Principle and applications of asymmetric crosstalk-resistant adaptive noise canceler

✍ Scribed by Sen M Kuo; Wei M Peng

• Book ID: 104115462
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 380 KB
• Volume: 337
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(00)00007-7

✦ Synopsis

This paper analyzes the performance of the crosstalk-resistant adaptive noise canceler (CTRANC). The CTRANC system's symmetric structure causes inconsistent performance when treating noise coming from di!erent angles. To solve this problem, an asymmetric CTRANC (ACTRANC) structure using a delay unit on the primary channel to guarantee causality of the system is proposed. This system is analyzed in steady state assuming that the primary and reference signals are uncorrelated. The ACTRANC allows #exible alignment of the noise source with the sensor array in advanced communication applications such as adaptive noise cancellation, acoustic echo cancellation, and adaptive beamforming. Experiments are presented to demonstrate ACTRANC's performance improvement for various noise orientations.