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Journal of Applied Remote Sensing

Study on an onboard data storage system for frequency-modulated continuous-wave synthetic aperture radar
Author(s): Haishan Tian; Wenge Chang; Xiangyang Li; Chengfei Gu; Zhaohe Liu
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Paper Abstract

The airborne frequency-modulated continuous-wave synthetic aperture radar presents an enormous technical challenge on the design of data storage system due to its characteristics of high-data rate, small size, light weight, and low-power consumption. There are two main problems for the high-speed storage under the miniature requirement. One is the unpredictable response time of the flash translation layer in the CompactFlash card. The other is the relatively long response time of the file system. This paper designs a data storage system in a real-time signal processor. Two techniques called configurable buffer structure and FPFQA (FAT pre- and FDT quasiallocation) are presented to overcome these two problems. The evaluated performance indicates that the size, power consumption, and weight meet the miniature requirement, while the function of the high-speed data storage with approximately 121  MB/s storage speed and real-time file management are realized.

Paper Details

Date Published: 6 July 2016
PDF: 11 pages
J. Appl. Remote Sens. 10(3) 034001 doi: 10.1117/1.JRS.10.034001
Published in: Journal of Applied Remote Sensing Volume 10, Issue 3
Show Author Affiliations
Haishan Tian, National Univ. of Defense Technology (China)
Wenge Chang, National Univ. of Defense Technology (China)
Xiangyang Li, National Univ. of Defense Technology (China)
Chengfei Gu, National Univ. of Defense Technology (China)
Zhaohe Liu, Science and Technology on Near-Surface Detection Lab. (China)


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