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Xiu-Ying HOU Ke-Rang WU Norihiko MORINAGA Toshihiko NAMEKAWA
The BER performance of a BPSK system with sounder in the fast Rayleigh fading and cochannel interference environment is analyzed by means of the characteristic function of the decision statistic and calculating the residue, and compared with that of a DPSK system. The results show that the BPSK system with sounder can remove random FM effectively from the received fast fading signal even in the presence of cochannel interference. In addition, the optimum power distribution between the BPSK signal and sounder which minimizes the BER and the effect of a post-detection diversity are theoretically clarified.