Accession Number:

ADA067977

Title:

Experimental Performance Measurements of Adaptive Noise Canceller (ANC). Various Inputs and Internal Parameters Correspond with Existing Theory.

Descriptive Note:

Final rept. Oct 77-Jun 78,

Corporate Author:

HYDROTRONICS INC SAN DIEGO CA

Personal Author(s):

• Hearn, R. H.
• Shensa, M.
• Whaley, M.

Report Date:

1978-09-01

Pagination or Media Count:

47.0

Abstract:

This report describes tests performed on the Adaptive Noise Canceller ANC as part of a joint NUSCNOSC program investigating adaptive processors. The purpose of the test was to evaluate the effects of various inputs and internal parameters on the operating characteristics of the ANC. The primary dependent parameters of interest were the adaptive time constant, the notch width, and notch depth. These were measured as functions of the filter length, feedback constant, reference power spectrum and delay. The number of reference inputs was varied as well. The experimental results are plotted and show excellent agreement with existing theory. Author

Descriptors:

• *ADAPTIVE SYSTEMS
• *NOISE REDUCTION
• PARAMETRIC ANALYSIS
• PERFORMANCE(ENGINEERING)
• ELECTRONIC EQUIPMENT
• POWER SPECTRA
• FEEDBACK
• FLOW CHARTING
• FILTERS
• SCORING
• CIRCUIT ANALYSIS
• NOTCH SENSITIVITY

Subject Categories:

• Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE