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Weak-signal-detection

于 2020-11-09 发布 文件大小:172KB
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  本文利用软件相移技术得到相互正交的参考正弦波信号;通过互相关算法,完成了软正交矢量型LIA相关器的具体实现;利用该方法实现了对微弱信号幅值和相位的检测,有效地抑制干扰,减少了硬件电路成本。通过Matlab仿真,验证了该算法具有一定的优越性。(In this paper, the software technology is orthogonal to the phase shift of the reference sine wave signal through cross-correlation algorithm to complete the implementation of soft orthogonal vector LIA correlator achieved using this method for detecting a weak signal amplitude and phase, effectively suppress the interference and reduce the cost of the hardware circuit. By Matlab simulation show that the algorithm has certain advantages.)

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