An information system and method provides information to an operator of a motor vehicle. A destination location and a current position of the motor vehicle are established. A planned route is established as a function of the destination location and the current position, and at least one required parameter of the vehicle.

System and method for providing information to an operator of a vehicle

A method for adding an integrated Nav-Com capability to any Global Navigation Satellite System (GNSS) user equipment, such as GPS receivers, requires no hardware modifications to the existing user equipment. The concept may be applied to a Defense Advanced GPS Receiver (DAGR) and combines Low Earth Orbiting (LEO) satellites, such as Iridium, with GPS or other GNSS systems to significantly improve the accuracy, integrity, and availability of Position, Navigation, and Timing (PNT), and to enable new communication enhancements made available by the synthesis of precisely coupled navigation and communication modes; to achieve time synchronization stability to the required sub-20 ps level between the existing DAGR and a plug-in iGPS enhancement module, a special -purpose wideband reference signal is generated by the iGPS module and coupled to the DAGR via the existing antenna port, so that no hardware modification of the DAGR is required.

Practical method for upgrading existing GNSS user equipment with tightly integrated Nav-Com capability

A system for standard positioning service (SPS) and precise positioning service (PPS) cooperative operation is disclosed. In one embodiment, a PPS receiver is utilized to process a PPS data portion of a positioning signal. In addition, an SPS receiver is utilized to process an SPS data portion of the positioning signal. Furthermore, the PPS receiver and the SPS receiver are communicatively coupled such that the PPS data portion from the PPS receiver is cross-validated with the SPS data portion from the SPS receiver thereby corroborating the accuracy of the positioning signal.

Method for standard positioning service and precise positioning service cooperative operation

An aircraft weather radar system can be used with a terrain avoidance system to provide a terrain database. The weather radar system includes a processor and/or other electronics coupled to an antenna. The processor determines terrain data based on weather radar returns received from the antenna. The processor can utilize a variety of techniques for determining terrain data or estimates.

Terrain avoidance system and method using weather radar for terrain database generation

A circuit for a display used on an aircraft causes the display to display a composite terrain image The composite terrain image can be formed from first terrain data from a terrain database and second terrain data from a radar system A display control circuit can generate a display signal for the composite terrain image The display signal is received by the display The composite terrain image can be viewed by a pilot

System and method for displaying radar-estimated terrain

An integrated navigation system includes a prime mission navigation system (e.g., a military code GPS-based flight management system), a second navigation system (e.g., a civil code GPS-based navigation system) and an integrity check system. The first navigation system receives first positioning signals and generates a first navigation solution based on the first positioning signals. The second navigation system receives second positioning signals and generates a second navigation solution based on the second positioning signals. The integrity check system receives the first navigation solution and the second navigation solution, compares the first navigation solution to the second navigation solution, and generates a validity signal based on the comparison.

Cris W. Johnson

Papers

Integrated navigation system