Passive Coherent Multistatic SAR: Experimental Results with a Point-like Target

Nithirochananont, Ussanai; Antoniou, Michail; Cherniakov, M.

doi:10.23919/irs.2019.8768089

Cited by 4 publications

(4 citation statements)

References 14 publications

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“…Figs. 9 a and b show the experimental bistatic PSFs (BPSF 1 and 2, obtained from the first and second acquisitions, respectively) of the target [38]. Both PSFs are similar in orientation since the positions of the satellite were only slightly different.…”

Section: Resultsmentioning

confidence: 99%

“…Fig. 9 (c) shows the experimental coherent multistatic PSF (MPSF) obtained by coherently combining the aforementioned bistatic PSFs [38]. This was compared to the theoretical PSF that would be obtained if a bistatic image formation was performed on the full aperture rather than the two sub-apertures used (i.e.…”

Section: Point-like Target Resultsmentioning

confidence: 99%

“…Overall, both are in good agreement which verifies the multistatic methodology used. Comparing the coherent MPSF to the two BPSF [38], it can be seen that the multistatic PSF is much narrower than the individual bistatic PSFs. Cross-sectional plots in crossrange and range (Fig.…”

Section: Point-like Target Resultsmentioning

confidence: 99%

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Passive coherent multistatic SAR using spaceborne illuminators

Nithirochananont

Antoniou

Cherniakov

2020

IET Radar, Sonar & Navigation

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Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document.When citing, please reference the published version. Take down policyWhile the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive.

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Section: Resultsmentioning

confidence: 99%

Section: Point-like Target Resultsmentioning

confidence: 99%

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Passive coherent multistatic SAR using spaceborne illuminators

Nithirochananont

Antoniou

Cherniakov

2020

IET Radar, Sonar & Navigation

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“…The method can obtain an optimal GC for incoherent SA-MuSAR. However, the method cannot be extended to coherent SA-MuSAR because the −3 dB area size of the coherent PSF cannot be directly evaluated when it presents split mainlobe phenomenon[24],[28],[29]. As illustrated in Fig.2(b) and…”

mentioning

confidence: 99%

Forward-Looking Geometric Configuration Optimization Design for Spaceborne-Airborne Multistatic Synthetic Aperture Radar

Mao

Pei

Huo

et al. 2021

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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Spaceborne-airborne multistatic synthetic aperture radar (SA-MuSAR) has the ability to provide high-resolution forward-looking imagery for receivers, but it relies on careful design of the geometric configuration (GC). In this paper, a forward-looking GC optimization design method is proposed to obtain a high-quality fused image with limited observation time. First, the relationship between the spatial resolution and GC is illustrated by the wavenumber spectrum distribution of SA-MuSAR. Second, GC evaluators depending on the distribution of multiple wavenumber spectrum data are proposed. The GC design problem of coherent SA-MuSAR is transformed into a constrained multi-objective optimization problem (CMOP). An intelligent evolutionary algorithm is adopted to optimize the wavenumber spectrum distribution. With the proposed method, high-quality forward-looking imagery can be obtained with a short observation time. Numerical simulations are carried out to verify the effectiveness of the proposed method.

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