A Testing Method Used in Performance of Analog Communication System

摘要

In this paper, we propose a method to testing an analog voice communication system Signal Noise Ratio (SNR) which base on analyze for power spectrum. The whole performance of systems is evaluated through test SNR of output signal accurately in a simplex analog communication system. The SNR of simplex analog system's output can be measured exactly. Monosyllabic signal is transferred from transmitter and antennas to receiver through actual wireless channels. The signal is demodulated and outputted in receiver. Monosyllabic testing and compute of SNR were operated, and this method based on testing device of analysis for power spectrum. We can actualize this measurement method by Personal Computer (PC) and MATLAB. This scheme avoided that referred to closed loop, thus it is become very simply about testing of whole performance for system of semiduplex or simplex.