采用CPLD实现视频图像信号采集，提高系统性能，同时具有适应性和灵活性强、设计、调试方便等优点。
Using CPLD to realize video signal collection will enhance the system capability. It also has such advantages as adaptability, flexibility, easy to design and debug.
和灭信号检测才能的日害删强，中缓快跳频体解很等忙蒙到做扰的攻打。
With the development of signal detection technique, slow frequency-hopping systems are vulnerable to jamming attacks.
认为地震映像因干扰信号强、不能定量解释等缺点，建议不单独使用；
It is considered that the seismic mapping means shall not be used alone due to its disadvantages of strong disturbance signals and non-quantitative interpretation.
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