Pulse Sounding with Closely Spaced Receivers as a Tool for Measuring Atmospheric Motions and Fine Structure in the Ionosphere. VIII. Application to Aircraft Signals.
Abstract
Signals transmitted from an aircraft and received on the ground are characterized by a Doppler shift which falls outside the principal range of the instrument from -2 to +2 Hz. A data processing technique combines the Fourier spectra of three interlaced sets of data in such a way that the shifted Doppler range includes the spectrum of the aircraft signal. The shift can be either preselected or determined from the signal itself. Printouts of Fourier spectra computed by both methods are compared.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 07, 1975
- Accession Number
- ADA014784
Entities
People
- G. Sales
- W. Pfister
Organizations
- Air Force Cambridge Research Laboratories