Results 281 to 290 of about 6,889,850 (329)

SAR target decomposition for stochastic natural targets for L- and C-band

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293), 2003
The authors propose a new fast algorithm for calculating target entropy and scattering mechanism (alpha angle) estimates for polarimetric SAR data. This new approach applies only for natural targets and it is validated with L- and C-band data. The algorithm is based on the fact that averaged covariance matrix for natural distributed targets presented ...
J. Praks, A.N. Arslan, H. Alasalmi, J. Koskinen, M. Hallikainen   +4 more
openaire   +1 more source

Lossless and Sufficient $\Psi$ -Invariant Decomposition of Random Reciprocal Target

IEEE Transactions on Geoscience and Remote Sensing, 2012
The target coherency or covariance matrices are the main operators useful for characterizing the polarization transformation properties of radar target by modeling the depolarization effect. In this paper, a novel decomposition of the target coherency matrix is proposed, that is sufficient for representing the physical characteristics of the observed ...
Paladini R, Ferro Famil L, Pottier E, MARTORELLA, MARCO, BERIZZI, FABRIZIO, DALLE MESE, ENZO   +5 more
openaire   +3 more sources

Wavelet decompositions versus singular value decomposition (SVD) in a fish target strength estimation

The Journal of the Acoustical Society of America, 1999
The fish target strength estimation when using acoustic echoes from a single-beam echosounder is possible after solving ill-conditioned equations where probability density functions (PDFs) of echo level, target strength, and beam pattern are involved.
Marek Moszynski, Andrzej Stepnowski
openaire   +1 more source

Template matching tracking method based on target decomposition

2016 Chinese Control and Decision Conference (CCDC), 2016
In order to improve the tracking performance of the target in complex circumstances, a novel template matching tracking method is proposed by decomposing the target into multiple sub-targets with the distinguishing features. The tracked target contains multiple areas which can be decomposed into multiple sub-targets.
Chunbo Xiu, Hongjie Li
openaire   +1 more source

Technology decomposition and mapping targeting low power dissipation

Proceedings of the 30th international on Design automation conference - DAC '93, 1993
In this paper, we address the problem of minimizing the average power dissipation during the technology dependent phase of logic synthesis. Our approach consists of two steps. In the first step, we generate a NAND decomposition of an optimized Boolean network such that the sum of average switching rates for all nodes in the network is minimum.
Chi-Ying Tsui, Massoud Pedram, Alvin M. Despain   +2 more
openaire   +1 more source

A new formulation for POLSAR incoherent target decomposition

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
This paper proposes a new formulation for POLSAR incoherent target decomposition, which models the POLSAR image as a result of a two-stage process, i.e. assembly of coherent scatterers followed by spatial distribution of incoherent atom scatterers. This assembly-distribution forward model is described by a triple matrix multiplication while its inverse
Feng Xu, Qian Song
openaire   +1 more source

Polarimetric SAR Target Decomposition based on sparse NMF

2016 Progress in Electromagnetic Research Symposium (PIERS), 2016
Polarimetric Targets Decomposition is to decompose polarimetric data into several components by different physical scattering mechanism. Traditional decomposition methods are model-based, whose basis matrix is fixed to typical physical scatterers, such as surface, double bounce, volume.
null Qian Song, null Feng Xu
openaire   +1 more source

A review of target decomposition theorems in radar polarimetry

IEEE Transactions on Geoscience and Remote Sensing, 1996
S. Cloude, E. Pottier
semanticscholar   +1 more source

Dichotomy Decomposition-based Target Scattering Vector Parameters

IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium, 2022
Junjun Yin, Jian Yang
openaire   +1 more source

Spectral classification of ecological spatial polarization SAR image based on target decomposition algorithm and machine learning

Neural computing & applications (Print), 2019
Guobin Chen, Lukun Wang, M. Kamruzzaman
semanticscholar   +1 more source