典型文献
Multiframe track-before-detect method based on velocity filtering in mixed coordinates
文献摘要：
In this paper, a velocity filtering based track-before-detect algorithm in mixed coordinates is presented to address the problem of integration loss caused by inaccurate motion model in polar coordinate sensors. Since the motion of a con-stant velocity (CV) target is better modeled in Cartesian coordi-nates, the search of measurements for integration in polar sensor coordinates is carried out according to the CV model in Cartesian coordinates instead of an approximate model in polar sensor coordinates. The position of each cell is converted into Cartesian coordinates and predicted according to an assumed velocity. Then, the predicted Cartesian position is converted back to polar sensor coordinates for multiframe accumulation. The use of the correct model improves integration effectiveness and consequently improves algorithm performance. To handle the weak target with unknown velocity, a velocity filter bank in mixed coordinates is presented. The influence of velocity mis-match on the performance of filter bank is analyzed, and an effi-cient strategy for filter bank design is proposed. Numerical re-sults are presented to demonstrate the effectiveness of the pro-posed algorithm.
文献关键词：
中图分类号：
作者姓名：
WANG Liangliang;ZHOU Gongjian
作者机构：
School of Electronics and Information Engineering,Harbin Institute of Technology,Harbin 150001,China;Key Laboratory of Marine Environmental Monitoring and Information Processing,Ministry of Industry and Information Technology,Harbin 150001,China
文献出处：
引用格式：
[1]WANG Liangliang;ZHOU Gongjian-.Multiframe track-before-detect method based on velocity filtering in mixed coordinates)[J].系统工程与电子技术（英文版）,2022(02):247-258
A类：
Multiframe,multiframe
B类：
track,before,detect,method,velocity,filtering,mixed,coordinates,In,this,paper,algorithm,presented,address,problem,integration,loss,caused,by,inaccurate,motion,polar,sensors,Since,stant,CV,target,better,modeled,Cartesian,search,measurements,carried,out,according,instead,approximate,position,each,cell,converted,into,predicted,assumed,Then,back,accumulation,correct,improves,effectiveness,consequently,performance,To,handle,weak,unknown,bank,influence,mis,match,analyzed,effi,cient,strategy,design,proposed,Numerical,sults,are,demonstrate
AB值：
0.41751
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