Method for the analysis of laser Doppler signals with the aid of a computer
Abstract
To supplement existing systems for the analysis of laser Doppler signals, a method was developed for performing the signal analysis with the aid of a computer. In principle, the program classifies the digitized signals and evaluates the mean frequency of those judged valid. The method can be used either on-line, without storage of the raw data, or in an off-line mode, storing the raw data before performing data reduction. The programs produced are described together with a brief description of system-dependent errors.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- November 1975
- Bibcode:
- 1975STIN...7620453P
- Keywords:
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- Digital Computers;
- Digital Techniques;
- Laser Doppler Velocimeters;
- Signal Analysis;
- Analog To Digital Converters;
- Computer Programs;
- Data Reduction;
- Data Storage;
- Error Analysis;
- Fast Fourier Transformations;
- Instrumentation and Photography