DocumentCode :
3231002
Title :
Systolic-array 3D wave-digital beam filters
Author :
Madanayake, Arjuna ; Bruton, Len T.
Author_Institution :
Electr. & Comput. Eng., Univ. of Akron, Akron, OH, USA
fYear :
2010
fDate :
6-9 Dec. 2010
Firstpage :
1055
Lastpage :
1058
Abstract :
3D IIR beam/cone filter-banks are derived from beam transfer functions of 2D/3D LC-ladder low-pass networks. Such filters are obtained using 3D frequency-planar filters as building blocks, and lead to highly-selective RF beamforming capabilities over wide bandwidths. High computational complexity necessitates high-performance computational hardware for useful throughput. A massively-parallel systolic-array hardware architecture is proposed for the FPGA-based hardware acceleration of arbitrary-order spatial frequency-planar beam broadband digital filters. The proposed architecture is based on multidimensional wave-digital-filters, and leads to a synchronous systolic-array of locally interconnected parallel processing core modules (PPCMs), which enable 3D beam filtering at a throughput of one frame per clock cycle. An example using a Xilinx Virtex-4 Sx35 FPGA, for a 6×6 array of PPCMs, is described.
Keywords :
IIR filters; array signal processing; channel bank filters; computational complexity; field programmable gate arrays; low-pass filters; systolic arrays; 2D/3D LC-ladder low-pass networks; 3D IIR beam/cone filter-banks; 3D frequency-planar filters; 3D wave-digital beam filters; FPGA-based hardware acceleration; PPCM; Xilinx Virtex-4; arbitrary-order spatial frequency-planar beam; beam transfer functions; broadband digital filters; computational complexity; highly-selective RF beamforming; locally interconnected parallel processing core modules; massively-parallel systolic-array hardware architecture; multidimensional wave-digital-filters; Acoustics; Circuits and systems; Niobium; Speech; Speech processing; Yttrium; DSP; FPGA; multidimensional; wave digital filter;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems (APCCAS), 2010 IEEE Asia Pacific Conference on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4244-7454-7
Type :
conf
DOI :
10.1109/APCCAS.2010.5774972
Filename :
5774972
Link To Document :
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