An Anti-distance Drag Method Based on α-β Filter
A technology of distance and tracking distance, which is applied in the field of anti-distance dragging based on α-β filtering, can solve the problems of large amount of calculation and unsuitable for application, and achieve high real-time performance, reduce the requirements of speed measurement accuracy, and reduce the amount of calculation Effect
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[0045] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.
[0046] Example conditions: Assume that the target moves away from the radar direction at a speed of 70m / s from a distance of 10.5km from the radar, and the distance towing interference moves close to the direction of the radar from a distance of 15km from the radar at a speed of 122m / s, and when the interference signal enters the tracking distance gate of the target The AGC has a falling edge jump, and the distance dragging starts.
[0047] Such as figure 1 Shown, the method that the present invention proposes carries out the following steps to above-mentioned embodiment condition:
[0048] S1. Continuously perform α-β filtering on the target trajectory, and the state variable X is expressed as:
[0049]
[0050] The state equation is expressed as:
[0051] X(k+1)=FX(k) (0.20)
[0052] Among them, F repres...
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