基于互相关的高精度多普勒频率变化率测量方法

提出了一种脉组间多普勒频率变化率的高精度测量算法，该算法利用脉组相邻脉冲对间的互相关函数估计脉组模糊频率，在连续脉组间选择任一相同模糊频率进行解模糊得到各脉组相对频率，因为这些相对频率包含相同的模糊，所以可以利用差分或滤波算法得到脉组间多普勒频率变化率；计算机仿真和试验均证明了该测量算法的有效性。

The Accurate Measurement Algorithm of Doppler Frequency Rate Using Cross-Correlation

An accurate measurement algorithm of Doppler frequency rate between the clusters of pulses is given, which uses cross-correlating function between the succeeding pulse in the cluster to estimate ambiguous frequency of the cluster, and selects the same ambiguous frequency between the succeeding cluster of pulses to solve ambiguity to acquire the relative frequencies. Due to these relative frequencies include the same ambiguity, the filter algorithm can be used to estimate the Doppler frequency rate between the clusters of pulses. The effectiveness of the algorithm is demonstrated by the computer simulation and test.