Title :
FPGA implementation of a demux based on a multirate filter bank
Author :
Re, Andrea Del ; Cardarilli, Gian Carlo ; Del Re, A. ; Lojacono, Roberto
Author_Institution :
Dept. of Electron. Eng., Rome Univ., Italy
Abstract :
In this paper an extensive comparison among alternative algorithms for the implementation of a digital demultiplexer has been carried out. The computational complexity, the performances and the accuracy with respect to the quantization noise effects have been evaluated for the different algorithms. In particular, the digital architecture has been designed to replace an analog filter bank composed of six surface acoustic wave (SAW) devices. This implementation is used, at present, by Alenia Space Division in the Eutelsat Hot-Bird satellites. The obtained digital architecture has been mapped on six Altera Flex 10K-100 devices. The final test bed, that includes a complete interface to the Alenia demodulator, has been implemented on a four-layers PCB
Keywords :
channel bank filters; computational complexity; demultiplexing equipment; digital filters; field programmable gate arrays; quantisation (signal); Altera Flex 10K-100 devices; Eutelsat Hot-Bird satellites; FPGA implementation; computational complexity; digital architecture; digital demultiplexer; multirate filter bank; quantization noise effects; test bed; Acoustic noise; Acoustic waves; Computational complexity; Computer architecture; Field programmable gate arrays; Filter bank; Performance evaluation; Quantization; Surface acoustic wave devices; Surface acoustic waves;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.857437
