Accession Number:

ADA143287

Title:

Angular Resolution of Coherent and Noncoherent Sources,

Descriptive Note:

Interim rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1984-06-14

Pagination or Media Count:

17.0

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

Subject Categories:

  • Statistics and Probability
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE