Coherent Active Sonar Waveform Analysis Using Pressure/Velocity Phase Comparison for Improved Detection and Classification

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-10-C-0494
Agency Tracking Number: N091-010-0513
Amount: $747,299.00
Phase: Phase II
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: N091-010
Solicitation Number: 2009.1
Small Business Information
Navmar Applied Sciences Corporation
65 West Street Road, Building C, Warminster, PA, -
DUNS: 095275343
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Arthur Horbach
 Principal Investigator
 (215) 675-4900
Business Contact
 Robert Bauder
Title: Vice President/Dir. of Co
Phone: (610) 619-7443
Research Institution
Navmar Applied Sciences Corporation was awarded a Phase I SBIR program for the Coherent Active Sonar Waveform Analysis Using Pressure/Velocity Phase Comparison for Improved Detection and Classification (Topic No. N091-010) under Contract No. N68335-09-C-0196, dated 14 April 2009 (based on Proposal N091-010-0513). The acronym CASPARS (Coherent Active Sonar Phase Analysis of Reactive Signals) was adopted for use on this program. The objective of this project was to develop a technique to exploit acoustic intensity to enhance the detection of submarines using particle-velocity information and acoustic pressure data. Scattering analysis included the vertical extent of the reactive intensity area and included a reduced frequency analysis to cover realistic source and target sizes. A processing string was developed for real or simulated data, and will accept individual sensor data or multiplexed DIFAR data. Results indicate there is sufficient vertical extent of the forward-scattered field in which a phase shift is detectable for a single DIFAR. An experiment was described to test the performance of the detection process in an ocean environment. This proposal continues this effort to prepare for and conduct a data acquisition sea test and conduct analysis on the data with recommendations for the development of an appropriate system.

* information listed above is at the time of submission.

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government