NSSC OpenIR
综合孔径辐射计的分布式高速数采设计
Alternative TitleDesign of Distributed High Speed Data Acquisition System in Synthetic Aperture Radiometer
毛戌宁; 陆浩; 刘浩
Source Publication遥感技术与应用
2020
Volume35Issue:3Pages:656-663; AR:1004-0323(2020)35:3<656:ZHKJFS>2.0.TX;2-4
ISSN1004-0323
Language中文
Keyword综合孔径辐射计 分布式 高速光纤链路 同步采集 Synthetic aperture radiometer Distributed High-speed optical fiber link Synchronous sampling
Abstract随着综合孔径辐射计对高分辨率的需求提高,信号采集通道规模迅速上升,达到数十路甚至数百路。由此提出一种分布式信号采样及处理系统,同时设计了基于分布式相关系统的高速数据采集传输网络,通道数24路,采样率60 Msps。硬件上基于分布式多级分发的思路设计了时钟链路以实现数字同步采样,经测试通道间相位延迟小于1.5°;以FPGA内置的Rocket I/O收发器为物理层,实现多数字采样阵面与后端相关单元间的高速光纤链路,结果显示误码率低于10-7。该系统稳定性高、可靠性强,能满足大规模综合孔径辐射计的需求。
Other AbstractWith the increasing demand of synthetic aperture radiometer for high resolution,the scale of signal acquisition channels has risen rapidly,reaching tens or even hundreds of channels. In this paper,a distributed signal sampling and processing system is proposed. At the same time,a high-speed data acquisition and transmission network based on distributed correlation system is designed,with 24 channels and 60 Msps sampling rate. On the hardware,a clock link is designed based on Distributed Multi-level distribution to realize digital synchronous sampling,and the test results show that the phase delay between channels is less than 1.5 degrees. In order to realize the high-speed optical fiber link between the multi-digital sampling array and the back-end correlation units,the Racket I/O transceiver built in the FPGA is used as the physical layer,and the test results show that the bit error rate is lower than 10-7.The system has high stability and reliability,and is suitable for requirements of large-scale synthetic aperture radiometers.
Indexed ByCSCD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7422
Collection中国科学院国家空间科学中心
Affiliation1.毛戌宁, 中国科学院国家空间科学中心
2.中国科学院国家空间科学中心
3.中国科学院大学, 中国科学院微波遥感技术重点实验室
4.北京 100190
5.100190
6.100049, 中国.
7.陆浩, 中国科学院国家空间科学中心
8.中国科学院国家空间科学中心, 中国科学院微波遥感技术重点实验室
9.北京
10.北京 100190
11.100190, 中国.
12.刘浩, 中国科学院国家空间科学中心
13.中国科学院国家空间科学中心, 中国科学院微波遥感技术重点实验室
14.北京
15.北京 100190
16.100190, 中国.
17.Mao Xuning, Key Laboratory of Microwave Remote Sensing Technology,Chinese Academy of Sciences
18.National Space Science Center,Chinese Academy of Sciences
19.University of Chinese Academy of Sciences, Key Laboratory of Microwave Remote Sensing Technology,Chinese Academy of Sciences
20., Beijing
21.Beijing
22.Beijing 100190
23.100190
24.100049.
25.Lu Hao, Key Laboratory of Microwave Remote Sensing Technology,Chinese Academy of Sciences
26.National Space Science Center,Chinese Academy of Sciences, Key Laboratory of Microwave Remote Sensing Technology,Chinese Academy of Sciences
27.Beijing
28.Beijing 100190
29.100190.
30.Liu Hao, Key Laboratory of Microwave Remote Sensing Technology,Chinese Academy of Sciences
31.National Space Science Center,Chinese Academy of Sciences, Key Laboratory of Microwave Remote Sensing Technology,Chinese Academy of Sciences
32.Beijing
33.Beijing 100190
34.100190.
35.1520046505@qq.com
36.liuhao@mirslab.cn
Recommended Citation
GB/T 7714
毛戌宁,陆浩,刘浩. 综合孔径辐射计的分布式高速数采设计[J]. 遥感技术与应用,2020,35(3):656-663; AR:1004-0323(2020)35:3<656:ZHKJFS>2.0.TX;2-4.
APA 毛戌宁,陆浩,&刘浩.(2020).综合孔径辐射计的分布式高速数采设计.遥感技术与应用,35(3),656-663; AR:1004-0323(2020)35:3<656:ZHKJFS>2.0.TX;2-4.
MLA 毛戌宁,et al."综合孔径辐射计的分布式高速数采设计".遥感技术与应用 35.3(2020):656-663; AR:1004-0323(2020)35:3<656:ZHKJFS>2.0.TX;2-4.
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