ROBUST ACTIVE NOISE CONTROL SYSTEM FOR FIGHTER AIRCRAFT PILOT HELMET APPLICATION

Robust Active Noise Control System for Fighter Aircraft Pilot Helmet Application

Y.K.Bharath, G. Chitralekha, S. Veena, H. Lokesha et. al., Robust Active Noise Control System for Fighter Aircraft Pilot Helmet Application, Procedia Computer Science, 89 (2016), 690-699, Elsevier

Abstract

This paper proposes an Active Noise Control (ANC) scheme for fighter aircraft pilot helmet application. The proposed scheme addresses the noise environment inside the helmet to achieve perceivable noise attenuation. It also incorporates algorithms such as energy based detectors to control the operation of ANC system and variable step-size to increase the performance of ANC to make the system robust. The paper highlights the real-time algorithm development on a DSP processor to meet the real-time resource constraints. The developed ANC system is evaluated in the laboratory for a typical fighter aircraft noise and the results when compared with the performance of existing system, found to be quite promising.

Keywords: Adaptive Noise Canceller; Fighter Aircraft Pilot Helmet; FXLMS; LMS; Robust Active Noise Control; Variable

Step-size.