多径衰落短波信道中SFH／MFSK通信系统的性能

多径衰落短波信道中SFH／MFSK通信系统的性能 PERFORMANCE OF SFH/MFSK COMMUNICATION SYSTEM IN MULTIPATH FADING SHORT-WAVE CHANNEL 甘良才 1 first-author 余建国 1 武汉大学空间物理与电子信息学系 武汉大学空间物理与电子信息学系 Department of Space Physics and Electronics Information,Wuhan University Department of Space Physics and Electronics Information,Wuhan University 分析研究了慢跳频／Ｍ进制频率键控（ＳＦＨ／ＭＦＳＫ）通信系统在存在瑞利（Ｒａｙｌｅｉｇｈ）衰落和莱斯（Ｒｉｃｉａｎ）衰落的多径延时短波信道上的性能，导出了其准确的比特差错率的表达式，表明多径干扰数及其强度对系统性能的影响．同时给出了它们的数值结果和性能曲线． This paper analyzes and studies the performance of SFH/MFSK communication systems over short-wave Rayleigh and Rician fading channels with multipath time delay,and develops the exact expression of bit error rate （BER）, shows the effects of the numberand strength of multipath inteference on system performance, and their numerical results andperformance curves are given. 多径 衰落 慢跳频 短波 multipath fading slow frequency hopping short wave TN911.5 国家自然科学基金(61672102) 1994-02-01 2021-04-01 2