Operation mode for topside ionospheric sounding based on space-borne high frequency synthetic aperture radar

Topside ionospheric sounding is significant for scientific research, especially on forecasting of some astronomical disasters. Current ionospheric topside sounding radars have low range resolution of tens of kilometers, but nearly have no azimuth resolution. The concept of synthetic aperture radar (...

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Hauptverfasser:	Chen, Jie, Liu, Wei, Zhou, Yinqing, Li, Chunsheng
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Azimuth Electrons Frequency Ionosphere Radar antennas Radar scattering Radar signal processing Satellite broadcasting Signal resolution Spaceborne radar
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creator	Chen, Jie Liu, Wei Zhou, Yinqing Li, Chunsheng
description	Topside ionospheric sounding is significant for scientific research, especially on forecasting of some astronomical disasters. Current ionospheric topside sounding radars have low range resolution of tens of kilometers, but nearly have no azimuth resolution. The concept of synthetic aperture radar (SAR) is introduced to topside ionospheric sounding for improving the azimuth resolution. The operation mode based on space-borne high frequency SAR (HF-SAR) is presented in this paper. Theoretical analysis indicates that the azimuth resolution can be improved to tens of meters. The satellite orbit parameters are selected, and the main parameters of the radar system are preliminarily designed. The technique of Displaced Phase Centers Antenna (DPCA) is utilized to solve the confliction between the radar detection range and the pulse repetition frequency.
doi_str_mv	10.1109/APSAR.2007.4418541
format	Conference Proceeding
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Current ionospheric topside sounding radars have low range resolution of tens of kilometers, but nearly have no azimuth resolution. The concept of synthetic aperture radar (SAR) is introduced to topside ionospheric sounding for improving the azimuth resolution. The operation mode based on space-borne high frequency SAR (HF-SAR) is presented in this paper. Theoretical analysis indicates that the azimuth resolution can be improved to tens of meters. The satellite orbit parameters are selected, and the main parameters of the radar system are preliminarily designed. The technique of Displaced Phase Centers Antenna (DPCA) is utilized to solve the confliction between the radar detection range and the pulse repetition frequency.</abstract><pub>IEEE</pub><doi>10.1109/APSAR.2007.4418541</doi><tpages>5</tpages></addata></record>
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source	IEEE Electronic Library (IEL) Conference Proceedings
subjects	Azimuth Electrons Frequency Ionosphere Radar antennas Radar scattering Radar signal processing Satellite broadcasting Signal resolution Spaceborne radar
title	Operation mode for topside ionospheric sounding based on space-borne high frequency synthetic aperture radar
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