Advanced Acoustic Sensor System Software
Abstract
As a result of acoustic sensor analyses, trade studies and evaluations completed during 1973, an acoustic sensor system concept was developed and components were selected, procured and installed in a Boeing ASW test airplane. The applications software, designed and programmed for operation in the Interdata Model 85 computer, controls data acquisition, processing and display. The nucleus of this software is the real-time program which controls data acquisition from the analog-to-digital converter, performs the Fast Fourier Transform, line integration and line tracking algorithms, and communicates with the operator through the Hazeltine 2000 CRT/keyboard and the electrographic recorder displays. In November 1973, an end-to-end test of the Acoustical Signal Processing and Analysis System (ASPAS) was run. The test employed an analog test tape, first with a sine wave with no acoustic noise, and then with a sine wave with noise added for approximately thirty minutes. The tests clearly demonstrated the capability of the ASPAS to detect and process signal-to-noise levels lower than -20 decibels.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 03, 1974
- Accession Number
- AD0920376
Entities
People
- Charles Cretin
- Greg Scallon
Organizations
- Boeing