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An improved integration method is applied to detect dim debris targets in this paper. The algorithm makes full use of prior orbit information to reduce motion uncertainty, and then adopts the Hough line transform to integrate echo energy from multiple pulses. Thus, the detection capability for small-size space debris in the low earth orbit can be effectively improved. The proposed method is easy to...
A coherent Hough method is proposed here to integrate the pulse-train signal. Based on a narrowband echo model, the suggested method implements the coherent integration by compensating the modulated phase terms from pulse to pulse before applying Hough transform. The improved method outperforms standard Hough transform, particularly in a very low SNR environment. The algorithm's performance is analyzed...
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