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最近几年,跳频无线电通信的应用严重地防碍了通信情报的获取(电子战的一个重要组成部分)。利用普通的接收机和测向设备对跳频无线电台进行截获一直是困难的,而且实际上不可能定位。对跳频无线电台进行截获比较简单的方法之一是采用一,种足够快的搜索接收机捕捉住跳频信号。问题是:足够快究竟是多快呢?
In recent years, the application of frequency hopping radio communications has seriously hampered the acquisition of communications (an important part of electronic warfare). Intercepting a frequency hopping radio station using conventional receivers and direction finding equipment has been difficult and practically impossible to locate. One of the easier ways to intercept a frequency hopping radio is to use a fast enough search receiver to catch the frequency hopping signal. The question is: how fast is fast enough?