Title :
Maximum Entropy Method for Angular Estimation
Author :
Qiang, Li ; Shou-hong, Zhang ; Huan-ying, Zhang ; Mei, Dong
Author_Institution :
Key Lab. for Radar Signal Process., Xidian Univ., Xi´´an
Abstract :
In order to suppress angular glint in monopulse radar system, a novel method for angular estimation basing on spectrum entropy maximization is presented in this paper. Spectrum widen of difference beam echoes due to the pattern modulation is investigated. Basing on the relations between the spectrum widen, target angular motion center and waveform entropy, a novel method by searching maximum waveform entropy for angular estimation is presented to suppress angular glint. Compared with high-range-resolution angular estimation method available, the novel method performs more conspicuously in angular glint suppression. Simulations show the effectiveness of the new method
Keywords :
echo; maximum entropy methods; radar resolution; angular estimation; angular glint suppression; beam echoes; maximum entropy method; monopulse radar system; pattern modulation; spectrum entropy maximization; target angular motion center; waveform entropy; Delay effects; Entropy; Frequency; Laboratories; Optical modulation; Radar signal processing; Radar tracking; Signal resolution; Target tracking; Velocity measurement; Angular Estimation; Angular Glint; High Range Resolution; Maximum Entropy; Monopulse;
Conference_Titel :
Radar, 2006. CIE '06. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9582-4
Electronic_ISBN :
0-7803-9583-2
DOI :
10.1109/ICR.2006.343399
