Award Data

The low power of the GPS satellite makes these signals particularly susceptible to jamming. The best anti-jamming (A/J) performance demonstrated with a GPS receiver to date has been through the use of nulling antennas. Adaptive nulling electronics have been designed that can support J/S margins of up to 98 dB. Because of physical size limitations, the use of antenna arrays have been restricted ...

The low power of the GPS satellite makes these signals particularly susceptible to jamming. The best anti-jamming (A/J) performance demonstrated with a GPS receiver to date has been through the use of nulling antennas. Adaptive nulling electronics have been designed that can support J/S margins of up to 98 dB.Because of physical size limitations, the use of antenna arrays have been restricted to ...

The proposed GPS Portable Landing Aid System (GPLAS) provides a highly accurate, fully autonomous system that is ideally suited to support V-22 missions. The GPLAS ground station includes a GPS reference receiver (RR) and a pseudolite (PL) which broadcasts the landing signal and GPS data corrections to the aircraft. The RR also is used to automatically survey the landing site. Since the PL signal ...

Modern GPS receivers adopt a digital architecture to facilitate signal processingusing high speed VHDL electronics. NAVSYS has developed a buffered digital receiver architecture (the TIDGET (TM) -PLUS) that optimizes the GPS search and acquisition process by operating in the frequency domain. The Rapid Acquisition FFT (RAFFT) approach was developed by NAVSYS initially to speed high dynamic C/A c ...

Modern GPS receivers adopt a digital architecture to facilitate signal processingusing high speed VHDL electronics. NAVSYS has developed a buffered digital receiver architecture (the TIDGET (TM) -PLUS) that optimizes the GPS search and acquisition process by operating in the frequency domain. The Rapid Acquisition FFT (RAFFT) approach was developed by NAVSYS initially to speed high dynamic C/A c ...

NAVSYS have previously developed a low cost, low power GPS sensor, the TIDGET which adopts a client/server architecture to sample and buffer "windows" of GPS data for processing at a remote workstation. Many of the advantages of this approach can be realized with a "TIDGET-PLUS" architecture where the buffered data is processed at the receiver. Since the TIDGET front-end is only powered on w ...

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The proliferation of GPS into weapons systems provides an opportunity to establish a wireless data interface into GPS guided weapons. The proposed design builds on an Open Systems Interconnect (OSI) model to provide a generic network architecture that takes advantage of existing standards in data communication to facilitate integration with the Military Information Structure or C41 network. Under ...

The proliferation of GPS into weapons systems provides an opportunity to establish a wireless data interface into GPS guided weapons. The proposed design builds on an Open Systems Interconnect (OSI) model to provide a generic network architecture that takes advantage of existing standards in data communication to facilitate integration with the Military Information Structure or C41 network. Under ...

Not Available Complex distributed systems are difficult to develop, validate and maintain. Instead of exhibiting graceful degradation under stress these types of systems tend to collapse, degrading far out of proportion to the increase in demand or loss in hardware performance causing the stress. The solution is to develop a new composable software architecture and agile run-time system which a ...