NASA SBIR SUCCESS STORY

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Johnson Space Center  
1993 Phase II

Faulty Isolation Using Fuzzy Logic

Lincom Corporation acquired by Titan Corporation

Houston, TX

INNOVATION
Developed Fuzzy Logic based method for Fault detection, isolation, and recovery that is fast, accurate, and robust.This technology is utilized in the firms Loss-Tolerant Speech Decorder.
Fault Identification Using Fuzzy Sets
Fault Identification Using Fuzzy Sets

 

ACCOMPLISHMENTS
  • Developed Algorithm that was incorporated into various data analysis tools.

  • The Loss-Tolerant Speech DecorderTM is a Frame - Error concealment technique for real-time digital wireless speech communications that has been applied to the Sinousoidal Tranform Coder (STC) AT 2400 bps. The LTSDTM generates speech that sounds much better than Paramount Repeat. The LTSDTM was developed under the NASA Phase II Samall Business Innovation Research (SBIR) program to be completed in August 1996. (The STC was developed by MIT Lincoln Laboratory).
COMMERCIALIZATION
  • LinCom Corporation has been purchased by the Titan Corporation (NYSE:TTN). Headquartered in San Diego, California, The Titian Corporation is an incubator of technology based commercial business, offering innovative and advanced technical solutions.
  • The company has 7,800 employees, annualized sales of approximately $1.1 billion.
GOVERNMENT/SCIENCE APPLICATIONS
  • NASA Shuttle S-Band Diagnosis Applications is being made into Real-Time Applications for direct mission support. Also the US Air Force interested in application to engine diagnosis
  • The noise sources were used to recorded noise on various Space Shuttle flights. The actual cabin environment was recorded digitally on orbit during STS - 62 using an IBM ThinkPad 755c/486 at 22.050 KHz with 16-bits/sample. Cockpit noise was recorded on an audio cassette aboard STS-41 before launch, was mixed in digitally at level of 15dBsignal-to-noise ratio (SNR) to a clean speech signal.
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Curator: SBIR Support                   6/6/05