A matched filter algorithm for acoustic signal detection.
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Authors
Jordan, Dorsett Weston.
Subjects
analog filter
digital filter
bilinear transform
space shuttle
auxiliary power unit
INTEL 2920 analog signal processor
adaptive linear combiner
adaptive transversal filter
digital filter
bilinear transform
space shuttle
auxiliary power unit
INTEL 2920 analog signal processor
adaptive linear combiner
adaptive transversal filter
Advisors
Panholzer, Rudolf
Date of Issue
1985-06
Date
June 1985
Publisher
Language
en_US
Abstract
This thesis is a presentation of several alternative
acoustic filter designs which allow Space Shuttle payload
experiment initiation prior to launch. This initiation is
accomplished independently of any spacecraft services by
means of a matched band-pass filter tuned to the acoustic
signal characteristic of the Auxiliary Power Unit (APU)
which is brought up to operating RPM's approximately five
minutes prior to launch.
These alternative designs include an analog filter built
around operational amplifiers, a digital IIR design
implemented with an INTEL 2920 Signal Processor, and an
Adaptive FIR Weiner design. Working prototypes of the first
two filters are developed and a discussion of the advantage
of the 2920 digital design is presented.
Type
Thesis
Description
Series/Report No
Department
Electrical and Computer Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
221 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.