合成孔径雷达数据传输系统失真分析
THE DISTORTION ANALYSIS OF SAR DATA LINK SYSTEM
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摘要: 本文推导了合成孔径雷达数据传输系统视频转发信号的频谱特性。利用数传信号二维谱分析了数传系统幅频失真、相频失真对合成孔径雷达距离向、方位向压缩性能的影响。这一分析已成功地应用于机载多条带多极化合成孔径雷达数据传输系统的研制中。
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关键词:
- 合成孔径雷达; 数据传输; 失真分析
Abstract: The frequency spectrum characteristics of SAR data link signals were derived. By means of two dimensional spectrum of SAR data link signal,the effects of the amplitude-frequency distortion and phase-frequency distortion in SAR data link system on SAR range and azmuth compressing performance were analysed. This analysis had been used in airborne SAR data link system design successfully. -
Ulaby F T, Moore R K, Fung K. Microwave Remote Sensing. vol.H. 630-639, Ontario Canada: Addison-Wosley Pubishing Comanxy, 1982.[2]Harger R O. Synthetic Aperture Radar System Theory and Design. New York, London: Academic Press, 1980, 59-75.[3]张直中.合成孔径,逆合成孔径和成象雷达.现代雷达,1985, 6(6): 95.[4]林茂庸,柯有安.雷达信号理论.北京:国防工业出版社,1981,125-136. -
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