多峰值信号的伪码相位估计法

 考虑到多峰值信号的出现以及传统相位估计法的不足与缺陷, 特别是针对传统方法无法提取多峰值信号主峰的不足,以及在非整数采样条件时相位误差估计的较大缺陷,提出了一种提高多峰值信号伪码相位精度的估计方法。首先通过频域提取处理去除副峰引发的模糊性,达到提取主峰的目的;然后建立了插值方程,从而提高相位估计精度。在此基础上进行了验证与评估,结果表明,此估计法可以正确提取多峰值信号的主峰,相对于传统方法而言,相位估计精度明显提高。

A Pseudo-code Phase Estimation Method Based on Multi-peak Signals

A pseudo-code phase estimation method is presented which attempts to deal with the emergence of multi-peak signals and the defect of traditional phase-estimation, especially its inablility to extract the main peak of multi-peak signals, and large phase estimation errors in non-integer sampling conditions.The new method improves the accuracy of multi-peak signals.First, the ambiguity caused by vice-peak is removed by frequency domain abstract processing, and the purpose of extracting main peak is achieved.Second, an interpolation equation is established to improve the phase estimation accuracy.On this basis, validation and assessment are conducted, and the results show that this estimation method can accurately extract the main peak of multi-peak signals, and improve phase estimation accuracy significantly as compared with traditional methods.