According to the principle of view the Doppler frequency detection, the detector makes up of the transmitter, the transfer circuit, receiver and signal processing circuit.

根据多卜勒频偏检测原理，该探测器由发射机、转换电路、接收机和信号处理电路构成，发射信号是设计的关键。

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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。

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In the basis of pulse Doppler digital fuze, the programmable pulse generator, digital receiver and digital signal processor are designed in detail.

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。

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As is to be expected, ordinary digital transmission is nowhere near robust enough to cope with the problems experienced by a mobile receiver, which can suffer from all sorts of doppler-shift effects and multipath radio interference as it moves around the place.

ECONOMIST: America is finally poised to get mobile television