DOPPLER SPECTRAL CHARACTERISTICS OF AIRCRAFT RADAR TARGETS AT S-BAND
Abstract
The doppler frequency spectra of propeller-driven and turbojet aircraft were measured at S-band. It was found that there are numerous spectral lines in the doppler return from propeller-driven aircraft resulting from the relative motion of the propellers with respect to the radar. The doppler spectrum can be roughly predicted from a knowledge of the propeller parameters and target aspect. Turbojet aircraft spectra were found to contain a strong modulation sideband due to the engine compressor blades. Doppler velocity noise due to target scintillation was also measured.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 03, 1961
- Accession Number
- AD0263478
Entities
People
- R. E. Gardner
Organizations
- United States Naval Research Laboratory