Giving out a kind of method to test a wireless analog communication systems output capability,based on the spectram analysis, sampling the analog signal and analyzing their spectrum,and picking up the single tone signal power,and accordingly can get the output signal noise ratio of single direction communication system or double direction communication systems.

According to physical signification,three metrical methods are introduced: optical communication stimulant method,extremal measure method and frequency doubling modulation method.

Design of data communication simulation experiment system based on PC;

Study and implementation of the network communication simulator;