Simulation and evaluation of the influence of electromagnetic environment on UHF communication

Based on the analysis of the complex electromagnetic environment, this paper starts from the signal layer, aiming at six kinds of communication signals with different modulation styles, such as CPFSK, GMSK, BPSK, QPSK, 16QAM, 32QAM, and so on. By means of mathematical simulation, using Matlab/Simulink simulation tool, the simulation model is established and the anti-interference performance of six kinds of signals is analyzed. Using the actual communication equipment and wireless channel simulator, through the simulation test of six kinds of signals, the influence of different electromagnetic environment factors such as Co-Channel Interference, adjacent frequency interference, IF interference, mirror frequency interference, intermodulation interference on different modulation modes of voice communication and data communication in electromagnetic environment is studied, and the adaptability of electromagnetic environment is analyzed and compared.