Sequence CLEAN: A modified deconvolution technique for microwave images of contiguous targets

Ranjan Bose; Avraham Freedman; Bernard D. Steinberg

doi:10.1109/7.993231

Sequence CLEAN: A modified deconvolution technique for microwave images of contiguous targets

Ranjan Bose, Avraham Freedman, Bernard D. Steinberg

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

133 Scopus citations

Abstract

High resolution range profiles usually suffer from range sidelobe artifacts which cause reduction in the dynamic range. The sidelobes can be greatly reduced by a deconvolution technique called Coherent CLEAN. The Coherent CLEAN algorithm is based on the assumption that the scene consists of isolated and independent targets. However, many real-life targets are contiguous. Even if we approximate the contiguous targets by very closely spaced point sources, they can hardly be assumed to radiate independently. The sidelobes and the mainlobes of these closely spaced point sources can interact constructively and destructively causing spurious peaks and peak mislocations. These problems are studied and a variation in the existing Coherent CLEAN algorithm, called Sequence CLEAN, is proposed. Sequence CLEAN is found to work well with actual targets.

Original language	English
Pages (from-to)	89-97
Number of pages	9
Journal	IEEE Transactions on Aerospace and Electronic Systems
Volume	38
Issue number	1
DOIs	https://doi.org/10.1109/7.993231
State	Published - Jan 2002
Externally published	Yes

Funding

This work is supported by Grant N00014-93-0104 from the Office of Naval Research.

Funders	Funder number
Office of Naval Research

Access to Document

10.1109/7.993231

Cite this

@article{85e56a709ee341b48246de4a7b4150c0,

title = "Sequence CLEAN: A modified deconvolution technique for microwave images of contiguous targets",

abstract = "High resolution range profiles usually suffer from range sidelobe artifacts which cause reduction in the dynamic range. The sidelobes can be greatly reduced by a deconvolution technique called Coherent CLEAN. The Coherent CLEAN algorithm is based on the assumption that the scene consists of isolated and independent targets. However, many real-life targets are contiguous. Even if we approximate the contiguous targets by very closely spaced point sources, they can hardly be assumed to radiate independently. The sidelobes and the mainlobes of these closely spaced point sources can interact constructively and destructively causing spurious peaks and peak mislocations. These problems are studied and a variation in the existing Coherent CLEAN algorithm, called Sequence CLEAN, is proposed. Sequence CLEAN is found to work well with actual targets.",

author = "Ranjan Bose and Avraham Freedman and Steinberg, {Bernard D.}",

year = "2002",

month = jan,

doi = "10.1109/7.993231",

language = "English",

volume = "38",

pages = "89--97",

journal = "IEEE Transactions on Aerospace and Electronic Systems",

issn = "0018-9251",

publisher = "Institute of Electrical and Electronics Engineers",

number = "1",

}

TY - JOUR

T1 - Sequence CLEAN

T2 - A modified deconvolution technique for microwave images of contiguous targets

AU - Bose, Ranjan

AU - Freedman, Avraham

AU - Steinberg, Bernard D.

PY - 2002/1

Y1 - 2002/1

N2 - High resolution range profiles usually suffer from range sidelobe artifacts which cause reduction in the dynamic range. The sidelobes can be greatly reduced by a deconvolution technique called Coherent CLEAN. The Coherent CLEAN algorithm is based on the assumption that the scene consists of isolated and independent targets. However, many real-life targets are contiguous. Even if we approximate the contiguous targets by very closely spaced point sources, they can hardly be assumed to radiate independently. The sidelobes and the mainlobes of these closely spaced point sources can interact constructively and destructively causing spurious peaks and peak mislocations. These problems are studied and a variation in the existing Coherent CLEAN algorithm, called Sequence CLEAN, is proposed. Sequence CLEAN is found to work well with actual targets.

AB - High resolution range profiles usually suffer from range sidelobe artifacts which cause reduction in the dynamic range. The sidelobes can be greatly reduced by a deconvolution technique called Coherent CLEAN. The Coherent CLEAN algorithm is based on the assumption that the scene consists of isolated and independent targets. However, many real-life targets are contiguous. Even if we approximate the contiguous targets by very closely spaced point sources, they can hardly be assumed to radiate independently. The sidelobes and the mainlobes of these closely spaced point sources can interact constructively and destructively causing spurious peaks and peak mislocations. These problems are studied and a variation in the existing Coherent CLEAN algorithm, called Sequence CLEAN, is proposed. Sequence CLEAN is found to work well with actual targets.

UR - http://www.scopus.com/inward/record.url?scp=0036245771&partnerID=8YFLogxK

U2 - 10.1109/7.993231

DO - 10.1109/7.993231

M3 - Article

AN - SCOPUS:0036245771

SN - 0018-9251

VL - 38

SP - 89

EP - 97

JO - IEEE Transactions on Aerospace and Electronic Systems

JF - IEEE Transactions on Aerospace and Electronic Systems

IS - 1

ER -

Sequence CLEAN: A modified deconvolution technique for microwave images of contiguous targets

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this