نتایج جستجو برای: techniques polarimetric
تعداد نتایج: 632640 فیلتر نتایج به سال:
In radar polarimetry, incoherent target decomposition techniques help extract scattering information from polarimetric synthetic aperture (SAR) data. This is achieved either by fitting appropriate models or optimizing the received wave intensity through diagonalization of coherency (or covariance) matrix. As such, depends on antenna configuration. Additionally, a descriptor that independent con...
A new method of matrix template matching is presented in the context of pulsar timing analysis. Pulse arrival times are typically measured using only the observed total intensity light curve. The new technique exploits the additional timing information available in the polarization of the pulsar signal by modeling the transformation between two polarized light curves in the Fourier domain. For ...
A new method of matrix template matching is presented in the context of pulsar timing analysis. Pulse arrival times are typically measured using only the observed total intensity light curve. The new technique exploits the additional timing information available in the polarization of the pulsar signal by modeling the transformation between two polarized light curves in the Fourier domain. For ...
A new phase-coherent technique for the calibration of polarimetric data is presented. Similar to the one-dimensional form of convolution, data are multiplied by the response function in the frequency domain. Therefore, the system response may be corrected with arbitrarily high spectral resolution, effectively treating the problem of bandwidth depolarization. As well, the original temporal resol...
The SARTOM project addresses a key area of defence interest, namely the detection and identification of targets hidden in foliage. The project includes a program of experimental data gathering, combined with the use of advanced processing techniques designed to extract the maximum amount of information contained in the data: namely SAR Tomography and the analysis of multi-polarimetric and multi...
Research on the utility of Synthetic Aperture Radar (SAR) data in many diverse applications has seen great activity in the past decade. In particular, two powerful SAR techniques emerged during this time. Polarimetric SARS were frost demonstrated during the 1980’s and is described by van Zyl et al. [1] and Zebker et al. [2]. Since then polarimetric SAR data have been applied to most disciplines...
Pathological changes of skin will change the tissue's birefringence and structure, which can be measured by the polarization and spectral changes of the tissue's scattering light. Light-scattering spectropolarimetry is an effective tool to measure these features for quantitative pathology analysis. An epithelial tissue imaging spectropolarimeter is proposed to acquire the spectral, polarimetric...
The monitoring of maritime areas with remote sensing is essential for security reasons and also for the conservation of environment. The synthetic aperture radar (SAR) can play an important role in this matter by considering the possibility of acquiring high-resolution images at nighttime and under cloud cover. Recently, the new approaches based on the sub-look analysis for preserving the infor...
The growing interest of Radar community in retrieving the 3D reflectivity map makes both polarimetric SAR interferometry and SAR tomography hot topics in recent years. It is expected that combining these two techniques would provide much better discriminating ability for scatterers lying in the same pixel. Generally, this is about reconstruction of scattering profiles from limited and irregular...
Multibaseline (MB) PolinSAR techniques are applied to the analysis of urban areas to estimate the heights of scatterers, discriminate the layover contributions and extract scattering mechanisms. This paper applies the weighted subspace fitting (WSF) method to resolve the MB-PolinSAR problem in urban areas. Considering two scatterer signal models, i.e, the coherent and distributed scatterers, WS...
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