在车牌定位方面，本文采用了灰度跳变频率算法进行粗定位。

In the aspect of vehicle plate location, author adopt the algorithm of the frequency of gray scale alternate to seek approximately location.

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研究一种跳频通信机低杂散、低相噪快速捷变频率合成器的实现途径。

An approach of a low spurious, low phase noise, agile frequency synthesizer was presented.

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