Use of Block adaptive polar quantizer for synthetic aperture radar raw data compression

Weiqiang Zheng; Zhiqin Zhao; ShunJi Huang

doi:10.1117/12.281574

28 July 1997 Use of Block adaptive polar quantizer for synthetic aperture radar raw data compression

Weiqiang Zheng, Zhiqin Zhao, ShunJi Huang

Proceedings Volume 3070, Algorithms for Synthetic Aperture Radar Imagery IV; (1997) https://doi.org/10.1117/12.281574
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

Synthetic aperture radar (SAR) is getting more and more wide use in many areas. To lower the bit-flow will benefit both the communication and storage of raw data. Megellan SAR used a block adaptive quantization (BAQ) method. It estimates the statistics of the source and attempts to match the quantizer to the observed time-varying statistics. Because of its simplicity and effectiveness, many other SAR also used the BAQ algorithm. In this paper we use the polar quantizer instead of the quadrature quantizer in BAQ. Two kinds of polar quantizer are introduced and tested with X-SAR raw data.

Citation Download Citation

Weiqiang Zheng, Zhiqin Zhao, and ShunJi Huang "Use of Block adaptive polar quantizer for synthetic aperture radar raw data compression", Proc. SPIE 3070, Algorithms for Synthetic Aperture Radar Imagery IV, (28 July 1997); https://doi.org/10.1117/12.281574

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