TY - JOUR
T1 - An Investigation of an Adaptive IIR Echo Canceller
T2 - Advantages and Problems
AU - Fan, Hong
AU - Jenkins, W. Kenneth
N1 - Funding Information:
Manuscript received July 31, 1986; revised May 5, 1988. This work was supported in part by the Joint Services Electronics Program under Contract N0014-84-C-0149, by AT&T Information Systems, and by the National Science Foundation under Grant MIP-8620147.
PY - 1988/12
Y1 - 1988/12
N2 - Most existing echo cancellers are designed with adaptive FIR digital filters. In this paper, a recently developed adaptive IIR filtering algorithm [32], [33] is used to implement an adaptive IIR echo canceller. The simplicity and the proved convergence of the algorithm make it attractive for this application. The advantages in using the adaptive IIR echo canceller are discussed as well as some remaining problems. Extensive computer simulations show that the IIR canceller performs better than the FIR canceller after convergence, although in general the IIR canceller converges more slowly. It is also observed that the order selection of the IIR canceller is crucial in achieving superior performance over FIR cancellers.
AB - Most existing echo cancellers are designed with adaptive FIR digital filters. In this paper, a recently developed adaptive IIR filtering algorithm [32], [33] is used to implement an adaptive IIR echo canceller. The simplicity and the proved convergence of the algorithm make it attractive for this application. The advantages in using the adaptive IIR echo canceller are discussed as well as some remaining problems. Extensive computer simulations show that the IIR canceller performs better than the FIR canceller after convergence, although in general the IIR canceller converges more slowly. It is also observed that the order selection of the IIR canceller is crucial in achieving superior performance over FIR cancellers.
UR - http://www.scopus.com/inward/record.url?scp=0024133321&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024133321&partnerID=8YFLogxK
U2 - 10.1109/29.9027
DO - 10.1109/29.9027
M3 - Article
AN - SCOPUS:0024133321
SN - 0096-3518
VL - 36
SP - 1819
EP - 1834
JO - IEEE Transactions on Acoustics, Speech, and Signal Processing
JF - IEEE Transactions on Acoustics, Speech, and Signal Processing
IS - 12
ER -