最后给出了跳频通信发信机、接收机以及干扰机成员的仿真模型，分析了频率偏移对多频连续波干扰性能的影响。
Finally, simulation models of FH transmitter, receiver and jammer are presented. The influence of frequency excursion on performance of multi-tone continuous wave jamming is analyzed.
设计了在频率域电法勘探中发送机与接收机GPS时间同步电路，实现了多频激电仪接收机与发送机的精确时间同步进行高精度相位测量。
The frequency domain electric transmitter and receiver synchronization electrocircuit has been designed. It is concluded that the GPS time synchronization is feasible in this instrument.
因此，多模多频GNSS接收机的研究具有重要的意义。
As a result, researching for multi-mode multi-frequency GNSS receiver is of great significance.
因此，多模多频GNSS接收机的研究具有重要的意义。
As a result, researching for multi-mode multi-frequency GNSS receiver is of great significance.
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