这是一种在整帧视频图象范围内产生相关跟踪信号的相关跟踪装置.扫描接收器产生的视频信息,连续地输入相关跟踪装置中.相关跟踪装置中的一些装置首先产生象素格式的基准图形.接着,存贮器把一帧加一行的基准图形象素信息储存起来,用于计算视视场中每一象素的方位和俯仰最佳加权值.然后,把正在接收到的一帧图象中的每一个视频象素数据,与由上一帧图象形成的基准图形中相应的象素相加,所得的结果再乘以适当的加权函数.将每一项乘积加到累加器中去,形成方位和俯仰相关误差信号,这是在全视场内帧与帧相关的复合指示.每一个象素的加权因子也进行合并,在整个象面内累计相加,在每一帧结束时,形成三个自适应比例因子,与方位和俯仰相关误差信号组合在一起,消除交叉藕合,产生出无交叉藕合相关误差信号.本装置还可以进行漂移补偿,其办法是把自适应比例因子与几个予定常数相结合,循环计算出漂移校正量,把计算结果与无交叉藕合相关误差信号合并,最后产生出无漂移相关误差信号. This is a correlation tracking device that generates the relevant tracking signals over the entire frame of video image. The video information generated by the scanning receiver is scanned continuously into the relevant tracking device. Some of the relevant tracking devices first generate pixel- Next, the memory stores one frame plus one line of reference pattern pixel information for calculating the azimuth and pitch optimum weight for each pixel in the field of view, Each video pixel data in the frame image is added to the corresponding pixel in the reference pattern formed from the previous frame image and the result multiplied by the appropriate weighting function Each product is added to the sum To form azimuth and pitch-dependent error signals, which are composite indications of frame-related frames within the full field of view The weighting factors for each pixel are also combined and cumulatively added over the entire image plane, At the end of the frame, three adaptive scaling factors are formed, combined with the azimuth and pitch-dependent error signals, eliminating cross-coupling and producing an error signal without cross-coupling. The device also performs drift compensation by The adaptive scaling factor is combined with a few predetermined constants to cyclically calculate the amount of drift correction, which is combined with the error-free correlation-free signal to produce a drift-free error signal.