Abstract: A SYSTEM FOR DETECTING AND VISUALIZING TARGETS BY AIRBORNE RADAR, comprising a plurality of N antennae with a narrow beam in elevation and wide in azimuth, regularly disposed on a rotary base coupled to an engine, the elevation orientations of said antennae being staggered according to a defined pattern, each antenna being associated to a radar device endowed with computer means furnishing information relating to distance, azimuth, elevation and speed of fixed and moving obstacles above and below the plane of said rotary base. Some antennae point towards a place above the horizon, the angles of view being progressively descending so as to cover a volume that extends above and below the plane of the horizon, and may reach the ground. Said volume results from the sum of the volumes of superimposed cones, each cone corresponding to an elevation angle. The system combines the images of the N conical volumes to provide the pilot or operator a three-dimensional image.

Abstract: A SYSTEM FOR DETECTING AND VISUALIZING TARGETS BY AIRBORNE RADAR, comprising a plurality of N antennae with a narrow beam in elevation and wide in azimuth, regularly disposed on a rotary base coupled to an engine, the elevation orientations of said antennae being staggered according to a defined pattern, each antenna being associated to a radar device endowed with computer means furnishing information relating to distance, azimuth, elevation and speed of fixed and moving obstacles above and below the plane of said rotary base. Some antennae point towards a place above the horizon, the angles of view being progressively descending so as to cover a volume that extends above and below the plane of the horizon, and may reach the ground. Said volume results from the sum of the volumes of superimposed cones, each cone corresponding to an elevation angle. The system combines the images of the N conical volumes to provide the pilot or operator a three-dimensional image.

Abstract: An arrangement and method for displaying and transferring information between a vehicle and at least one transmitter separate from the vehicle includes an antenna mounted on the vehicle for receiving RF wireless signals emitted by each transmitter, a location determining device for determining the vehicle's location, a display arranged on the vehicle in a position to be viewable by a vehicle occupant and to display representations of the vehicle and other objects in the vicinity of the vehicle, and a processor coupled to the antenna, location determining device and display. The processor performs location-based filtering of signals received by the antenna to determine whether any contain information of interest for vehicular operation, extracts the information of interest from the signals determined to contain information of interest, and displays the location of the transmitter of the signals determined to contain information of interest or the information of interest from the transmitter.

Abstract: Method for avoiding collisions between a host vehicle and other vehicles in which the position of the vehicles is determined, the vehicles are equipped with a transmitter/receiver, and in the host vehicle, the possibility of a collision involving the host vehicle is assessed by receiving signals from the transmitter/receivers of each other vehicle, analyzing the received signals to extract positional information about the transmitter/receivers from each signal, and when a received signal contains additional information of interest about a possible collision involving the host vehicle, analyzing the extracted positional information to determine whether any signals contain additional information of interest about a possible collision involving the host vehicle. Additional information is extracted only from such signals and analyzed to ascertain whether a collision between the host vehicle and any other vehicles is likely to occur in order to enable action to be taken to prevent the collision, e.g.

Abstract: Arrangement for transferring information between a vehicle and one or more transmitters separate from the vehicle includes an antenna mounted on the vehicle and capable of receiving radio frequency waves emitted by the transmitter and containing information, a position determining device for determining the position of the vehicle, and a processor coupled to the antenna and the position determining device and arranged to analyze the waves received by the antenna, determine whether any received waves contain information of interest for operation of the vehicle based on the vehicle's position as determined by the position determining device, and extract the information of interest only from the received waves determined to contain information of interest. The information of interest may be information about the transmitter such as its location, speed, velocity, etc., or information relating to road conditions, weather and the like.

Abstract: Method for transferring information between a vehicle and a transmitter in which a unique pseudorandom noise signal is transmitted by the transmitter in a carrier-less fashion composed of frequencies within a pre-selected band. Information is encoded in the noise signal relating to an identification of the transmitter and a position of the transmitter and the vehicle is provided with a device for extracting the information from the noise signal. The code to use for encoding the noise signal may be selected based on the position of the transmitter so that analysis of the code, or a portion thereof, provides an indication of the position of the transmitter. Information about accidents, weather conditions, road conditions, map data and traffic control devices and about errors in a GPS signal can also be encoded in the noise signals.

Abstract: Method for transferring information between a vehicle and a transmitter in which a unique pseudorandom noise signal is transmitted by the transmitter in a carrier-less fashion composed of frequencies within a pre-selected band. Information is encoded in the noise signal relating to an identification of the transmitter and a position of the transmitter and the vehicle is provided with a device for extracting the information from the noise signal. The code to use for encoding the noise signal may be selected based on the position of the transmitter so that analysis of the code, or a portion thereof, provides an indication of the position of the transmitter. Information about accidents, weather conditions, road conditions, map data and traffic control devices and about errors in a GPS signal can also be encoded in the noise signals.