TY - GEN
T1 - Pipelined CORDIC based QRD-MVDR adaptive beamforming
AU - Ma, Jun
AU - Parhi, Keshab K.
AU - Deprettere, Ed F.
PY - 1998
Y1 - 1998
N2 - Cordic based QRD-MVDR adaptive beamforming algorithms possess desirable properties for VLSI implementation such as regularity and good finite-word length behavior. But this algorithm suffers from a speed limitation constraint due to the presence of recursive operations in the algorithm. In this paper, a fine-grain pipelined CORDIC based QRD-MVDR adaptive beamforming algorithm is developed using the matrix lookahead technique. The proposed architecture can operate at arbitrarily high sample rates, and consists of only Givens rotations which can be mapped onto a Jacobi specific dataflow processor. It requires a complexity of O(M(p/sup 2/+Kp)) Givens rotations per sample time, where p is the number of antenna elements, K is the number of look direction constrains, and M is the pipelining level.
AB - Cordic based QRD-MVDR adaptive beamforming algorithms possess desirable properties for VLSI implementation such as regularity and good finite-word length behavior. But this algorithm suffers from a speed limitation constraint due to the presence of recursive operations in the algorithm. In this paper, a fine-grain pipelined CORDIC based QRD-MVDR adaptive beamforming algorithm is developed using the matrix lookahead technique. The proposed architecture can operate at arbitrarily high sample rates, and consists of only Givens rotations which can be mapped onto a Jacobi specific dataflow processor. It requires a complexity of O(M(p/sup 2/+Kp)) Givens rotations per sample time, where p is the number of antenna elements, K is the number of look direction constrains, and M is the pipelining level.
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U2 - 10.1109/ICASSP.1998.678163
DO - 10.1109/ICASSP.1998.678163
M3 - Conference contribution
AN - SCOPUS:0031636939
SN - 0780344286
SN - 9780780344280
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 3025
EP - 3028
BT - Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
T2 - 1998 23rd IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 1998
Y2 - 12 May 1998 through 15 May 1998
ER -