Anti-aliasing filter design on spaceborne digital receiver

Danru Yu; Chonghui Zhao

doi:10.1117/12.855421

2 April 2010 Anti-aliasing filter design on spaceborne digital receiver

Danru Yu, Chonghui Zhao

Proceedings Volume 7651, International Conference on Space Information Technology 2009; 76512M (2010) https://doi.org/10.1117/12.855421
Event: International Conference on Space Information Technology 2009, 2009, Beijing, China

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.

Citation Download Citation

Danru Yu and Chonghui Zhao "Anti-aliasing filter design on spaceborne digital receiver", Proc. SPIE 7651, International Conference on Space Information Technology 2009, 76512M (2 April 2010); https://doi.org/10.1117/12.855421

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