SNR – signal to noise ratio. Iseloomustab kvaliteeti. Antud valmis alati S ( signaal ) kordades! SNR= N ( müra ) S SNR [ dB ] =10∙ log N( ) 12. Timing Advance (TA) ja miks seda vaja on • The MS continuously aligns its TX frame start based on the Timing Advance (TA) measurements received from the BTS TA value 0 … 63, each step is one bit period (3,69 s), radiowaves travel about s), radiowaves travel about 300m per microsecond, TA step is round-trip distance about 1100 m, distance to BTS 550m. 63 x 550 m = 35 km this is max cell range. Ehksiis Adaptive Frame Alignment-i jaoks vaja In the GSM cellular mobile phone standard, timing advance (TA) value corresponds to the length of time a signal takes to reach the base station from a mobile phone
The meat industry constitutes one of the main sectors in the developed countries due to its There exist different kinds of sensors based important protein contribution to the human on the interaction of food with electromag- diet. The meat market has markedly changed netic waves, particularly: sensors using during the past several years, and the trend is visible radiation, ultraviolet or infrared, toward elaborate high-quality meat products. microwaves, radiowaves, x-rays, or very For this reason, the industry must obtain meat high frequency waves (Nuclear Magnetic quality information during the production Resonance). Some applications have been process, in order to maintain quality stan- available in the market for several years, dards. Over the past few years, certain physi- particularly for laboratory use. cal sensors have been developed in order to There exist also in-line applications for
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