A novel method of ISAR imaging for high speed targets using stepped-frequency chirp waveform

A novel method of ISAR imaging for high speed targets using stepped-frequency chirp waveform

In this work, a method of ISAR imaging is proposed for high speed targets using stepped-frequency chirp signal. Keystone formatting is applied among pulses which have identical carrier frequency to eliminate range migration. The range-Doppler coupling and range-profile broadening is compensated by m...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Lizhi Zhao, Jianchao Mu, Xiong jun Fu, Meiguo Gao
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Chirp
Doppler effect
Image resolution
Imaging
ISAR
Keystone formatting
Radar imaging
Signal to noise ratio
stepped-frequency
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Beschreibung
Zusammenfassung:In this work, a method of ISAR imaging is proposed for high speed targets using stepped-frequency chirp signal. Keystone formatting is applied among pulses which have identical carrier frequency to eliminate range migration. The range-Doppler coupling and range-profile broadening is compensated by means of processing via Doppler channel division. Simulation results demonstrate the effectivity and adaptability in low SNR condition.
ISSN:1097-5764
2640-7736
DOI:10.1109/CIE-Radar.2011.6159871