BiRASP - The Bistatic Range-Dependent Active System Performance Prediction Model.
Abstract
In 1992, the Naval Research Laboratory (NRL) published a report describing the Range-dependent Active System Performance (RASP) prediction model; a sequence of computer programs using multipath propagation and scattering processes to predict the long-range, low-frequency boundary reverberation, and target returns that would be received in real ocean environments. That computer model has been extended to admit arbitrary source/receiver configurations within a three-dimensional, range-dependent environment. The enhancements include: (1) range and azimuthal dependence in all environmental parameters, (2) volume scattering and bistatic scattering strength functions, (3) realistic source and receiver characteristics (e.g., three-dimensional beam patterns for linear arrays and array tilt), and (4) calculation of target returns with time/angle spreading. In addition to addressing the prediction and evaluation of active sonar systems in real ocean environments, the set of programs that comprise the Bistatic Range-dependent Active System Performance (BiRASP) prediction model also produce the detailed, high-resolution results required for basic theoretic and experimental acoustic research. This report presents the theoretical foundations of the BiRASP model and the corresponding numerical implementation of this theory. Further, a detailed description of the model software, instructions for execution, and sample results are provided.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 1996
- Accession Number
- ADA316575
Entities
People
- David M. Fromm
- John P. Crockett
- L. B. Palmer
Organizations
- United States Naval Research Laboratory