Results on bistatic synthetic aperture radar

Walterscheid, Ingo; Brenner, Andreas; Ender, Joachim

doi:10.1049/el:20045466

Cited by 50 publications

(31 citation statements)

References 4 publications

(4 reference statements)

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“…It is caused by using the reference slant range of transmitter and receiver when implementing the second range compression in RDA. According to the definitions given in [23,24], the range and azimuth resolution of the two targets are 1. …”

Section: Simulation Experimentsmentioning

confidence: 99%

Bistatic Forward-Looking Synthetic Aperture Radar Imaging Based on the Modified Loffeld's Bistatic Formula

Ma¹,

Gu²,

Su³

et al. 2014

PIER M

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Abstract-Bistatic forward-looking SAR (BFSAR) has many potential applications, such as selflanding in bad weather and military detection. Therefore, BFSAR receives considerable attention recently. The imaging algorithms for BFSAR are the difficulties of the study. The original Loffeld's Bistatic Formula (LBF) can handle most general bistatic SAR configurations well. But in some complex bistatic geometries, such as high squint or forward-looking cases, the performance of LBF is degenerated. Some extended LBF (ELBF) methods have been developed, which improve the performance of LBF in some special geometries, but still not the forward-looking configuration. In this paper, we modify the LBF method and try to solve the instantaneous azimuth frequencies of transmitter and receiver directly. Then, we can obtain a bistatic point target reference spectrum (BPTRS), which is accurate enough for forward-looking configuration. A range Doppler algorithm (RDA) based on this BPTRS is derived. Finally, simulations validate the accuracy of the modified Loffeld's Bistatic Formula (MLBF) and effectiveness of imaging algorithm.

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Section: Simulation Experimentsmentioning

confidence: 99%

Bistatic Forward-Looking Synthetic Aperture Radar Imaging Based on the Modified Loffeld's Bistatic Formula

Ma¹,

Gu²,

Su³

et al. 2014

PIER M

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“…Bistatic SAR (BISAR) with separated transmitter and receiver flying on different platforms has become of great interests [58][59][60][61]. Most of BISAR research is focused on the engineering realization and signal processing algorithm with few on land-based bistatic experiments or theoretical modeling of bistatic scattering.…”

Section: Bistatic Sar Imagingmentioning

confidence: 99%

Polarimetric Scattering Modeling and Information Retrieval of Sar Remote Sensing --- A Review of Fdu Work

Jin

2010

PIER

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Abstract-Synthetic aperture radar (SAR) imagery technology is one of most important advances in space-borne microwave remote sensing during recent decades. Completely polarimetric scattering from complex terrain surfaces can be measured. Polarimetric SAR (POLSAR), and its relevant technologies, such as POL-interferometric SAR (POLINSAR), bistatic SAR (POL-BISAR), high resolution (in m and dm resolution) SAR, inverse SAR (ISAR) etc., have been providing rich all-weather, all-time and high-resolution data and images of active miscrowave remote sensing. Fully understanding and retrieving information from polarimetric scattering signatures of natural media and SAR images have become a key issue for the SAR remote sensing and its broad applications. Many researches on polarimetric scattering and SAR imagery technology have been carried out (e.g., [1][2][3][4][5][6]). This paper presents a review of the research works in Fudan University (FDU) during recent years on theoretical modeling of the terrain surface for polarimetric scattering simulation and Mueller matrix solution, mono-static and bistatic SAR image simulation, new parameters for unsupervised surface classification, DEM inversion, change detection from multi-temporal SAR images, and reconstructions of buildings from multi-aspect SAR images, etc. . Some applications are briefly reported.Corresponding author: Y.-Q. Jin (yqjin@fudan.ac.cn).

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“…The interest in bistatic radar, particularly synthetic aperture radar (SAR) has rapidly increased in recent years [22,23,24,25,26,27,28]. This is based on the specific advantages of bistatic radar configurations in comparison to monostatic systems like increased information with regard to feature extraction and classification.…”

Section: Near-space Passive Radar Remote Sensingmentioning

confidence: 99%

Near-Space Microwave Radar Remote Sensing: Potentials and Challenge Analysis

2010

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Near-space, defined as the region between 20 km and 100 km, offers many new capabilities that are not accessible to low earth orbit (LEO) satellites and airplanes, because it is above storm and not constrained by either the orbital mechanics of satellites or the high fuel consumption of airplanes. By placing radar transmitter/receiver in near-space platforms, many functions that are currently performed with satellites or airplanes could be performed in a cheaper way. Inspired by these advantages, this paper introduces several near-space vehicle-based radar configurations, such as near-space passive bistatic radar and high-resolution wide-swath (HRWS) synthetic aperture radar (SAR). Their potential applications, technical challenges and possible solutions are investigated. It is shown that near-space is a satisfactory solution to some specific remote sensing applications. Firstly, near-space passive bistatic radar using opportunistic illuminators offers a solution to persistent regional remote sensing, which is particularly interest for protecting homeland security or monitoring regional environment. Secondly, near-space provides an optimal solution to relative HRWS SAR imaging. Moreover, as motion compensation is a common technical challenge for the described radars, an active transponder-based motion compensation is also described.

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Results on bistatic synthetic aperture radar

Cited by 50 publications

References 4 publications

Bistatic Forward-Looking Synthetic Aperture Radar Imaging Based on the Modified Loffeld's Bistatic Formula

Bistatic Forward-Looking Synthetic Aperture Radar Imaging Based on the Modified Loffeld's Bistatic Formula

Polarimetric Scattering Modeling and Information Retrieval of Sar Remote Sensing --- A Review of Fdu Work

Near-Space Microwave Radar Remote Sensing: Potentials and Challenge Analysis

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