Analysis of Phase Error Effects on Stripmap SAS

Daniel A. Cook; Daniel C. Brown

doi:10.1109/JOE.2007.907935

Analysis of Phase Error Effects on Stripmap SAS

Daniel A. Cook
, Daniel C. Brown

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

56 Scopus citations

Abstract

It is often of interest to consider how uncompensated platform motion can degrade the ideal point scatterer response (PSR) of a synthetic aperture sonar (SAS). This information can be used to shape the design of the sonar itself as well as that of the platform carrying it. Also, knowledge of how certain types of motion affect a SAS image can reduce the time spent in troubleshooting motion estimation and compensation schemes. In the field of spotlight-mode synthetic aperture radar (SAR), the effects of phase errors across the synthetic aperture are well documented (for example, Chapter 5 of Carrara et al., 1995). The counterpart problem for the stripmap mode is less well developed in the literature. This paper explores the effects of uncompensated phase errors on stripmap imagery and shows that, under certain conditions, they are similar to those for spotlight mode processing.

Original language	English (US)
Pages (from-to)	250-261
Number of pages	12
Journal	IEEE Journal of Oceanic Engineering
Volume	34
Issue number	3
DOIs	https://doi.org/10.1109/JOE.2007.907935
State	Published - Jul 2009

All Science Journal Classification (ASJC) codes

Ocean Engineering
Mechanical Engineering
Electrical and Electronic Engineering

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10.1109/JOE.2007.907935

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abstract = "It is often of interest to consider how uncompensated platform motion can degrade the ideal point scatterer response (PSR) of a synthetic aperture sonar (SAS). This information can be used to shape the design of the sonar itself as well as that of the platform carrying it. Also, knowledge of how certain types of motion affect a SAS image can reduce the time spent in troubleshooting motion estimation and compensation schemes. In the field of spotlight-mode synthetic aperture radar (SAR), the effects of phase errors across the synthetic aperture are well documented (for example, Chapter 5 of Carrara et al., 1995). The counterpart problem for the stripmap mode is less well developed in the literature. This paper explores the effects of uncompensated phase errors on stripmap imagery and shows that, under certain conditions, they are similar to those for spotlight mode processing.",

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AB - It is often of interest to consider how uncompensated platform motion can degrade the ideal point scatterer response (PSR) of a synthetic aperture sonar (SAS). This information can be used to shape the design of the sonar itself as well as that of the platform carrying it. Also, knowledge of how certain types of motion affect a SAS image can reduce the time spent in troubleshooting motion estimation and compensation schemes. In the field of spotlight-mode synthetic aperture radar (SAR), the effects of phase errors across the synthetic aperture are well documented (for example, Chapter 5 of Carrara et al., 1995). The counterpart problem for the stripmap mode is less well developed in the literature. This paper explores the effects of uncompensated phase errors on stripmap imagery and shows that, under certain conditions, they are similar to those for spotlight mode processing.

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Analysis of Phase Error Effects on Stripmap SAS

Abstract

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