Angular Resolution of Coherent and Noncoherent Sources,
Abstract
The problem of resolving radiating sources in angle is formulated as a binary hypothesis test. A generalized likelihood ratio test is developed and positive results are obtained. Using simulation techniques, the probability of resolution was calculated for both coherent and noncoherent sources. Two 20-dB noncoherent Rayleigh fluctuating sources separated by 0.1 beamwidth can be resolved at a resolution probability of 0.9 and at a false-alarm rate of 0.01 by using samples from an 8-element array and 32 range cells. A one-term approximation to the generalized likelihood ratio, which is equivalent to the square error residue from fitting one source to the data, is only slightly less accurate than the likelihood approach. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 14, 1984
- Accession Number
- ADA143287
Entities
People
- Gerard V. Trunk
Organizations
- United States Naval Research Laboratory