针对雷达液位仪开发研制中的关键问题一高分辨力信号检测，采用等效时间采样原理进行应用研究。
Aimed at the key technique-high distinguishing ability at time interval, the application research was carried to completion based on equivalent time sampling.
主动探测通过不同的波形设计方法，研究了各种高分辨力信号实现高分辨距离像的方法及其优缺点和应用。
For active detection, through the different methods of waveform design, ways to synthesize high-resolution range profiles by different high-resolution signals is researched.
根据超声信号的特点，可以利用相干检测理论对信号进行处理，从而达到滤除噪声、提高分辨力的目的。
According to the characteristics of ultrasonic signal, it can be used to deal with correlation technique to filter noise and improve resolution.
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