Multidimensional digital smoothing filters for target detection

被引:12
|
作者
Kennedy, Hugh L. [1 ]
机构
[1] Univ S Australia, Def & Syst Inst, Adelaide, SA 5001, Australia
关键词
Digital filters; Discrete Laguerre Transform; IIR filters; Image analysis; Multidimensional signal processing; TRACK-BEFORE-DETECT; SAVITZKY-GOLAY FILTERS; FIR FILTERS; MOTION ANALYSIS; DELAY; IMPLEMENTATION; SYSTEMS; DERIVATION; ALGORITHM; VISION;
D O I
10.1016/j.sigpro.2015.03.005
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Recursive, causal and non-causal, multidimensional digital filters, with infinite impulse responses and maximally flat magnitude and delay responses in the low-frequency region, are designed to negate correlated clutter and interference in the 'background' and to accumulate power due to dim targets in the 'foreground' of a surveillance sensor. Expressions relating mean impulse-response duration, frequency selectivity and group delay, to low-order linear-difference-equation coefficients are derived using discrete Laguerre polynomials and discounted least-squares regression, then verified through simulation. (C) 2015 Elsevier B.V. All rights reserved.
引用
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页码:251 / 264
页数:14
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