Paper
16 June 1998 Smart structure active sonar echo cancellation using frequency-scheduled control
Laurence R. Riddle, John J. Murray
Author Affiliations +
Abstract
Practical applications of smart structure technology to active acoustic noise control demand high performance at low cost. Typically, performance increase achieved by reducing control system latency are expensive. Furthermore, sonar echo cancellation is concerned with a wide frequency range for which linear time-invariant (LTI) controllers provide inadequate performance, and no direct error measurement is available to drive adaptive controllers. Real-time estimators of the cancellation error have been proposed to enable the use of adaptive controllers, however this significantly increases the system cost. In this paper, we introduce a frequency scheduled control architecture for echo cancellation which achieves adaptive control performance at LTI control prices, by exploiting the narrow instantaneous bandwidth commonly associated with individual sonar pings.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Laurence R. Riddle and John J. Murray "Smart structure active sonar echo cancellation using frequency-scheduled control", Proc. SPIE 3326, Smart Structures and Materials 1998: Industrial and Commercial Applications of Smart Structures Technologies, (16 June 1998); https://doi.org/10.1117/12.310671
Lens.org Logo
CITATIONS
Cited by 1 scholarly publication.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Control systems

Acoustics

Calibration

Smart structures

Frequency modulation

Actuators

Fermium

Back to Top