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An improved model of HF-SAR for estimating surface current velocity

With the requirement of surface current extraction by a single station of high frequency surface wave radar, high frequency SAR (HF-SAR) is proposed and proved to be theoretically feasible. However the old model of HF-SAR is not perfect enough and there are several drawbacks such as Bragg scattering...

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Main Authors:	Huibin Peng, Wenhu Xue, Sanwen Zhu, Guishui Yu
Format:	Conference Proceeding
Language:	English
Subjects:	Chirp Frequency estimation HF Surface Wave Iterative algorithms Iterative methods Parameter estimation Radar scattering Radar theory SAR Sea surface surface current Surface waves Synthetic aperture radar velocity estimation
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creator	Huibin Peng Wenhu Xue Sanwen Zhu Guishui Yu
description	With the requirement of surface current extraction by a single station of high frequency surface wave radar, high frequency SAR (HF-SAR) is proposed and proved to be theoretically feasible. However the old model of HF-SAR is not perfect enough and there are several drawbacks such as Bragg scattering not included, high computation burden and implementation difficulty. Thus in this paper we present an improved model of HF-SAR to overcome the previous drawbacks. For the improved model, Bragg frequency is introduced into the echo signal and an iterative approach to estimate parameters of chirp signals is adopted for velocity estimation algorithms. Also an implementation scheme of HF-SAR on the sea is proposed. Simulation results with the improved model show that the precision of surface current velocity estimation is high enough to meet practical requirements.
doi_str_mv	10.1109/APSAR.2007.4418722
format	conference_proceeding
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Simulation results with the improved model show that the precision of surface current velocity estimation is high enough to meet practical requirements.</description><subject>Chirp</subject><subject>Frequency estimation</subject><subject>HF Surface Wave</subject><subject>Iterative algorithms</subject><subject>Iterative methods</subject><subject>Parameter estimation</subject><subject>Radar scattering</subject><subject>Radar theory</subject><subject>SAR</subject><subject>Sea surface</subject><subject>surface current</subject><subject>Surface waves</subject><subject>Synthetic aperture radar</subject><subject>velocity estimation</subject><isbn>9781424411870</isbn><isbn>1424411874</isbn><isbn>9781424411887</isbn><isbn>1424411882</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2007</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><recordid>eNpVj8tqwzAURFVKoSX1D7Qb_YBd6cr2lZbGNE0h0NLHOsjyVVHxI8hOIH9fQ7PJLGY4m2GGsQcpMimFeareP6uPDITALM-lRoArlhjUMoeFpdZ4fcEoblkyTb9ikTKlQn3H6mrgod_H8Ugt78eWOj56vlmnSzX3Y-Q0zaG3cxh--HSI3jri7hAjDTM_Uje6MJ_u2Y233UTJOVfse_38VW_S7dvLa11t0yCxmFMisE5ZUbQeCGRTOAm5Fw4dONVag6gtINnWeNkAmKYpFzN5iRq1so1ascf_3kBEu31cdsXT7nxd_QGIVUxg</recordid><startdate>200711</startdate><enddate>200711</enddate><creator>Huibin Peng</creator><creator>Wenhu Xue</creator><creator>Sanwen Zhu</creator><creator>Guishui Yu</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>200711</creationdate><title>An improved model of HF-SAR for estimating surface current velocity</title><author>Huibin Peng ; Wenhu Xue ; Sanwen Zhu ; Guishui Yu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i175t-ee2ac3a05df2e21b5c124f0c7c2c3da9778a27ead9f1b229bb629b94678783ab3</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Chirp</topic><topic>Frequency estimation</topic><topic>HF Surface Wave</topic><topic>Iterative algorithms</topic><topic>Iterative methods</topic><topic>Parameter estimation</topic><topic>Radar scattering</topic><topic>Radar theory</topic><topic>SAR</topic><topic>Sea surface</topic><topic>surface current</topic><topic>Surface waves</topic><topic>Synthetic aperture radar</topic><topic>velocity estimation</topic><toplevel>online_resources</toplevel><creatorcontrib>Huibin Peng</creatorcontrib><creatorcontrib>Wenhu Xue</creatorcontrib><creatorcontrib>Sanwen Zhu</creatorcontrib><creatorcontrib>Guishui Yu</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEL</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Huibin Peng</au><au>Wenhu Xue</au><au>Sanwen Zhu</au><au>Guishui Yu</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>An improved model of HF-SAR for estimating surface current velocity</atitle><btitle>2007 1st Asian and Pacific Conference on Synthetic Aperture Radar</btitle><stitle>APSAR</stitle><date>2007-11</date><risdate>2007</risdate><spage>760</spage><epage>765</epage><pages>760-765</pages><isbn>9781424411870</isbn><isbn>1424411874</isbn><eisbn>9781424411887</eisbn><eisbn>1424411882</eisbn><abstract>With the requirement of surface current extraction by a single station of high frequency surface wave radar, high frequency SAR (HF-SAR) is proposed and proved to be theoretically feasible. However the old model of HF-SAR is not perfect enough and there are several drawbacks such as Bragg scattering not included, high computation burden and implementation difficulty. Thus in this paper we present an improved model of HF-SAR to overcome the previous drawbacks. For the improved model, Bragg frequency is introduced into the echo signal and an iterative approach to estimate parameters of chirp signals is adopted for velocity estimation algorithms. Also an implementation scheme of HF-SAR on the sea is proposed. Simulation results with the improved model show that the precision of surface current velocity estimation is high enough to meet practical requirements.</abstract><pub>IEEE</pub><doi>10.1109/APSAR.2007.4418722</doi><tpages>6</tpages></addata></record>
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identifier	ISBN: 9781424411870
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subjects	Chirp Frequency estimation HF Surface Wave Iterative algorithms Iterative methods Parameter estimation Radar scattering Radar theory SAR Sea surface surface current Surface waves Synthetic aperture radar velocity estimation
title	An improved model of HF-SAR for estimating surface current velocity
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