Matches 51 - 100 out of 166 < 1 2 3 4 >
Match Document Document Title
5786773 Local-area augmentation system for satellite navigation precision-approach system  
An aircraft local-area augmentation system that employs a differential global positioning system (GPS) to assist aircraft (102) landing is disclosed. One or more GPS ground stations (120), each...
5748136 Electronic landmark enhancement to GPS based navigation systems  
A system and apparatus for enhancing the satellite based navigation systems which includes providing an aircraft with an interrogating radar for interrogating beacons disposed at a predetermined...
5736955 Aircraft landing/taxiing system using lack of reflected radar signals to determine landing/taxiing area  
A system for displaying a landing/taxiing area as an aircraft approaches/taxis that landing/taxiing area. The system includes means on the landing/taxiing area that absorbs radar signals. The...
5731784 Adaptive pulse shaping implementation and method for control of solid state transmitter spectrum and time sidelobes  
A radar detection system includes a transmitter and a receiver. The transmitter generates a pulse including a first subpulse generated at a first predetermined frequency and a second subpulse...
5724040 Aircraft wake vortex hazard warning apparatus  
An apparatus for monitoring the position of objects in a space including a target supervisor, a location supervisor, and a hazard monitoring supervisor. The apparatus can detect and respond to a...
5719567 System for enhancing navigation and surveillance in low visibility conditions  
A system for enhancing navigation or surveillance in low visibility conditions is realized by employing one or more ultraviolet radiation sources, a receiver which is capable of producing output...
5716032 Unmanned aerial vehicle automatic landing system  
An automatic landing system for guiding an unmanned aerial vehicle along a predetermined path to a predetermined point on the ground. The system includes an image processing means resident in the...
5702070 Apparatus and method using relative GPS positioning for aircraft precision approach and landing  
A relative GPS landing system is provided for approach and landing of aircraft where an accurate site survey of the GPS platform is unavailable. Data containing information on all GPS satellites in...
5677685 Device for assistance in the piloting of an aircraft  
This optoelectronic device is designed to provide assistance in the piloting of an aircraft under conditions of poor visibility, at the final approach stage, during taxiing and at take-off from a...
5661486 Aircraft landing aid device  
The disclosure is an aircraft landing aid device that includes at least a database containing signatures and positions of reference objects, a sensor picking up signatures of reference objects,...
5654890 High resolution autonomous precision approach and landing system  
An aircraft including an approach and landing system, including a navigation unit for providing navigation information, a weather radar unit for providing radar information, a processor which...
5614908 Helicopter system with rotor blade antennas for landing assistance and for detection of electro-magnetic anomalies  
A system for assistance in landing a helicopter and for the detection of electro-magnetic anomalies utilizing helicopter blades as carriers of receiving devices in a wide spectrum of...
5483241 Precision location of aircraft using ranging  
A millimeter wave radar is placed on an aircraft and several radar targets are placed near a runway. The targets are discrete objects, each having a relatively localized radar cross section, a...
5361212 Differential GPS landing assistance system  
An aircraft landing system is disclosed in which a differential GPS global positioning system is employed. A ground station, located in the vicinity of one or more landing strips, includes a GPS...
5302957 Passive ranging system  
A passive distance measuring system for aircraft landing or other transportation related or other general usage is disclosed. The passive system operates by measuring the time interval between...
5287104 Method and apparatus for aiding a landing aircraft  
A method and apparatus for aiding a landing aircraft. Three differently-colored beams of laser light are produced and transmitted, one of the beams of laser light being transmitted in a plane...
5235513 Aircraft automatic landing system  
The invention provides a system for determining the spatial position of a moving object and for guiding its movement, which system comprises a triangular arrangement of three light sources attached...
5208601 All-weather precision landing system for aircraft in remote areas  
An all-weather aircraft landing system includes a plurality of ground based passive 90° dihedral reflectors for producing two-bounce reflected signals without ground reflections, and an airborne...
5136297 Method for navigation and updating of navigation for aircraft  
A method of using a method for navigating and updating of navigation for aircract under utilization of sensor image processing and reference store data, for purposes of automatic or assisted...
5119090 Aeronautical optical guidance system  
Optical guidance system for the night landing of aircraft on a landing area along a determined approach path, which comprises two horizon reference luminous bars (1, 2) disposed in alignment with...
5043726 Spectral analyzer and direction indicator for laser guided aircraft landing system  
A spectral analyzer and direction indicator system (10) is disclosed and includes optical channels (20,30,40) for providing detected optical information indicative of incidence direction and...
5022751 Portable localizer siting system  
A portable siting system particularly useful for siting a portable localizer for a collocated approach guidance system for aircraft utilizes a laser range finder in conjunction with a shaft encoder...
5014053 Method and apparatus for determining actual lateral deviation from runway centerline  
A method of and apparatus for determining the actual lateral deviation from the centerline of a runway of an aircraft located outside the normal region covered by a glideslope beam is disclosed....
4990921 Multi-mode microwave landing system  
A guidance system for landing an aircraft is described which uses a source of signals identifiable with the aircraft and a ground station which is linked to the aircraft. Specifically, the ground...
