USA flag logo/image

An Official Website of the United States Government

Innovative Submersible Outboard Cable Failure Detection and Prediction Device

Award Information

Department of Defense
Award ID:
Program Year/Program:
2010 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
NAVY 10-057
Solicitation Number:
Small Business Information
Ridgetop Group, Inc.
3580 West Ina Road Tucson, AZ 85741-2276
View profile »
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2010
Title: Innovative Submersible Outboard Cable Failure Detection and Prediction Device
Agency / Branch: DOD / NAVY
Contract: N65538-10-C-0039
Award Amount: $79,959.00


Ridgetop Group will develop a non-destructive, ruggedized toolset consisting of a personal hand-held device that uses an innovative, compact Power Draw Correlation Technique to detect damage to multi-conductor Submersible High Data Rate (SubHDR) cables. The toolset also consists of an innovative adaptive time-to-failure (ATTF) prognostic algorithm to generate accurate remaining useful life (RUL) estimates for detected damaged cables, such as those in the sensor masts of Virginia class submarines. A hand-held device transmits pseudorandom bit sequences (PRBS) along the cable: in the presence of cable damage, the PRBS energy reflects along the cable and the scattered energy will not be random. Using auto-correlation (correlogram), non-random energy causes peaks in the correlation integral; a signal phase shift indicates the damage location. As the cable damage increases, the strength of the correlogram signal increases, and this signal characteristic is a fault-to-failure progression (FFP) signature that is input to the ATTF prognostic algorithm. Ridgetop will also investigate whether time-domain reflectometry (TDR) can determine damage locations.

Principal Investigator:

James Hofmeister
Principal Investigator

Business Contact:

Douglas Goodman
President and CEO
Small Business Information at Submission:

Ridgetop Group, Inc.
6595 North Oracle Road Tucson, AZ 85704

EIN/Tax ID: 860979220
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No