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Research on the anti-noise performance of Doppler frequency estimation algorithm

机译：多普勒频率估计算法的抗噪性能研究

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The anti-noise Doppler frequency estimation algorithm was studied in this paper. This paper focuses on the complex correlation of Doppler frequency estimation algorithm, and compares the anti-noise performance of narrowband signals and broadband signals, illustrating the anti-noise performance of broadband signals is better than the anti-noise performance of narrowband signals. In addition, this paper shows the longer the length of the m-sequence is, the better is anti-noise performance. Meanwhile the anti-noise performance of Walsh sequence is better than that of m-sequence; finally, the anti-noise performance of the Gold sequence is better than that of m-sequence when both sequences are the same order; the anti-noise performance of improved Walsh sequence is better than that of the original Walsh sequence.
机译：研究了抗噪声多普勒频率估计算法。本文着重研究了多普勒频率估计算法的复杂相关性，并比较了窄带信号和宽带信号的抗噪声性能，说明宽带信号的抗噪声性能优于窄带信号的抗噪声性能。此外，本文表明，m序列的长度越长，抗噪性能越好。同时，沃尔什序列的抗噪性能优于m序列。最后，当两个序列相同时，Gold序列的抗噪性能优于m序列。改进后的沃尔什序列的抗噪性能优于原始沃尔什序列。

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