An Adaptive Sonobuoy Location System Using Precision Time and Frequency

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-10-C-0361
Agency Tracking Number: N101-025-1578
Amount: $80,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solitcitation Year: 2010
Solitcitation Topic Code: N101-025
Solitcitation Number: 2010.1
Small Business Information
Propagation Research Associates
1275 Kennestone Circle, Suite 100, Marietta, GA, 30066
Duns: 149785201
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jeff Holder
 Principal Research Scient
 (678) 384-3402
 jeff.holder@pra-corp.com
Business Contact
 Susan Dugas
Title: Vice President
Phone: (678) 384-3401
Email: contracts@pra-corp.com
Research Institution
N/A
Abstract
Propagation Research Associates, Inc., teamed with Ultra Electronics UnderSea Sensor Systems Inc., with support from Boeing Integrated Defense Systems proposes to design and assess the performance of a Sonobuoy Location System (SLS) that implements the latest digital synchronization technology to align uplink and downlink signals. Current digital synchronizer technology will allow the PRA SLS to detect and measure low Doppler signatures that will be expected from the relative velocities between the patrol aircraft and the deployed sonobuoys. This digital technology will allow PRA to modify waveforms to adapt system performance based on operational sensitivity requirements. PRA will design and evaluate two SLS concepts - one that uses a two-way downlink/uplink and a combination of range/Doppler measurements made on the aircraft, and another that uses a one-way downlink and a combination of time-difference-of-arrival/frequency-difference-of-arrival measurements made on the sonobuoy and communicated to the patrol aircraft on existing communication channels. The objectives of this effort are to achieve required sonobuoy track accuracies while operating at any altitude, utilize as much of the existing SLS hardware and infrastructure as possible, minimize the impact of new hardware on the existing system, mitigate the effect of radio frequency interference and 5) maintain a cost effective solution.

* information listed above is at the time of submission.

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