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自动检测雷达信号的任务是从噪声加目标信号的回波中可靠地检测出目标信号来.利用目标回波信号在距离上的相关性和噪声信号的随机性,通过对回波信号在时间上的积累,就能提高信噪比,从而有利于发现目标。滑窗检测器正是根据这一原理而设计出来的数字式视频积累器.它将雷达视频回波信号在距离和幅度上分别量化,并对同一距离单元N次量化所得的1元素积累起来与某一门限相比较,超过此门限就认为有目标出现,否则是噪声。随着雷达探测脉冲不断发射,滑窗每次将获得一个新元素0或1;
The task of automatic detection of radar signals is to reliably detect the target signal from the echo of the noise plus target signal.Using the correlation of the target echo signal in distance and the randomness of the noise signal, Of accumulation, can improve the signal to noise ratio, which will help find the target. The sliding window detector is a digital video accumulator designed according to this principle.It quantifies the distance and amplitude of the radar video echo signal separately and accumulates 1 element quantified by N times of the same distance unit, A threshold compared to more than this threshold that there is a target, otherwise it is noise. As the radar probe pulses fire, the sliding window will each receive a new element 0 or 1;