The system uses the emitter to send ultra high frequency signals after coding with signal coder and the secondary superheterodyne mixing receiver to accept the moving target signals.
系统中发射器采用编码器编码后发送超高频信号，接收器采用二次混频型超外差式接收移动目标信号。
Based on the overlapped symbols which can achieve coding constrain, it can be improved frequency efficiency and system performance.
通过自然的符号叠加形成了编码约束关系，不仅大幅度的提高了系统的频谱效率，而且有效的提高了系统性能。
In the system of radar, Doppler frequency is very sensitive to the coding signal.
雷达系统中，相位编码信号对多普勒频率非常敏感。
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