摘要
Obtaining Doppler center frequency parameters estimation (DCFPE) with low time consumption is a great challenge in synthetic aperture radar (SAR) imaging system. In order to get DCFPE in real time, this paper adopts three parallel acceleration implementation methods-SIMD parallelism, multi-issue parallelism and multi-core parallelism-according to the characteristics of DCFPE algorithm. To verify the efficiency of the proposed methods, the paper builds the ARM embedded Linux system on multi-core ARM Cortex-A9 platform and uses assembly programming language to implement DCFPE algorithm in a 16384*16384 64-bit SAR imaging process. The experiment shows that DCFPE can be accelerated by more than 50% on average with an acceptable accuracy of the result.
| 源语言 | 英语 |
|---|---|
| 出版状态 | 已出版 - 2017 |
| 活动 | 2017 International Conference on Radar Systems, Radar 2017 - Belfast, 英国 期限: 23 10月 2017 → 26 10月 2017 |
会议
| 会议 | 2017 International Conference on Radar Systems, Radar 2017 |
|---|---|
| 国家/地区 | 英国 |
| 市 | Belfast |
| 时期 | 23/10/17 → 26/10/17 |
学术指纹
探究 'SAR doppler center frequency parameters estimation parallel optimization based on multi-core ARM NEON technology' 的科研主题。它们共同构成独一无二的学术指纹。引用此
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