Evaluation of Probability of Detection for Several Target Fluctuation Models
Abstract
Highly efficient algorithms have been derived for calculating the probability of detection, P sub D, for several target fluctuation models. These include the Marcum model (constant target cross section) and the four Swerling models (chi-squared fluctuations). Programs are presented in computer free notation as well as FORTRAN (for accuracies of 0,000001 and 10 to the minus 12 power for each of the models. In addition, an approximate expression for the elevation of P sub D, applicable when the target return is constant during a scan but exhibits log-normal fluctuation from scan-to-scan, is presented, together with a listing of a FORTRAN program that evaluates the expression. An efficient iterative routine for the determination of the threshold from the probability of false alarm is also included.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 08, 1975
- Accession Number
- ADA013733
Entities
People
- David A. Shnidman
Organizations
- Massachusetts Institute of Technology