tallinn University of Technology March 2013 MODE 1 This block describes the behavior of the Democratic manual mode. It is connected to the sensors near the stoplights, and is only activated once the manual signal is on. MODE 2 Mode 2 is responsible for the Main Street mode. After one of the secondary street's sensors have been activated, it will be sending a signal for a fixed amount of time, and then resetting it. Tallinn University of Technology March 2013 MODE 3 This small block is responsible for the automatic mode
globe. Words and body language If a child is to believe the parents who say that it's healthy to go to bed early, it usually doesn't make much sense unless the parents express it with both words and body language. Otherwise, the child may get the impression that it is only good for the parents that the child is put to bed early. It is important to remember that, although body language does give you an additional channel of communication, which sometimes contradicts the spoken word, it should be interpreted with care. For one thing, body language can be affected by particular habits of the speaker. Apart from individual differences, there are also differences between geographical regions, as well as between cultural groups. For example, in Greece, you nod your head for 'no', and shake your head for 'yes'. The human brain communicates to the body how it is to position itself. Body language is
Referaat Railgun Table of contents Introduction......................................................................................................................................3 1.What a railgun basically is............................................................................................................4 1.1History of railguns...................................................................................................................4 1.2Theory behind it......................................................................................................................5 1.3How a railgun works...............................................................................................................6 1.4How a railgun would work on a military ship in the future....................................................8 3. Research advances so far.............................................................................................................9
2 Photographic camera & photography (SEBA) Photographic camera is an equipment used for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other) Photography is The art or practice of taking and processing photographs. 3 Context of the creation of the camera (CARLA) The camera has been used since before Christ. The impact in society the emergence of the camera was important and shocking because it helped us capture important moments in time that can no longer be repeated and helped a lot in the field of communication. The first models of cameras were used in the years before Christ where they were used to see closely objects. After its emergence was marked a before and after in history because thanks to this artefact can capture exact moments in which a event happened. Advancing in history have improved the types of cameras, passing cameras that took several min
Please calculate the maximum power output by a point absorber using the surging technology. The power of the waves is about 6.7 kW per meter of crest length. 14 Technologies to convert wave energy There is a wide range of technologies converting the energy of waves into electric energy. Harvesting wave energy enables an engineer to use different physical principles to generate the target energy. More than in all other energy sources for regenerative power engineering. Tapered channel (Tapchan) The Tapchan concept is one of the oldest wave harvesting technologies to generate electric energy. Tapchan is the acronym for TAPered CHANnel. This power plant uses the kinetic energy of the waves reaching the shores. The principle behind is, that an incoming wave flows over a tapered channel of concrete into a a higher basin. The tapering is used to enlarge the velocity of the water flow following the continuity equation. The kinetic energy of the wave is
1)Main machinery On a ship, the engine room, or ER, is the propulsion machinery spaces of the vessel. To increase the safety and damage survivability of a vessel, the machinery necessary for operations may be segregated into various spaces. The engine room is one of these spaces, and is generally the largest physical compartment of the machinery space. The engine room houses the vessel's prime mover, usually some variations of a heat engine - diesel engine, gas or steam turbine. On some ships, the machinery space may comprise more than one engine room, such as forward and aft, or port or starboard engine rooms, or may be simply numbered. 1.1)Main engine The engine room of a motor vessel typically contains several engines for different purposes. Main, or propulsion engines are used to turn the ship's propeller and move the ship through the water. They typically burn diesel oil or heavy fuel oil, and may be able to switch between the two. There are many propulsion arrangements for motor
1·1 Chapter 1 Routine maintenance and servicing 1 Contents Air cleaner element renewal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Fuel filter renewal - fuel injection engines . . . . . . . . . . . . . . . . . . . .36 Alternator drivebelt check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Hinge and lock check and lubrication . . . . . . . . . . . . . . . . . . . . . . .31 Automatic transmission fluid level check . . . . . . . . . . . . . . . . . . . . .27 Idle speed and mixture adjustment . . . . .
1.The Conceptual Architecture identifies the high-level components of the system, and the relationships among them. Its purpose is to direct attention at an appropriate decomposition other system without delving into details. Moreover, it provides a useful vehicle for communicating the architecture to non-technical audiences, such as management, marketing, and users. Logical Architecture In Logical Architecture, the externally visible properties of the components are made precise and unambiguous through well-defined interfaces and component specifications, and key architectural mechanisms are detailed. The Logical Architecture provides a detailed "blueprint" from which component developers and component users can work in relative independence. Logical Architecture. Model System Behavior Execution Architecture An Execution Architecture is created for distributed or concurrent systems. The process view shows the mapping of components onto the processes of the physical system, with atte
They know in which groups you belong and which friends you most message to. When buying something off from facebook, credit card number and other card information is collected, authentication information an also billing, shipping and contact details. They record where users have logged in, or where have their application installed, how their services are acces. That includes what operating system is used, hardware version, settings, files and software names, battery levels, signal strenght and device identifiers. When useng device, geo location and also bluetooth and wifi signals are collected. Mobile number, IP adress, browser type, language and time zone, ISP are also not safe. Facebook even collects info when you visit third party websites and apps that use their services (spotify and instagram). Instagram is popular media sharing platform for handheld devices. When it comes to Instagram, they seem to be collecting a bit less information
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