PARKA II
Abstract
The PARKA II measurement program extended the testing of the Fleet Numerical Weather Central (Monterey) long range acoustic propagation model, begun under PARKA I, to other seasons and propagation paths. PARKA II also measured the stability and phase coherence (over a vertical aperture) of long range acoustic paths, investigated the depth dependence of low frequency acoustic ambient noise and demonstrated advances in techniques and instrumentation for real-time acoustic data processing. The PARKA experimental program have achieved the following significant results: established a three season acoustic/oceanographic data bank; tested an interim Navy standard for reliable prediction of propagation loss; investigated the dependence of detection performance on sensor depth; investigated the feasibility of signal- to-noise ratio enhancement through vertical directionality; demonstrated feasibility of real-time data reduction in a multi-ship investigation as a routine procedure; and demonstrated feasibility of satellite data relay, ship-to-shore.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1970
- Accession Number
- AD0513631