Point spread function analysis for BSAR with GNSS transmitters and long dwell times: Theory and experimental confirmation

F. Liu; M. Antoniou; Z. Zeng; M. Cherniakov

doi:10.1109/LGRS.2012.2223655

Point spread function analysis for BSAR with GNSS transmitters and long dwell times: Theory and experimental confirmation

F. Liu
, M. Antoniou
, Z. Zeng
, M. Cherniakov

School of Information and Electronics

University of Birmingham

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

This letter conducts a point spread function (PSF) analysis for bistatic synthetic aperture radar (BSAR) systems where the transmitter is in medium Earth orbit, and the receiver is fixed on the ground. To achieve a reasonable azimuth resolution under such a configuration, the trajectory of the satellite can no longer be approximated as a straight line; therefore, current methods for PSF analysis are insufficient. The solution proposed involves extension of the generalized ambiguity function to accommodate satellite trajectory curvature. The theoretical analysis shows effects unlike those observed in monostatic or even the general BSAR and is verified by both simulation and experimental results using navigation satellites as the transmitting platforms.

Original language	English
Pages (from-to)	781-785
Number of pages	5
Journal	IEEE Geoscience and Remote Sensing Letters
Volume	10
Issue number	4
DOIs	https://doi.org/10.1109/LGRS.2012.2223655
Publication status	Published - Jul 2013

Keywords

Asymmetric bistatic synthetic aperture radar (BSAR) systems
Generalized ambiguity function (GAF)
Long integration time
Point spread function (PSF) analysis

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10.1109/LGRS.2012.2223655

Cite this

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abstract = "This letter conducts a point spread function (PSF) analysis for bistatic synthetic aperture radar (BSAR) systems where the transmitter is in medium Earth orbit, and the receiver is fixed on the ground. To achieve a reasonable azimuth resolution under such a configuration, the trajectory of the satellite can no longer be approximated as a straight line; therefore, current methods for PSF analysis are insufficient. The solution proposed involves extension of the generalized ambiguity function to accommodate satellite trajectory curvature. The theoretical analysis shows effects unlike those observed in monostatic or even the general BSAR and is verified by both simulation and experimental results using navigation satellites as the transmitting platforms.",

keywords = "Asymmetric bistatic synthetic aperture radar (BSAR) systems, Generalized ambiguity function (GAF), Long integration time, Point spread function (PSF) analysis",

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AU - Liu, F.

AU - Antoniou, M.

AU - Zeng, Z.

AU - Cherniakov, M.

PY - 2013/7

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N2 - This letter conducts a point spread function (PSF) analysis for bistatic synthetic aperture radar (BSAR) systems where the transmitter is in medium Earth orbit, and the receiver is fixed on the ground. To achieve a reasonable azimuth resolution under such a configuration, the trajectory of the satellite can no longer be approximated as a straight line; therefore, current methods for PSF analysis are insufficient. The solution proposed involves extension of the generalized ambiguity function to accommodate satellite trajectory curvature. The theoretical analysis shows effects unlike those observed in monostatic or even the general BSAR and is verified by both simulation and experimental results using navigation satellites as the transmitting platforms.

AB - This letter conducts a point spread function (PSF) analysis for bistatic synthetic aperture radar (BSAR) systems where the transmitter is in medium Earth orbit, and the receiver is fixed on the ground. To achieve a reasonable azimuth resolution under such a configuration, the trajectory of the satellite can no longer be approximated as a straight line; therefore, current methods for PSF analysis are insufficient. The solution proposed involves extension of the generalized ambiguity function to accommodate satellite trajectory curvature. The theoretical analysis shows effects unlike those observed in monostatic or even the general BSAR and is verified by both simulation and experimental results using navigation satellites as the transmitting platforms.

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JO - IEEE Geoscience and Remote Sensing Letters

JF - IEEE Geoscience and Remote Sensing Letters

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Point spread function analysis for BSAR with GNSS transmitters and long dwell times: Theory and experimental confirmation

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Keywords

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