An FPGA-based Doppler processor for a spaceborne precipitation radar

被引：0

作者：

Durden, S. L. ^{[1
]}

Fischman, M. A. ^{[1
]}

Johnson, R. A. ^{[1
]}

Chu, A. J. ^{[1
]}

Jourdan, M. N. ^{[1
]}

Tanelli, S. ^{[1
]}

机构：

[1] CALTECH, Jet Propuls Lab, Pasadena, CA 91109 USA

来源：

JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY | 2007年 / 24卷 / 10期

关键词：

D O I：

10.1175/JTECH2086.1

中图分类号：

P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Measurement of precipitation Doppler velocity by spaceborne radar is complicated by the large velocity of the satellite platform. Even if successive pulses are well correlated, the velocity measurement may be biased if the precipitation target does not uniformly fill the radar footprint. It has been previously shown that the bias in such situations can be reduced if full spectral processing is used. The authors present a processor based on field-programmable gate array (FPGA) technology that can be used for spectral processing of data acquired by future spaceborne precipitation radars. The requirements for and design of the Doppler processor are addressed. Simulation and laboratory test results show that the processor can meet real-time constraints while easily fitting in a single FPGA.

引用

页码：1811 / 1815

页数：5

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