Trends in Digital Signal Processing

June 16, 2015 13:56 PSP Book - 9in x 6in 06-Yong-Ching-Lim-c06

Experimental Validation 195

Figure 6.6 Performance evaluation in the case of q = 5.

cancellation based on proportionate updating outperforms the

newly proposed approach although the latter has exhibited very

strong performance and sparsity promoting characteristics. The

correlated and highly variant input signal is to blame for this

performance degradation. The APSM-based approach is benefited

by the robustness of the proportionate updating and its performance

is further enhanced by the thresholding-based sparsity promoting

mechanism showing enhanced performance, especially in the first

half ...