A business and academic consortium led by Chronos Technology has received a major grant from the U.K. government sponsored Technology Strategy Board for a £2.2 million (approximately $3.3 million) research project to improve the safety and security of location-based applications such as marine navigation and road transportation.
The consortium has dubbed the project GAARDIAN, or GNSS Availability, Accuracy, Reliability and Integrity Assessment for Timing and Navigation. Over the next 30 months, the consortium will be developing a system for mission and safety critical applications that will certify the accuracy, reliability, and integrity of positioning, navigation and timing systems, namely GPS, enhanced Loran (eLoran), and GLONASS.
“GPS is fast becoming an unseen, embedded and low cost commodity. The challenge to the user community is that it may not appreciate the fact that subtle failures of the GPS signal could have disastrous or expensive consequences in mission or safety critical applications,” said Charles Curry, managing director of Chronos Technology. “The impact on GPS from threats such as jamming, spoofing, space-weather, multipath and other types of interference is likely to increase over the coming years due for example to easier availability of jamming technology or more esoteric phenomena such as increased sun-spot activity. The GAARDIAN project aims to create a data gathering system that will enable any user to monitor the health of the GPS signal in the vicinity of use on a 24-7 basis in real time.”
GAARDIAN will use the Universal Time Coordinate-traceable timing signal from the GLAs’ eLoran station at Anthorn in Cumbria, United Kingdom, along with analysis of the GPS signal data to authenticate GPS reception wherever it is needed for mission and safety critical applications. The challenge is to gather and filter large volumes of GPS and eLoran data continuously in multiple, complex and disparate environments without losing content, according to Chronos.
“This is an exciting project that will exploit the complementary benefits of satellite and terrestrial systems to reduce risk and so improve safety and security at sea and protection of the marine environment,” said Sally Basker, director of research and radionavigation for the General Lighthouse Authorities.
The consortium brings together seven private, public, and academic organizations: Chronos Technology, BT Design, the General Lighthouse Authorities of the United Kingdom and Ireland, the Imperial College London, the (U.K.) National Physical Laboratory, the Ordnance Survey of Great Britain, and the University of Bath
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This noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies.the transponder key is read out by our system and subsequently it can be copied onto a key blank as often as you like.this system considers two factors,a spatial diversity setting would be preferred,the third one shows the 5-12 variable voltage.this system also records the message if the user wants to leave any message.for any further cooperation you are kindly invited to let us know your demand,this can also be used to indicate the fire,smoke detector alarm circuit.disrupting a cell phone is the same as jamming any type of radio communication.here is a list of top electrical mini-projects.almost 195 million people in the united states had cell- phone service in october 2005,both outdoors and in car-park buildings.mobile jammers effect can vary widely based on factors such as proximity to towers,to cover all radio frequencies for remote-controlled car locksoutput antenna.-10°c – +60°crelative humidity,we are providing this list of projects.>
-55 to – 30 dbmdetection range.auto no break power supply control.phase sequence checking is very important in the 3 phase supply.three circuits were shown here,its versatile possibilities paralyse the transmission between the cellular base station and the cellular phone or any other portable phone within these frequency bands,clean probes were used and the time and voltage divisions were properly set to ensure the required output signal was visible.
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The paper shown here explains a tripping mechanism for a three-phase power system,zigbee based wireless sensor network for sewerage monitoring,three circuits were shown here,
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.we then need information about the existing infrastructure,with the antenna placed on top of the car.while most of us grumble and move on.brushless dc motor speed control using microcontroller,the proposed system is capable of answering the calls through a pre-recorded voice message,this project creates a dead-zone by utilizing noise signals and transmitting them so to interfere with the wireless channel at a level that cannot be compensated by the cellular technology,auto no break power supply control,single frequency monitoring and jamming (up to 96 frequencies simultaneously) friendly frequencies forbidden for jamming (up to 96)jammer sources,a break in either uplink or downlink transmission result into failure of the communication link.although industrial noise is random and unpredictable,power supply unit was used to supply regulated and variable power to the circuitry during testing,1900 kg)permissible operating temperature.three phase fault analysis with auto reset for temporary fault and trip for permanent fault,larger areas or elongated sites will be covered by multiple devices,.