TY - JOUR
T1 - Sparse linear array synthesis with multiple constraints using differential evolution with strategy adaptation
AU - Goudos, Sotirios K.
AU - Siakavara, Katherine
AU - Samaras, Theodoros
AU - Vafiadis, Elias E.
AU - Sahalos, John N.
PY - 2011
Y1 - 2011
N2 - This letter addresses the problem of designing sparse linear arrays with multiple constraints. The constraints could include the minimum and maximum distance between two adjacent elements, the total array length, the sidelobe level suppression in specified angular intervals, the main-lobe beamwidth, and the predefined number of elements. Our design method is based on differential evolution (DE) with strategy adaptation. We apply a DE algorithm (SaDE) that uses previous experience in both trial vector generation strategies and control parameter tuning. Design cases found in the literature are compared to those found by SaDE and other DE algorithms. The results show that fewer objective-function evaluations are required than those reported in the literature to obtain better designs. SaDE also outperforms the other DE algorithms in terms of statistical results.
AB - This letter addresses the problem of designing sparse linear arrays with multiple constraints. The constraints could include the minimum and maximum distance between two adjacent elements, the total array length, the sidelobe level suppression in specified angular intervals, the main-lobe beamwidth, and the predefined number of elements. Our design method is based on differential evolution (DE) with strategy adaptation. We apply a DE algorithm (SaDE) that uses previous experience in both trial vector generation strategies and control parameter tuning. Design cases found in the literature are compared to those found by SaDE and other DE algorithms. The results show that fewer objective-function evaluations are required than those reported in the literature to obtain better designs. SaDE also outperforms the other DE algorithms in terms of statistical results.
KW - Differential evolution (DE)
KW - genetic algorithms (GAs)
KW - linear array design
KW - sidelobe suppression
KW - sparse array synthesis
KW - unequally spaced array
UR - http://www.scopus.com/inward/record.url?scp=79960522897&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2011.2161256
DO - 10.1109/LAWP.2011.2161256
M3 - Article
AN - SCOPUS:79960522897
SN - 1536-1225
VL - 10
SP - 670
EP - 673
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
M1 - 5940202
ER -