A Modified Track-Before-Detect Algorithm for Radar Weak Target
Track-Before-Detect (TBD) is an effective method for detection weak target. In TBD a doubted target is tracked through a time sequence of frames, and then the targets energy is integrated along the tracked trajectory to lead to detectiom Therefore the key of TBD methodology is how to accurate tracking target. A novel TBD algorithm is proposed based on Modified Hough Transform (MHT) and Particle Filter (PF). Firstly trajectories that are possible true target path are initiated by the MHT to obtain the region of the target, after that, this region is provided to the PF as the prior knowledge. According to this prior knowledge the false trajectories are eliminated and target is detected by the PF. Simulation results show the proposed algorithm can detect and track the weak target as low as 3 dB SNR.
track-before-detect particle filter hough transform modified hough transfomr
Ling Fan Xiaoling Zhang
School of Electronic Engineering School of Physics and Electronic Engineering
国际会议
2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)
大连
英文
1100-1104
2010-07-05（万方平台首次上网日期，不代表论文的发表时间）