Title :
A new fast 2-D superresolution imaging algorithm
Author :
Hua-qiang, Liang ; Rui-guang, Liu ; Min, Zhu ; Jun-sheng, Ma
Author_Institution :
Shaanxi Key Lab. of Inf. Acquisition & Process., NWPU, Xi´´an, China
Abstract :
A novel method is proposed for reconstructing the 2-D scattering centres of radar target, research the frequency scatter model of electromagnetic scattering, we resolve the problem by extracting two 1-D scattering centres parameter instead of extracting directly 2-D scattering centres parameter, separately estimate the 1-D scattering centres in range dimension and cross dimension using conjugate unitary Root-MUSIC algorithm, group them and attain all possible spatial frequency pairs, then the unveracious frequency pairs are eliminated by spatial filtering, achieve the 2-D scattering centres parameter.
Keywords :
electromagnetic wave scattering; image reconstruction; image resolution; radar tracking; signal classification; 2D scattering centre reconstruction; 2D superresolution imaging algorithm; electromagnetic scattering; frequency scatter; multiple signal classification; radar target; root-MUSIC algorithm; spatial filtering; spatial frequency pairs; Electromagnetic modeling; Electromagnetic scattering; Frequency estimation; Image reconstruction; Image resolution; Parameter estimation; Radar imaging; Radar scattering; Scattering parameters; Spatial resolution; conjugate unitary Root-MUSIC; radar imaging; spatial filtering; super resolution;
Conference_Titel :
Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on
Conference_Location :
Xian, Shanxi
Print_ISBN :
978-1-4244-2731-4
Electronic_ISBN :
978-1-4244-2732-1
DOI :
10.1109/APSAR.2009.5374303
