电脑知识与技术
電腦知識與技術
전뇌지식여기술
COMPUTER KNOWLEDGE AND TECHNOLOGY
2014年
19期
4538-4540
,共3页
低小慢目标%检测前跟踪%粒子滤波
低小慢目標%檢測前跟蹤%粒子濾波
저소만목표%검측전근종%입자려파
small low and slow target%trace before detection%particle filter wave
对于强杂波背景下的低小慢目标，雷达检测变得异常困难。先跟踪后检测（TBD）算法能够有效解决低信噪比条件下低小慢目标的检测与跟踪问题，文章介绍了经典的检测前跟踪技术，分析了基于粒子滤波器的TBD算法，分析了Sal-mond提出的PF-TBD算法，针对其不能充分利用量测值且有粒子枯竭与退化的缺点，最后提出了相应的改进算法。
對于彊雜波揹景下的低小慢目標，雷達檢測變得異常睏難。先跟蹤後檢測（TBD）算法能夠有效解決低信譟比條件下低小慢目標的檢測與跟蹤問題，文章介紹瞭經典的檢測前跟蹤技術，分析瞭基于粒子濾波器的TBD算法，分析瞭Sal-mond提齣的PF-TBD算法，針對其不能充分利用量測值且有粒子枯竭與退化的缺點，最後提齣瞭相應的改進算法。
대우강잡파배경하적저소만목표，뢰체검측변득이상곤난。선근종후검측（TBD）산법능구유효해결저신조비조건하저소만목표적검측여근종문제，문장개소료경전적검측전근종기술，분석료기우입자려파기적TBD산법，분석료Sal-mond제출적PF-TBD산법，침대기불능충분이용량측치차유입자고갈여퇴화적결점，최후제출료상응적개진산법。
It is extremely difficult to detect the small low and slow target in strong and complex electromagnetic wave environ-ment by the method of radar detection. Meanwhile, the TBD algorithm effectively solve the problems in the detection and trace of little low and slow target in low SNR conditions. The present paper introduces the classic trace technology before detection and analyzes the the particle filter based TBD algorithm. Also, the paper introduces the classic PF-TBD algorithm proposed by Salmond. After that, the author puts forward some improvement algorithms to solve the the problems of under use of measured value and the depletion and degradation of the existed particles.
