Results 171 to 180 of about 641,092 (210)

Radar polarimetry for subsurface imaging

SPIE Proceedings, 2001
The use of radar polarimetry for subsurface sensing is introduced in this paper. We developed a polarimetric borehole radar, which can acquire the full-polarimetric radar profile in a borehole. The measured profile showed that subsurface fracture characteristics can be obtained from the polarimetric analysis.
openaire   +1 more source

Aspects of Statistical Radar Polarimetry

2006 7th International Symposium on Antennas, Propagation & EM Theory, 2006
A comparison between the Kennaugh matrix and the covariance matrix formulation of second-order moment radar polarimetry reveals fundamental relationships between power and variance aspects of bi-static and mono-static radar scattering from randomly distributed targets.
openaire   +1 more source

Basic Concepts of Radar Polarimetry

1992
A comprehensive overview of the basic principles of radar polarimetry is presented. The relevant fundamental field equations are first provided in order to introduce the polarization state formulations of electromagnetic waves in the frequency domain, including the Jones and the Stokes vector formalism and its presentation on the Poincare sphere and on
Wolfgang-M. Boerner, Wei-Ling Yan, An-Qing Xi, Yoshio Yamaguchi   +3 more
openaire   +1 more source

Adaptive processing in radar polarimetry

SPIE Proceedings, 1993
In this paper, an adaptive polarimetric system is proposed, which allows for the minimization of the contribution of a stationary clutter by adapting the polarization state of the receiving antenna to the polarimetric signature of the environment by using the minimum power criterion.
Yide Wang, K. Oumansour, Eric Pottier, Joseph Saillard   +3 more
openaire   +1 more source

On the statistical aspects of radar polarimetry

Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05., 2005
Boerner, Wolfgang-Martin, Morisaki, Jorge, Danklmayer, Andreas, Chandra, Madhu   +3 more
openaire   +3 more sources

Understanding Reciprocity in Radar Polarimetry

1992
Unconventional techniques are presented for analysis of the effects of two-way propagation on electromagnetic fields. Difficulties arising from the use of different coordinate systems for transmission and reception are demonstrated and discussed. The effects of linear processes and reciprocity are worked out in detail.
openaire   +1 more source

Radar polarimetry

http://archive.org/details ...
openaire   +1 more source

Measurement and Analysis in Radar Polarimetry

1992
In this paper we consider methods for the measurement and analysis of polarimetric target information. We concentrate on three main areas; the design of a single channel real time Stokes receiver, conditions for physical realisability of the Stokes reflection matrix and a generalisation of the optimum polarisation theory of Kennaugh and Graves to the ...
openaire   +1 more source

Weibull Distribution in Radar Polarimetry

1992
Most of the clutter received by a pulse radar obeys Weibull distribution with various values of the shape parameters. Rice crop field was measured using an FM-CW radar with a frequency of 9.6 GHz, frequency excursion 200 MHz, modulation frequency 850 Hz, horizontal and vertical polarizations, transmitter power 13 dBm and horn antenna.
openaire   +1 more source

Synthetic Aperture Radar 3-D Polarimetry

IEEE Transactions on Instrumentation and Measurement, 2022
Mohammad Tayeb Al Qaseer, Matthew Dvorsky, Reza Zoughi   +2 more
exaly