Title :
A fault tolerant FIR adaptive filter
Author :
Schnaufer, Bernard A. ; Jenkins, W. Kenneth
Author_Institution :
Illinois Univ., Urbana, IL, USA
Abstract :
An adaptive finite impulse response (FIR) filter is presented that has the ability to compensate for faults in the adaptive coefficients. The fault tolerance is provided by a transform domain adaptive filter which is connected in parallel with the time domain adaptive filter. It is shown that a transform always exists that allows the new structure to tolerate any N coefficient faults, where N is the filter order. The convergence characteristics of the adaptive structure in the fault-free case are also discussed
Keywords :
adaptive filters; convergence; digital filters; fault tolerant computing; time-domain synthesis; transforms; adaptive coefficients; convergence characteristics; fault compensation; fault tolerant FIR adaptive filter; time domain adaptive filter; transform domain adaptive filter; Adaptive control; Adaptive filters; Adaptive systems; Convergence; Echo cancellers; Fault tolerance; Finite impulse response filter; Hardware; Least squares approximation; Programmable control;
Conference_Titel :
Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0593-0
DOI :
10.1109/ISCAS.1992.230556
