A Method for Determining Signal Direction Using Artificial Doppler Shifts
Abstract
A method for determining the direction of an incoming signal is provided in which each of a plurality of receivers arranged in a linear array is sampled in sequence to simulate a single receiver moving along an aperture defined by the linear array at a simulated speed. This generates a simulated time series data from which a simulated Doppler shift in the incident angle is measured. The simulated Doppler shift is used to determine the incident angle between the incident signal and the linear array of receivers. By adjusting the simulated speed to eliminate artifacts in the power spectral density of the data obtained from the receivers, the incident angle can be obtain from the expression of the simulated Doppler shift.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 03, 2007
- Accession Number
- ADD020297
Entities
People
- Anthony A. Ruffa
Organizations
- United States Department of the Navy