基于平行线坐标变换的检测前跟踪算法

doi:10.7527/S1000-6893.2021.25644

Abstract

Abstract: To optimize the real-time performance of target detection, a track-before-detect algorithm is proposed based on parallel-line-coordinate transformation. First, the measurement point coordinates are mapped to the radial distance-time coordinate and normalized and a parallel line with the y axis as the symmetrical axis is established, and then point-to-line conversion is realized according to transformation rules. After the plane is gridded, the number of votes and energy are accumulated, and then peak extraction and track correction are performed. Finally, the track of the target is output. The simulation results show that the detection probability of the Parallel-line-coordinate Transformation based Track-Before-Detect (PT-TBD) algorithm is better than that of the modified Hough Transformation based Track-Before-Detect (HT-TBD) algorithm, the false track rate of the two is similar, and the calculation speed of the PT-TBD is faster than that of the HT-TBD algorithm.

Key words: weak target, parallel-line-coordinate transformation, non-coherent accumulation, track before detect, accumulated loss

CLC Number:

V243.2
TN957

BO Juntian, WANG Guohong, YU Hongbo, PENG Zhigang. Track before detect algorithm based on parallel-line-coordinate transformation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(8): 325644-325644.

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Track before detect algorithm based on parallel-line-coordinate transformation

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