Methods of improving the accuracy characteristics and noise immunity of a signal analyzer for an LDV discrete frequency measurement system
Abstract
Methods for improving the noise immunity and accuracy characteristics of electronic equipment for discrete frequency measurement are examined which are based on an analysis of the shape of the LDV signal and statistical properties of the noise accompanying the signal. The technical specifications and performance characteristics of a signal analyzer are described. The accuracy of the signal analyzer and an instrument for measuring time parameters are evaluated using an electronic LDV signal simulator.
- Publication:
-
Collection of Works on Measuring and Computing Systems for Research on the Aerodynamics, Dynamics, and Strength of Flight Vehicles
- Pub Date:
- 1990
- Bibcode:
- 1990cwmc.rept...61R
- Keywords:
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- Frequency Measurement;
- Laser Doppler Velocimeters;
- Signal Analyzers;
- Signal To Noise Ratios;
- Digital Techniques;
- Noise Reduction;
- Noise Spectra;
- Statistical Distributions;
- Instrumentation and Photography