タイトル | A Study of Linear Approximation Techniques for SAR Azimuth Processing |
本文(外部サイト) | http://hdl.handle.net/2060/19790012128 |
著者(英) | Perry, R. P.; Martinson, L. W.; Liu, B. |
著者所属(英) | RCA Government Systems Div. |
発行日 | 1979-02-01 |
言語 | eng |
内容記述 | The application of the step transform subarray processing techniques to synthetic aperture radar (SAR) was studied. The subarray technique permits the application of efficient digital transform computational techniques such as the fast Fourier transform to be applied while offering an effective tool for range migration compensation. Range migration compensation is applied at the subarray level, and with the subarray size based on worst case range migration conditions, a minimum control system is achieved. A baseline processor was designed for a four-look SAR system covering approximately 4096 by 4096 SAR sample field every 2.5 seconds. Implementation of the baseline system was projected using advanced low power technologies. A 20 swath is implemented with approximately 1000 circuits having a power dissipation of from 70 to 195 watts. The baseline batch step transform processor is compared to a continuous strip processor, and variations of the baseline are developed for a wide range of SAR parameters. |
NASA分類 | COMMUNICATIONS AND RADAR |
レポートNO | 79N20299 NASA-CR-158375 |
権利 | No Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/71913 |