TY - GEN
T1 - Improved orchard-elliott pattern synthesis algorithm by pseudo-inverse and LMS
AU - Levy, Shuki
AU - Shavit, Reuven
N1 - Publisher Copyright:
©2000 IEEE.
PY - 2000/1/1
Y1 - 2000/1/1
N2 - This paper describes a procedure to improve the Orchard-Elliott algorithm [l] for shaped radiation pattern synthesis. By far, this algorithm results in the best performance for shaping radiation patterns. However, its iterative procedure occasionally suffers from singularity problems throughout the matrix inversion embedded in the algorithm for large number of array elements and small ripple in the shaped radiation pattern region. This deficiency that restricts the maximum number of elements for which the algorithm still converges, can be resolved by using a pseudo-inverse technique. Further improvement is gained by choosing better initial values, which are found through a simple LMS (least mean square) procedure. The proposed algorithm converges faster, can handle much higher number of array elements and enables to obtain very small ripple in the shaped region. The algorithm performance is demonstrated on the synthesis of a linear array with a symmetric flat-toped radiation pattern.
AB - This paper describes a procedure to improve the Orchard-Elliott algorithm [l] for shaped radiation pattern synthesis. By far, this algorithm results in the best performance for shaping radiation patterns. However, its iterative procedure occasionally suffers from singularity problems throughout the matrix inversion embedded in the algorithm for large number of array elements and small ripple in the shaped radiation pattern region. This deficiency that restricts the maximum number of elements for which the algorithm still converges, can be resolved by using a pseudo-inverse technique. Further improvement is gained by choosing better initial values, which are found through a simple LMS (least mean square) procedure. The proposed algorithm converges faster, can handle much higher number of array elements and enables to obtain very small ripple in the shaped region. The algorithm performance is demonstrated on the synthesis of a linear array with a symmetric flat-toped radiation pattern.
UR - http://www.scopus.com/inward/record.url?scp=14344250149&partnerID=8YFLogxK
U2 - 10.1109/EEEI.2000.924310
DO - 10.1109/EEEI.2000.924310
M3 - Conference contribution
AN - SCOPUS:14344250149
T3 - 21st IEEE Convention of the Electrical and Electronic Engineers in Israel, Proceedings
SP - 29
EP - 32
BT - 21st IEEE Convention of the Electrical and Electronic Engineers in Israel, Proceedings
PB - Institute of Electrical and Electronics Engineers
T2 - 21st IEEE Convention of the Electrical and Electronic Engineers in Israel, IEEEI 2000
Y2 - 11 April 2000 through 12 April 2000
ER -