4972321 Lateral axis rollout control for aircraft  
Apparatus for guiding an aircraft along the center line of a runway at rollout touchdown. A rollout predict path command is generated in accordance with a first path segment Y 1 =T 1 (Y m +Y u...
4951056 Collision detection system  
The detection, by doppler frequencies in reflected wave energey, of an obt, such as an obstruction on a landing surface approached along a path at a shallow angle to the surface, using doppler...
4940986 Millimeter wave locating  
A system for landing aircraft during low visibility includes a number of millimeter wave sources in or near the runway light housings radiating millimeter wave beams along the runway. An airborne...
4925303 Aircraft piloting aid laser landing system  
A piloting aid system for landing an aircraft in either normal or adverse weather conditions is disclosed. The system applies a laser scanning process for determining and correcting the aircraft's...
4866450 Advanced instrument landing system  
A system for landing an aircraft is described, using a ground installation and an airborne installation which are synchronized together using GPS system time. Specifically, the ground installation...
4862164 Infrared aircraft landing system  
A portable infrared landing site illumination system is provided for fixed ing and rotary wing aircraft having night vision capabilities as provided by the Army's second generation goggles (PVS-5)...
H000628 Universal automatic landing system for remote piloted vehicles  
An automatic landing system for landing remotely piloted flying vehicles ng a predetermined path and at a predetermined point. The system includes an autopilot carried by the flying vehicle for...
4806932 Radar-optical transponding system  
An airport landing system includes an airborne transmitter and receiver for transmitting RF energy at a first frequency and receiving RF energy at a second frequency. A stationary RF energy...
4723123 Radar system  
A radar system comprising an RF transmitter and receiver means for mounting in a moving carrier for transmitting RF energy and receiving RF energy returns and a non-rotating modulating radar...
4680587 Instrument landing system  
In a single-frequency precision guidance landing system, the use of a DME interrogator in the aircraft and a DME receiver at the ground installation, each tuned to the same DME channel frequency,...
4667196 Active visual display system for remote three-axis flight path guidance of landing aircraft  
An active, electro-optical display system for use on fixed-wing, land-based airport runways, is disclosed for remotely guiding a pilot during visual approach and landing of an aircraft....
4250505 Independent landing monitor  
This invention comprises means for monitoring the operation of an aircraft landing guidance system which functions independently of the landing guidance system. The means include a radio altimeter...
4167735 Aircraft orientation determining means  
A system for measuring, in conjunction with a GCA radar, the crab angle of n aircraft which is making its landing approach above a runway just prior to touch-down. Two doppler radars are placed,...
4156240 System for providing angular deviation data for locating a transmitter  
Disclosed is a system for locating a transmitter arranged for transmitting frequency-modulated signals. The system supplies data about the angular deviation between the direction of the transmitter...
4126859 Ground station for a round-trip-path distance-measuring system  
This DME ground station permits the distance from the touchdown point (where no transponder can be installed) to be measured on the aircraft without any change in the airborne equipment. The time...
4104634 Ground plane corner reflectors for navigation and remote indication  
A device to be used as a guidance system for sonar or radar or similar transmissions in which a dihedral reflector is used in association with part of the earth's surface (land or sea) whereby a...
4103300 Air navigation and landing aid system  
An air navigation and landing aid system wherein a pair of transponder beacons are located at known positions adjacent an airport runway. The aircraft carries a weather pulse radar system and an...
4050069 Transponder based landing system  
An air traffic control system wherein a ground based interrogator/receiver nterrogates an aircraft transponder which, in addition to responding to the interrogation, also transmits automatic...
3999007 Aircraft visual approach/landing reproducer device and system  
A cockpit-mounted cathode ray tube presents to the pilot a visual equivalent of the approach/landing during obscure visibility of an aircraft which contains a miniature illuminated runway that is...
3988731 Augmented perspective radar display  
Control circuits are provided in a perspective radar display to modify the vertical sweep wave form voltage function on the display cathode ray tube to correspond to the sweep function which would...
3943509 Navigation aiding systems with one-way ranging and two-way synchronization  
A navigation aiding system primarily for aircraft consists of a number of spaced apart ground stations. A ranging signal is transmitted to each of a number of aircraft in turn in response to...
3908189 Airborne radar instrument landing system  
An ILS (instrument landing system) utilizing a modified weather radar system of the aircraft and a retrodirective antenna located at the touchdown point and modulated so as to generate conventional...
3896432 Perspective radar airport recognition and landing guidance system  
A self-contained perspective radar system is modified and improved by providing an additional display on the radar screen in accordance with known information such as the range and bearing of the...
3875551 Runway approach radar reflectors  
An airport runway radar reflector system cooperates with a rapid scanning self contained radar in an approaching aircraft in a manner to simulate a large mirror placed in front of the aircraft...
3866222 PERSPECTIVE RADAR DISPLAY USING LINEAR VERTICAL SWEEP  
A perspective radar display is provided on a cathode ray tube having a linear vertical sweep by feeding the video echo return signals to the video input of the cathode ray tube in a non-linear...
3866218 Scanning radar azimuth position control system  
An adjustable phase shifter is connected between a radar scanning beam position sensor which provides an output wave form in accord with the azimuth position of a radar beam and the horizontal...
Matches 51 - 100 out of 166 < 1 2 3 4 >