Correlation method based on AIS and radar angle system deviation
A technology of angle deviation and system deviation, which is applied in radio wave measurement system, radio wave reflection/re-radiation, utilization of re-radiation, etc., can solve problems such as mis-association, achieve accurate correlation, good adaptability, and high stability Effect
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[0016] refer to figure 1 . According to the present invention, the association of AIS and radar angle system deviation can be realized through the following steps:
[0017] Step 1: Estimate the angular range [-α, α] of the radar system bias, where α can be given the maximum range by empirical values, thus reducing the assumption calculation time;
[0018] Step 2: Bias to Radar Angle Make assumptions, since the angle deviation may be any value in [-α, α], quantize the angle value between [-α, α] into an array [-α+β, -α+2β...0, -β +α,α], then the real deviation must be close to a certain value in the array, β=2α / (K-1), K is the number of hypotheses;
[0019] Step 3: Suppose the angular deviation of the radar is is a certain value in the array [-α+β,-α+2β...0,-β+α,α], and on this basis, the radar measurement angle compensation is performed to obtain the calibrated radar measurement value, and at the same time The position and velocity of the AIS target in the earth coordi...
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