A Dopplar radar for velocity measurements of small projectiles
Abstract
A Doppler radar velocity measurement system for small projectiles was developed. The system uses a CW Doppler homodyne radar. It is capable of measuring projectiles with a diameter of 3 mm at a distance of 20 m. Comparison between simulations and test fixings prove that initial velocity as well as drag coefficient can be determined with an accuracy or = 3%. It is concluded that the fluence of tunnel environment and shock waves on the measurement is not detectable and Sabot particles completely disturb the measurement.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- May 1981
- Bibcode:
- 1981STIN...8225437V
- Keywords:
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- Doppler Radar;
- Homodyne Reception;
- Hypervelocity Projectiles;
- Velocity Measurement;
- Aerodynamic Coefficients;
- Aerodynamic Drag;
- Computer Programs;
- Computerized Simulation;
- Drag Measurement;
- Sabot Projectiles;
- Communications and Radar