【摘要】 目的提出一种伪随机噪声（ＰＲＮ）码调制的准正弦信号参数估计的自适应搜索方法．方法采用矩和自适应变化率调节的步长对信号的多普勒频移和时延进行搜索．结果缩短了搜索时间，而且对噪声也表现出一定程度的不敏感性．结论所提出的算法改善了参数估计性能．更多还原

【Abstract】 Aim To present an adaptive algorithm for parameter estimation of pseudo random noise(PRN) code modulated pseudo sinusoid signal. Methods The momentum and the adaptive learning rate adjusted step were used to search Doppler frequency and delay. Results The algorithm reduces the search time, and it is less sensitive to noise as well. Conclusion The algorithm proposed improves the performance of parameter estimation.更多还原