DEVELOPMENT OF THE METHODOLOGY FOR ESTIMATING THE NECESSARY BANDWIDTH OF PHASE-SHIFT KEYED SIGNALS IN A RADIO TRANSMITTING DEVICE
The features of the development of a method for estimating the necessary bandwidth of phase-shift keyed signals in a radio transmitting device are considered, namely: the establishment of model parameters that exclude signal distortion by band-pass filters (reference line); determination of the minimum signal level at the receiver input, ensuring the transmission of information with a given quality for the reference line; reducing the bandwidth of the filters of the transmitter and receiver, for the corresponding necessary excess of the signal level at the receiver input compared to the reference line, providing transmission with the indicated energy loss; energy loss in the algorithm. The developed estimation method makes it possible to determine the probability of a symbol failure in the received information sequence for given signal manipulation parameters (type of manipulation, duration and elementary parcel envelope parameters), signal frequency band, signal level at the receiver input and reference level in the resolver. A flowchart of the procedure for calculating the energy loss coefficient using a software implementation that simulates a phase-shift keyed signal communication system is proposed. This topic is particularly relevant, given that phase-shift keyed signals have a very wide scope of application, and the number of telecommunication systems in use increases, using new technologies for data transmission