Target distance tracking method
A technology of target distance and discrete domain, which is applied in the field of target distance tracking based on iterative linear smoothing Newton method, can solve the problem that the tracking performance is difficult to meet the engineering requirements, and achieve the effect of self-adaptive update, improved stability, and broadened application range
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[0051] based on the following Figure 1 to Figure 5 , specifically explain the preferred embodiment of the present invention.
[0052] Such as figure 1 As shown, the present invention provides a kind of target distance tracking method, comprises the following steps:
[0053] Step S1, design as figure 2 The first-order one-step-forward RLSN predictor shown, the discrete domain transfer function of this RLSN predictor is:
[0054]
[0055] Among them, μ is the feedback scaling factor, μ=0.05, N is the order of the moving average, N=8;
[0056] Step S2, in the kth processing cycle (Cohrent Processing Interval, CPI), utilize radial velocity measured value to calculate the acceleration estimated value of last CPI
[0057]
[0058] in, is the radial velocity measurement value of the kth CPI, is the radial velocity measurement value of the k-1th CPI, T is the duration of one CPI, k=2,3,...;
[0059] Step S3, judging whether the CPI count is less than 10, if so, proc...
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