基于雙正交FDWT的雷達(dá)數(shù)據(jù)壓縮和目標(biāo)識別方法
THE METHODS OF RADAR DATA COMPRESSION AND TARGET IDENTIFICATION BASED ON BIORTHOGONAL FDWT
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摘要: 本文由雙正交共軛濾波器構(gòu)造有限維內(nèi)積空間的雙正交多分辨分析和快速離散小波變換(FDWT),提出信號的對偶小波變換方法,并將其用于降低雷達(dá)數(shù)據(jù)存儲量,提出雙正交變換系數(shù)篩選方法以及基于壓縮數(shù)據(jù)的小波域相關(guān)和最小距離分類方法。通過六種飛機(jī)目標(biāo)的距離高分辨數(shù)據(jù)的分類實驗,證明本文提出的變換、壓縮和識別方法是有效的。Abstract: In this paper, by using the biorthogonal quadrature niters, the biorthogonal mul-tiresolution of finite dimension space equipped with inner product and the fast discrete wavelet transform (FDWT) are constructed. The dual transform method is proposed and the radar data storage is reduced by it. The method of choosing the wavelet coefficients, and the methods of correlation and nearest neighbor classification in wavelet domain based on the compressed data, are presented. The experimental results of the classification, using the high resolution range returns from six kinds of aircraft, show that the methods of transform, compression and recognition are efficient.
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唐白玉,褚揚(yáng)清,柯有安.正交FDWT與雷達(dá)數(shù)據(jù)壓縮及目標(biāo)識別方法.系統(tǒng)工程與電子技術(shù),1997, 19(8): 4-7.[2]Waagen D E, Argast J D, McDonnell J R. Evolving wavelet compression strategies. AD-A281247.[3]Antonini M, Barland M, Mathieu P, Daubechies I. Image coding using wavelet transform. IEEE Trans. on Image Processing, 1992, IP-1(2): 205-220. -
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