The coherent/ incoherent correlation method, matched filters, sequential detection and FFT technique can use to combat the effects of Doppler in PN acquisition. 为克服这类影响,通常采用相干/非相干相关法、匹配滤波法、序列检测及FFT技术来克服多普勒频移对码捕获的影响。
Experimental results and a theoretical analysis of incoherent and coherent detection are presented. 本文介绍了空气中太赫兹波的非相干和相干探测的实验结果和理论分析。