A Upgraded Connection Constraint Algorithm for a Sparse Reconfigurable Adaptive Filter
Hong Chang, Suk-Seung Hwang · 한국전자통신학회 학술대회지 · 2011
The sparse reconfigurable adaptive filter (SRAF) consists of an input delay bank, a photonic switch with reconfigurable connections and adaptive weights, and an output delay bank. Switch delay choice plays a key role for efficiently implementing the SRAF. Conventional connection algorithm based on sequentially selecting the maximum elements might not work well if the same values exist as calculating the sum of weight magnitudes for implementing the connection constraint required by the SRAF. In order to overcome this problem, a upgraded connection algorithm used progressive calculation to obtain the optimal solution, which can improve the accuracy of system identification, is considered in this paper. Computer simulation is presented to illustrate the performance of the proposed connection constraint algorithm for a system identification application.