Real time estimation of space-borne SAR signal parameter using FrFT

Guang Yang; Shao Bin Li; Yi Cheng Jiang

doi:10.3969/j.issn.1001-506X.2010.08.20

Real time estimation of space-borne SAR signal parameter using FrFT

Guang Yang^*
, Shao Bin Li
, Yi Cheng Jiang

^*Corresponding author for this work

School of Electronics and Information Engineering, Harbin Institute of Technology

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

4 Scopus citations

Abstract

A new method based on fractional Fourier transform (FrFT) is put forward to solve the problem of real-time parameter estimation of space-borne synthetic aperture radar (SAR) signals. The concept of FrFT and its estimation theory of chirp signals are introduced firstly. Then, after analyzing the feature of SAR flight, real-time parameters estimation are carried out respectively to cases of single pulse and pulse trains. FrFT is firstly applied to single pulse in the received signals, which can estimate the carrier frequency and rate of SAR signal. Then, FrFT is applied to pulse trains, which can estimate the azimuth rate of SAR signals. Theoretical analysis and numerical simulations show high accuracy of this method.

Original language	English
Pages (from-to)	1649-1651+1656
Journal	Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics
Volume	32
Issue number	8
DOIs	https://doi.org/10.3969/j.issn.1001-506X.2010.08.20
State	Published - Aug 2010
Externally published	Yes

Keywords

Fractional Fourier transform (FrFT)
Real-time estimation
Space-borne synthetic aperture radar (SAR)

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10.3969/j.issn.1001-506X.2010.08.20

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title = "Real time estimation of space-borne SAR signal parameter using FrFT",

abstract = "A new method based on fractional Fourier transform (FrFT) is put forward to solve the problem of real-time parameter estimation of space-borne synthetic aperture radar (SAR) signals. The concept of FrFT and its estimation theory of chirp signals are introduced firstly. Then, after analyzing the feature of SAR flight, real-time parameters estimation are carried out respectively to cases of single pulse and pulse trains. FrFT is firstly applied to single pulse in the received signals, which can estimate the carrier frequency and rate of SAR signal. Then, FrFT is applied to pulse trains, which can estimate the azimuth rate of SAR signals. Theoretical analysis and numerical simulations show high accuracy of this method.",

keywords = "Fractional Fourier transform (FrFT), Real-time estimation, Space-borne synthetic aperture radar (SAR)",

author = "Guang Yang and Li, \{Shao Bin\} and Jiang, \{Yi Cheng\}",

year = "2010",

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doi = "10.3969/j.issn.1001-506X.2010.08.20",

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journal = "Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics",

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publisher = "Chinese Institute of Electronics",

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T1 - Real time estimation of space-borne SAR signal parameter using FrFT

AU - Yang, Guang

AU - Li, Shao Bin

AU - Jiang, Yi Cheng

PY - 2010/8

Y1 - 2010/8

N2 - A new method based on fractional Fourier transform (FrFT) is put forward to solve the problem of real-time parameter estimation of space-borne synthetic aperture radar (SAR) signals. The concept of FrFT and its estimation theory of chirp signals are introduced firstly. Then, after analyzing the feature of SAR flight, real-time parameters estimation are carried out respectively to cases of single pulse and pulse trains. FrFT is firstly applied to single pulse in the received signals, which can estimate the carrier frequency and rate of SAR signal. Then, FrFT is applied to pulse trains, which can estimate the azimuth rate of SAR signals. Theoretical analysis and numerical simulations show high accuracy of this method.

AB - A new method based on fractional Fourier transform (FrFT) is put forward to solve the problem of real-time parameter estimation of space-borne synthetic aperture radar (SAR) signals. The concept of FrFT and its estimation theory of chirp signals are introduced firstly. Then, after analyzing the feature of SAR flight, real-time parameters estimation are carried out respectively to cases of single pulse and pulse trains. FrFT is firstly applied to single pulse in the received signals, which can estimate the carrier frequency and rate of SAR signal. Then, FrFT is applied to pulse trains, which can estimate the azimuth rate of SAR signals. Theoretical analysis and numerical simulations show high accuracy of this method.

KW - Fractional Fourier transform (FrFT)

KW - Real-time estimation

KW - Space-borne synthetic aperture radar (SAR)

UR - https://www.scopus.com/pages/publications/77955989133

U2 - 10.3969/j.issn.1001-506X.2010.08.20

DO - 10.3969/j.issn.1001-506X.2010.08.20

M3 - 文章

AN - SCOPUS:77955989133

SN - 1001-506X

VL - 32

SP - 1649-1651+1656

JO - Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics

JF - Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics

IS - 8

ER -

Real time estimation of space-borne SAR signal parameter using FrFT

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Keywords

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