Based on Improved SST Algorithm for Estimation of Angles of Arrival of Multiple Wide-band Sources
LI Zhi-chen · Science Technology and Engineering · 2012
The focusing matrix of Signal subspace transform algorithm(SST) is derived by using the signal subspace relationship between the frequency and the reference frequency point.In view of the high computational complexity and estimation bias problem by using the traditional broadband DOA algorithm,the improved SST algorithm is proposed.Based on Computer simulations,the signal DOA can be distinguished by the modified SST algorithm with lower computation,and performs better than the conventional SST algorithm in DOA estimation.