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Jiaji Wu Zhensen Wu Chengke Wu Xidian University School of Science Xi’an, 710071, China E-mail: wujj@mail.xidian.edu.cn Abstract. We present a three-dimensional 3-D hyperspectral image compression algorithm based on zero-block coding and wavelet transforms. An efficient asymmetric 3-D wavelet transform AT based on the lifting technique and packet transform(More)
Multi-band Doppler spectrum of radar clutter at there-dimensional sea surface is calculated in this paper, the Elfouhaily sea spectrum with a direction function is applied to achieving the scattering fields is a classic PO method. Analysis on the spectrum width and shift of multi-band can be done. Larger spectrum width and shift have been seen in larger(More)
The fourth-order moment of the scattered light, namely, the correlation function of the scattered intensity fluctuation from two-dimensional optically weak homogeneous and isotropic rough surfaces obeying Gaussian distribution are investigated based on Beckmann theory and Gaussian moment theorem. Analytical and numerical results are given for the(More)
The 3-D target information can be obtained directly by the analysis of the 1-D data of the pulse laser range profile (LRP). In this paper, a new calculational method to generate and process the LRP which is based on the lidar equation is established. The LRPs of different targets are simulated by the new method, and the corresponding profile information is(More)
The generalized forward-backward method was used to investigate the scattering characteristics from the sea surface with breaking waves, which gives a preliminary analysis of mechanism of sea spike phenomenon. The integral equation using impedance boundary condition was used for one-dimensional (1-D) PM surface. GFBM increasingly improved the computational(More)
Based on the Planck's law and integrality the directional hemisphere reflectivity (DHR) and the Kirchhoffs law. And referred to the Torrance-Sparrow model and the five-parameter semi-empirical model, a new Bidirectional reflection distribution function model (BRDF) is developed in different temperature of material surface, this model will be applicable for(More)
The composite scattering from the conducting targets above and below the dielectric rough surface using the extended Propagation-Inside-Layer Expansion (EPILE) combined with the Forward-Backward method (FBM) is studied. The established integral equations are approved by comparing with the related theory. The accuracy and efficiency of the EPILE + FBM are(More)
The analytical theory for the scattering of a uniaxial anisotropic illuminated by a Laguerre-Gaussian vortex beam is presented. Based on the complex source point method and the relation between Hermite polynomial and Laguerre polynomial, the expansion of Laguerre-Gaussian vortex beam expanded in terms of spherical vector wave functions is derived. Using the(More)