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在移动无线通信领域中，许多已获得的测量数据表明：在城市蜂房移动通信中，多径衰落信道符合Ｎａｋａｇａｍｉ分布。本文通过理论分析和计算机仿真，研究了在Ｎａｋａｇａ－ｍｉ频率选择性多径衰落信道中，应用相干ＲＡＫＥ接收时，ＢＰＳＫ和ＱＰＳＫ直接序列码分多址扩频通信系统的性能，得到了差错概率理论近似计算表达式。数值计算和计算机仿真结果表明了高斯噪声、多用户干扰、多径衰落以及分集接收等对系统性能的影响。
In the field of mobile wireless communications, many of the measurement data obtained show that in urban cellular mobile communications, multipath fading channels conform to the Nakagami distribution. In this paper, by theoretical analysis and computer simulation, the performance of BPSK and QPSK direct sequence code division multiple access spread spectrum communication systems in coherent RAKE reception in Nakaga-mi frequency-selective multipath fading channel is studied, and the error probability theory Approximate calculation expression. The numerical and computer simulation results show the influence of Gaussian noise, multi-user interference, multipath fading and diversity reception on system performance.