In the subject of electronic technology, frequency, which has great connection with the measurement plan and result of electronicparameter, is one of the most basic parameters.
In the field of electronic technology, the frequency is basic parameter, frequency of Detection and many of the measurement of electrical parameters have a very close relationship.
在电子技术领域内，频率是一个最基本的参数，频率的检测与许多电气参数的测量都有着十分密切的关系。
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Electronic support measure target recognition utilizes basic electric wave parameter, the characteristic of pulse wave shape and the analysis on electric wave received to perform target recognition.