An algorithm is proposed to estimate the Doppler frequency rate-of-change of PSK signal. DFT is used to realize the coherent integration among pulses.
提出了对相位编码信号的多普勒频率变化率估计算法,采用离散傅立叶变换实现了脉冲间的相关积累,算法具有一定的信噪比门限,估计性能接近最优。
参考来源 - 利用空频域信息的单站无源定位与跟踪关键技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
本文选用多普勒频率变化率定位法作为海上无源探测系统的定位方法。
The paper selects the Doppler changing rate method in naval passive location system.
在这期间，目标本身的多普勒频率又是变化的，当多普勒频率变化率较大时，容易产生频普的混叠。
During this while, the Doppler frequencies of the targets are changing and the spectrum of these targets are easy to arise a aliasing error when the rate of Doppler frequencies is large.
该算法具有相对频率估计精度高、解模糊过程简单、运算量小、多普勒频率变化率测量精度高等优点。
The relative frequency and Doppler frequency rate estimation accuracy is high, and the process of solving the ambiguity is simple.
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