| 摘要: |
| 给出了一种基于VPX架构和ADSP-21469的合成孔径雷达（SAR）实时信号处理机的设
计与实现。处理机分别采用基于FPGA的交换机和各Lane接收缓冲再同步技术解决板内外数据
交换和多Lane Serial RapidI/O同步难点，实现了实时宽带雷达回波中频采样变换和SAR成
像处理。测试表明,该信号处理机比相同处理能力的传统处理机至少减少40 W功耗，并
具有高达1 Gbyte/s的I/O吞吐力。 |
| 关键词: 合成孔径雷达 信号处理 中频采样 数字正交变换 功耗 |
| DOI： |
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| 基金项目: |
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| SAR signal processing system based on VPX and generation-IV Sharc DSP |
| SONG Yu-xia,GAN Feng,CHEN Juan |
| () |
| Abstract: |
| The design and realization of a real-time SAR(Synthetic Aperture Radar) signal p
rocessing system
based on VPX and ADSP-21469 is given. Data transfer inside the system is resolve
d by switch built in FPGA and the synchronization of multi-lane Serial RapidI/
O
is resolved by synchronization after each lane receives and caches data.The re
al
time orthogonal transformation and SAR processing for wide-band IF signal retur
ned to radar is realized. Tests show that the power consumption of th
e system is decreased by 40W compared with traditional signal processing system,
fu
rther more,the system attains 1Gbyte/s I/O throughput rate. |
| Key words: SAR signal processing IF sampling digital orthogonal transformation power consum
ption |
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