NDLI: Aldas user's manual

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Aldas user's manual

Content Provider	NASA Technical Reports Server (NTRS)
Author	Watts, Michael E.
Copyright Year	1991
Description	The Acoustic Laboratory Data Acquisition System (ALDAS) is an inexpensive, transportable means to digitize and analyze data. The system is based on the Macintosh 2 family of computers, with internal analog-to-digital boards providing four channels of simultaneous data acquisition at rates up to 50,000 samples/sec. The ALDAS software package, written for use with rotorcraft acoustics, performs automatic acoustic calibration of channels, data display, two types of cycle averaging, and spectral amplitude analysis. The program can use data obtained from internal analog-to-digital conversion, or discrete external data imported in ASCII format. All aspects of ALDAS can be improved as new hardware becomes available and new features are introduced into the code.
File Size	1859181
Page Count	54
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19910015443
Archival Resource Key	ark:/13960/t4pk5987j
Language	English
Publisher Date	1991-04-01
Access Restriction	Open
Subject Keyword	Computer Programming And Software Data Acquisition Calibrating Acoustics User Manuals Computer Programs Personal Computers Format Acoustic Properties Macintosh Personal Computers Sound Transmission Low Cost Spectrum Analysis Channels Data Transmission Applications Programs Computers Internal Conversion Rotary Wing Aircraft Analog To Digital Converters Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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