It will be affect the range processing that the frequency agile of carrier in frequency agile signal arouse the variety of Doppler frequency, so the compensate of velocity door is obligatory.
跳频信号中载频的跳变会引起多普勒频率的变化，这对距离的处理产生影响，必须进行速度门的处理。
2
But if the Doppler frequency offset exceed the capture range of PLL, the carrier synchronization will fail.
但是，一旦多普勒频移超出了锁相环的频率捕捉范围，就无法完成载频同步。
3
The algorithm features the large estimation range for carrierfrequency deviation and high estimation accuracy.