在卫星导航定位系统中，多普勒频率偏移是影响接收机性能的关键因素之一。
In the satellite navigation and positioning system, Doppler shift is one of the key problems that may degrade the performance of the satellite receiver.
在脉冲多普勒数字化引信的基础上，详细设计了可编程脉冲发生器、数字化接收机和数字信号处理机。
In the basis of pulse Doppler digital fuze, the programmable pulse generator, digital receiver and digital signal processor are designed in detail.
高动态环境存在较大的多普勒频移，这使得普通的GPS接收机在没有惯导辅助的情况下很难可靠工作。
There is great Doppler frequency shift under high dynamic circumstances, thus the common GPS receiver cannot work reliably without the help of inertial navigation devices.
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