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Research Grant
IDN00024-12-P-4006Funding AgencyDepartment of DefenseEffective Date2011-10-28Funding Amount$79,817
The use of Spread Spectrum Time Domain Reflectometry (SSTDR) that has already been proven in aerospace applications will be adapted and optimized for detection and location of wiring faults in shipboard systems. SSTDR is the only technology that allows MCS fault detection and isolation, on fully powered systems without taking the console offline or disconnecting any of the system components, thus accelerating the mitigation and repair process. SSTDR detects and locates a full range of impeda…
Research Grant
IDFA9300-11-C-3007Funding AgencyDepartment of DefenseEffective Date2011-09-16Funding Amount$683,535
ABSTRACT: Weapon systems or other high value electrical systems within the US military are all subject to wiring faults and degradation. Additionally, weapon systems are kept in service longer because of shrinking defense budgets, further compounding the risks associated with wiring systems. The ability to detect and provide the location of existing wiring problems or pending failures is critical. LiveWire Test Labs demonstrated during SBIR phase I that its Spread Spectrum Time Domain Ref…
Patent
Publication NumberUS 20110181295Filing StatusPatent ApplicationAvailabilityUnknownFiling Date2011-01-19Publication Date2011-07-28
Systems and methods for detecting a fault in an electronic conductor are provided. Electronic parameter measurements are combined with reflectometry profiles to determine when faults are present on the electronic conductor.
Patent
Publication NumberUS 7634012Filing StatusIssued PatentAvailabilityUnknownFiling Date2004-06-09Publication Date2009-12-15
A multi-carrier spread spectrum (MC-SS) technique is disclosed which includes non-linearly modifying the sub-carriers in the receiver. A method (600) and receiver (200, 300) for processing an MC-SS signal, a transceiver for MC-SS communications (700), and an MC-SS radar (800) are describe.
Patent
Publication NumberUS 7622931Filing StatusIssued PatentAvailabilityUnknownFiling Date2006-10-03Publication Date2009-11-24
Non-contact reflectometry for testing a signal path is described. The technique includes using capacitive coupling to inject a test signal into the signal path and extract a response signal from the signal path. Reflectometry techniques are used to determine characteristics of the signal path from the response signal. The technique is compatible with performing testing of a signal path carrying an operational signal.
Patent
Publication NumberUS 7548071Filing StatusIssued PatentAvailabilityUnknownFiling Date2007-01-30Publication Date2009-06-16
A technique for reflectometry testing of a signal path is disclosed. The technique includes injecting a test signal based on a probe pseudo-noise sequence into the signal path and obtaining a response signal. A sliding reference pseudo-noise sequence is correlated against the response signal. Both the probe sequence and the reference sequence are generated at a chip rate. The correlation is obtained for integer chip time delays, and sub-chip resolution of a peak correlation delay is estimated…
Research Grant
IDFA8650-09-M-2026Funding AgencyDepartment of DefenseEffective Date2009-06-15Expiration Date2010-03-17Funding Amount$99,949
The objective of this proposal is to develop a feasible design for intermittent electrical fault detection and location for a weapons system using analog S/SSTDR for continual monitoring. We have already demonstrated the feasibility of the basic S/SSTDR technology for live aircraft in flight where analog real-time, randomly occurring, anomalous or intermittent age-related failure events are commonly not reproducible on the ground.  In this project we will address the specific design considera…
Patent
Publication NumberUS 7495450Filing StatusIssued PatentAvailabilityUnknownFiling Date2005-05-18Publication Date2009-02-24
A device and method provides for measuring the electrical properties of electronic signal paths, including wires and wireless channels. The device can be used for detecting open circuits, short circuits, and the lengths of wires. The device can include a sensor configured to measure a bulk electrical inductance of said wire to produce a measurement result and a processor configured to extract a length of the wire from the measurement result of the sensor.
Patent
Publication NumberUS 7282922Filing StatusIssued PatentAvailabilityUnknownFiling Date2006-01-31Publication Date2007-10-16
A method and apparatus for mapping a wire network is disclosed. The method includes obtaining a reflectometry test signal of the wire network. An estimated network impulse response is estimated from the reflectometry response. A wire network model is then initialized, and iteratively improved by simulating an impulse response of the wire network model and adjusting the wire network model to reduce differences between the simulated impulse response and estimated network impulse response.
Patent
Publication NumberUS 7271596Filing StatusIssued PatentAvailabilityUnknownFiling Date2005-09-16Publication Date2007-09-18
A technique for testing a signal path while an operational signal is present is disclosed. The technique may be performed without injecting a test signal into the signal path by using an operational signal already present in the signal path. A method of testing a signal path includes receiving an operational signal from the signal path and estimating a correlation of the operational signal. A system for testing a signal path includes an extractor configured to extract a sample of the operatio…
We found 22 documents that match your Search
Research Grants: 7
Patents: 15

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