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Proceedings Paper

Anti-aliasing filter design on spaceborne digital receiver
Author(s): Danru Yu; Chonghui Zhao
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Paper Abstract

In recent years, with the development of satellite observation technologies, more and more active remote sensing technologies are adopted in spaceborne system. The spaceborne precipitation radar will depend heavily on high performance digital processing to collect meaningful rain echo data. It will increase the complexity of the spaceborne system and need high-performance and reliable digital receiver. This paper analyzes the frequency aliasing in the intermediate frequency signal sampling of digital down conversion in spaceborne radar, and gives an effective digital filter. By analysis and calculation, we choose reasonable parameters of the half-band filters to suppress the frequency aliasing on DDC. Compared with traditional filter, the FPGA resources cost in our system are reduced by over 50%. This can effectively reduce the complexity in the spaceborne digital receiver and improve the reliability of system.

Paper Details

Date Published: 3 April 2010
PDF: 7 pages
Proc. SPIE 7651, International Conference on Space Information Technology 2009, 76512M (3 April 2010); doi: 10.1117/12.855421
Show Author Affiliations
Danru Yu, National Key Lab. of Science and Technology on Millimeter Wave System (China)
Chonghui Zhao, National Key Lab. of Science and Technology on Millimeter Wave System (China)


Published in SPIE Proceedings Vol. 7651:
International Conference on Space Information Technology 2009
Xingrui Ma; Baohua Yang; Ming Li, Editor(s)

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