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本文论述了关于选频衰落信道通信直接序列扩频信号的接收方法.利用广义静态非相关散射(WSSUS)信道模型说明衰落统计.结果表明.在关于这种信道的一些假设条件下.例如在一个数据符持续期内时间不变.可获得接收畸变信号的一种正交表示式.从而实现具有一定复杂性的最佳非相关接收机.分析表明,开发选频信道的固有分集.可将接收机的误差概率减小几个数量级.本文还讨论了接收机的最佳选择信道及干扰敏感度.
In this paper, the reception method of direct sequence spread spectrum (DSSS) signals for frequency-selective fading channel communication is discussed. The fading statistic is described using the generalized static non-correlated scattering (WSSUS) channel model. The results show that under some assumptions about such a channel, Data symbols remain unchanged for an extended period of time. An orthogonal representation of the received distortion signal is obtained, resulting in an optimal non-correlated receiver with a certain degree of complexity. The analysis shows that exploiting the inherent diversity of the frequency-selective channels, The error probability of the machine is reduced by several orders of magnitude.This article also discusses the receiver’s best choice of channel and interference sensitivity.