Title :
An extended track-before-detect algorithm for infrared target detection
Author :
Xiong, Y. ; PENG, JIA-XIONG ; Ding, Ming-yue ; XUE, DONG-HUI
Author_Institution :
Dept. of Comput. Sci., Hong Kong Univ., Hong Kong
fDate :
7/1/1997 12:00:00 AM
Abstract :
Track-Before-Detect (TBD) approaches have important applications such as the detection of small, dim targets in a long-range Infrared Detection and Tracking (IRDT) system. The movement model of target limited by TBD is extended to that of target with constant acceleration in this work. An algorithm based on linear variant-coefficient difference equation for moving target indication is proposed. Moreover, based on parametric models of target and background, this paper presents an analysis of its optimal signal-to-noise ratio (SNR) gain versus target and background characteristics as well as the sensitivity of this gain to mismatch.
Keywords :
clutter; difference equations; optical tracking; sensitivity; target tracking; background characteristics; constant acceleration; extended track-before-detect algorithm; infrared target detection; linear variant-coefficient difference equation; mismatch; movement model; moving target indication; optimal signal-to-noise ratio; parametric models; sensitivity; Acceleration; Difference equations; Infrared detectors; Object detection; Optical filters; Optical sensors; Sensor arrays; Signal to noise ratio; Target tracking; Vectors;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
