TAGSEA Clutter Measurement Verification
Abstract
This is the final TSC report on our overview of the TAGSEA sea clutter measurement program. It includes some general comments on the techniques used by Raytheon and General Dynamics in obtaining the data, the data reduction, and test results. Since the early discussions on procedures and tests were covered in monthly meetings and reported earlier, this report emphasizes the validity of the results and their use in relating sea clutter model for Navy use. TSC has no reason to question the validity of the data itself. While the system was not designed for quantitative measurement of sigma sub zero, the results should be accurate to within a few decibels (+ or - 3 dB(2 sigma)). Both Raytheon and General Dynamics appear to have performed good tests in the time allotted. Two areas deserve special attention. While the measurement of sea reflectivity, sigma sub zero, was not a primary function of the tests, the results showed the greatest deviation from earlier models. For grazing angles of 10 deg < psi < 45 deg, the TAGSEA mean values of sigma sub zero were 6-9 dB higher than earlier models, especially those of NRL for the higher sea states (SS>4). It is proposed in Section 3 that TSC believes that the TAGSEA results are probably more representative of high sea state reflectivity than the earlier models and that some values in new models should be raised by 4-6 dB.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 29, 1976
- Accession Number
- ADA037249
Entities
People
- F. Nathanson
- L. Brooks
- P. Brooks
Organizations
- Johns Hopkins University