A study of the metrological characteristics of LDV using stands simulating the LDV signal
Abstract
The operation of LDV systems implementing the discrete method of measuring the Doppler frequency of a signal and test stands simulating the LDV signal is described. The probability characteristics of the LDV signal duration and of the single measurement error are analyzed with allowance for the finite length of the standard time quantum of a time parameter analyzer. A method is proposed for analyzing the error of a single LDV measurement using a simulation stand.
- 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...69R
- Keywords:
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- Frequency Measurement;
- Laser Doppler Velocimeters;
- Pulse Duration;
- Signal Analyzers;
- Digital Techniques;
- Flow Measurement;
- Instrument Errors;
- Time Measurement;
- Instrumentation and Photography