STUDY OF BROAD-BAND AMPLITUDE-COMPARISON METHODS FOR ACCURATE MICROWAVE DIRECTION FINDING IN A SECTOR,
Abstract
Frequency invariant aerial radiation patterns are ideally required in two-channel amplitude-comparison systems for accurate direction finding over bandwidths approaching an octave. Optimum radiation patterns are not practically realisable, but reasonable approximations to these may be synthesised using multiple narrow beams. The design of a 6-beam detector-video system for determining the angle of arrival of a single pulse signal within an 8 degree sector is considered and sources of D.F. error are analysed. An overall D.F. error of 0.2 degree rms is estimated due to systematic effects. Voltage signal-to-noise ratios of greater than 150:1 are necessary to minimise further D.F. degradation due to thermal noise. Alternative signal processing studies are planned. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1967
- Accession Number
- AD0666955
Entities
People
- N. A. D. Pavey
Organizations
- Royal Aircraft Establishment