Discussion on Designing Spaceborne SAR system with   Dawn Parallel Processing System

TANG Zhen  yu; WANG  Zhen  Song

doi:10.11834/jrs.20000201

Views : 0 下载量: 1471 CSCD: 1

PDF
Export
Share
Collection
Album

Discussion on Designing Spaceborne SAR system with Dawn Parallel Processing System
Issue 2, Pages: 83-89(2000)
Published：2000
DOI： 10.11834/jrs.20000201
稿件说明：

移动端阅览

[1]汤振宇,王贞松.用曙光并行机辅助星载SAR系统中一些问题的设计[J].遥感学报,2000(02):83-89. DOI： 10.11834/jrs.20000201.

TANG Zhen yu, WANG Zhen Song. Discussion on Designing Spaceborne SAR system with Dawn Parallel Processing System[J]. Journal of Remote Sensing, 2000, (2): 83-89. DOI： 10.11834/jrs.20000201.

摘要

介绍了星载合成孔径雷达（SSAR）的工作原理

详细讨论了星载SAR的系统设计。其中着重讨论了脉冲重复频率（PRF）的选择、它与多普勒带宽的关系、发射干扰与星下点干扰的影响、距离模型、方位模型、地面测绘带宽、数据传输速率等问题。为了对SSAR产生的大容量数据进行处理

我们介绍了曙光 10 0 0并行机

并利用它对星载SAR进行了系统仿真的并行处理

给出了仿真结果

验证了系统设计的正确性。

Abstract

This paper introduces the operational principle of Spaceborne Synthetic Aperture Radar （SSAR）. The System Design Project of SSAR is discussed here in detail. The most important factors in the design are related with the selection of Pulse Repeating Frequency （PRF）

Doppler bandwidth

transmit and nadir interference restriction

range and azimuth ambiguity

ground swath

data transfer rate etc. Because SSAR generates a large volume of data

we can’t process these data with ordinary computer. DAWN 1000 Parallel Processing System is introduced and utilized to simulate the SSAR system. Finally

the simulation result is given

which proves the correctness of the SSAR System Design Project.

关键词

Keywords

references

Alert me when the article has been cited

提交

Development and application of the field imaging spectrometer system