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一种利用目标噪声进行被动跟踪的自适应滤波器,以解决在噪声统计特性不清楚时,对机动目标的跟踪,采用递推线性估计方法对噪声统计量进行自适应估计,并将信号状态和噪声统计量的估计交替进行。时坦克目标进行的计算机模拟和外场实验显示了良好的跟踪特性,给出了满意的目标距离、速度和方向估计。
An adaptive filter based on the target noise for passive tracking is proposed to solve the problem of tracking the maneuvering target when the statistical properties of the noise are not clear. The recursive linear estimation method is adopted to estimate the noise statistics adaptively. The signal state and Estimates of noise statistics are alternated. Computer simulations and field experiments performed on tank targets show good tracking characteristics and give satisfactory target distances, velocities and direction estimates.