Polarimetric bistatic-measurement facility for point and distributed targets

Hauck, B.; Ulaby, F. T.; Roo, R.D. De

doi:10.1109/74.667324

Cited by 43 publications

(21 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For evaluating the scattering model developed in this paper, in this section we compare the model prediction with the types of bistatic scattering measurements made by Hauck et al (1998). Figures 11-13 account for the like VV-, HH-and VH-polarized incoherent scattering from rough surfaces with surface rms height of 0.2 and correlation length of 1.0, normalized to the incident wavelength.…”

Section: Comparisons With Measured Datamentioning

confidence: 99%

Polarimetric surface scattering omnidirectionally from distributed target

Hsieh¹

2002

International Journal of Remote Sensing

View full text Add to dashboard Cite

The model developed in this paper aims to predict scattering characteristics along the azimuth angle, in order to understand distribution of scatter energy from statistically rough surfaces. Scattering information must be determined omnidirectionally, not just in the specular or backscatter direction. The objective of this paper is to examine the bistatic scattering characteristics for like-and cross-polarized scattering from randomly rough surfaces along the azimuth angle. Because the single cross-polarized scattering coeYcient vanishes in the plane of incidence, and the single like-polarizations reach their minima near 90 degrees from the incident plane, multiple scattering shows signi cant contribution to the cross-polarized scattering in the plane of incidence and to the like-polarizations in the orthogonal plane. The phase terms of Green's function discriminate between scattering in upward or downward directions, so that the contribution of multiple scattering can be studied. The existing integral equation method ignores the phase terms of Green's function and therefore fails to predict scattering strength along the azimuth angle. In this paper we study the eVect of multiple scattering under diVerent surface parameters and make comparisons between the model prediction and experimental measurements. The model prediction demonstrates good agreement with experimental data for both likeand cross-polarized scattering coeYcients.

show abstract

Section: Comparisons With Measured Datamentioning

confidence: 99%

Polarimetric surface scattering omnidirectionally from distributed target

Hsieh¹

2002

International Journal of Remote Sensing

View full text Add to dashboard Cite

show abstract

“…In Section 3, the behavior of backscatter enhancement is analyzed. Finally, a comparison is attempted between the prediction of the modified scattering model with the measured data published in Hauck et al (1998) to the theoretical analysis.…”

Section: C-y Hsiehmentioning

confidence: 99%

“…In Figure 2, the measurements shown were acquired from rough surfaces with the normalized surface correlation length 0.2, surface standard deviation 1.0, and relative dielectric constant 62 (Hauck et al, 1998). The incident angle and scatter angle are both chosen to be 45 ı .…”

Section: Comparisonsmentioning

confidence: 99%

Depolarized Backscatter Phenomenon from Rough Surfaces

Hsieh

2009

Electromagnetics

View full text Add to dashboard Cite

In this article, we study the depolarized backscatter enhancement phenomenon for electromagnetic wave scattering from rough surfaces. There is some new experimental data on light scattering from rough metallic surfaces that shows there is an enhancement of backscattering in the antispecular direction under certain conditions of surface parameters, wave polarization, and operating frequency. From a roughly random surface, the backscattering enhancement is predicted as the constructive interference of multiple surfaces scattering. The study is based upon the integral equation method modified to be able to predict the phenomenon of multiple scattering and backscattering enhancement. From the study, it was found that the backscattering enhancement takes place largely on the specialized surface parameters compared with the incident wavelength. Further, it is also concluded that the depolarized multiple scattering makes many contributions along the plane of incidence from random rough surfaces, but depolarized single scattering makes little contributions. In the comparison of model prediction of total multiple scattering strength with measured data along the specular plane, excellent agreement is obtained.

show abstract

“…Some experiments have been performed by using two antennas on separate platforms [12][13][14][15][16] while others are carried out with a monostatic radar and a reflective plane [17]. Within this framework, ONERA has performed scaled-model measurements in its anechoic facility BABI.…”

Section: Introductionmentioning

confidence: 99%

A Rigorous Forest Scattering Model Validation Through Comparison With Indoor Bistatic Scattering Measurements

Bellez¹,

Roussel²,

Dahon³

et al. 2011

PIER B

View full text Add to dashboard Cite

Abstract-In this paper, we present numerical simulations and indoor bistatic scattering measurements on scaled targets. The targets are vertical and/or tilted dielectric parallelepipeds representing the main forest elements (tree-trunks and primary branches) at VHF and low-UHF frequencies. They are placed above an aluminum circular plate to simulate a flat ground. The measurements have been conducted in the anechoic chamber of the "Centre Commun de Ressources Microondes" (CCRM) in Marseille, France. A 3D forest scattering model using a Method of Moments (MoM) is deployed to simulate the electric fields scattered by these targets. Two radar geometric, azimuthal and zenithal, bistatic configurations with special attention to the specular direction have been considered. Simulation results and experimental data are confronted for both V V -and HH-polarizations in order to evaluate the accuracy of our model. We have obtained a very good agreement between theoretical and experimental scattered fields for both the magnitude and phase.

show abstract

Polarimetric bistatic-measurement facility for point and distributed targets

Cited by 43 publications

References 2 publications

Polarimetric surface scattering omnidirectionally from distributed target

Polarimetric surface scattering omnidirectionally from distributed target

Depolarized Backscatter Phenomenon from Rough Surfaces

A Rigorous Forest Scattering Model Validation Through Comparison With Indoor Bistatic Scattering Measurements

Contact Info

Product

Resources

About