Title :
An ASIC design for adaptive beamforming
Author :
Hu Guorong ; Yungong, Sun ; Chaohuan, Hou
Author_Institution :
Inst. of Acoust., Acad. Sinica, Beijing, China
Abstract :
Adaptive beamforming is based on the RLS (recursive least squares) algorithm realized by the RLS systolic array (RLSSA) proposed by McWhirter in 1983. The authors use CORDIC (CO-ordinate Rotation Digital Computer) algorithm to implement RLSSA. Only shifting and adding operations are employed to realize all the primitive array´s complex procedure. The authors have specially designed some proposed logic and circuits. After all levels simulation, the layouts based on CMOS 1.2 um technology. The system can reach 2 Mhz sampling rate with robust performance
Keywords :
CMOS integrated circuits; application specific integrated circuits; digital signal processing chips; least squares approximations; systolic arrays; 1.2 micron; ASIC design; CMOS; CORDIC; RLS; adaptive beamforming; adding operations; recursive least squares; sampling rate; shifting; systolic array; Application specific integrated circuits; Array signal processing; CMOS logic circuits; CMOS technology; Computational modeling; Least squares methods; Logic circuits; Logic design; Resonance light scattering; Systolic arrays;
Conference_Titel :
Circuits and Systems, 1991. Conference Proceedings, China., 1991 International Conference on
Conference_Location :
Shenzhen
DOI :
10.1109/CICCAS.1991.184490
