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本文阐述了混合DS/SFH扩频通信技术在多目标测量中的应用;分析了发送,包络平方接收,并给出了距离及其分辨率的表达式。在分析系统性能时,电磁波所经过的信道模拟为Nakagami衰落信道;在基于选择最大输出的基础上分析了任一目标回波的平均最大信噪比;数值计算研究了衰落强度、跳频点数以及直扩增益对信号的影响。
In this paper, the application of hybrid DS / SFH spread spectrum communication technology in multi-target measurement is described. The transmission, envelope square reception is analyzed, and the expression of the distance and its resolution is given. In the analysis of system performance, the channel through which electromagnetic waves pass is simulated as a Nakagami fading channel; the average maximum signal-to-noise ratio of any target echo is analyzed on the basis of the selected maximum output; numerical computations are performed on the fading intensity, frequency hopping points, The effect of DS gain on signal.