Accession Number:

AD0263478

Title:

DOPPLER SPECTRAL CHARACTERISTICS OF AIRCRAFT RADAR TARGETS AT S-BAND

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1961-08-03

Pagination or Media Count:

40.0

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.

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE