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7619557 |
Method and device for filtering a video signal received by a secondary radar, particularly in order to eliminate mode S replies
The invention applies to secondary radars. It makes it possible to carry out filtering when seeking to detect SSR responses, these SSR responses being overlapped by a mode S response. According to...
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7616149 |
Methods and apparatus for radar time sensor
Methods and apparatus to detect and measure energy transmission or azimuth angle information from a radar system at one or more known or measured azimuth angles, determine, for each azimuth angle,...
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7612705 |
Mode S radar
Disclosed is a Mode S radar which specifies an aircraft by transmitting interrogations to an aircraft A equipped with a Mode S transponder, and by then receiving and decoding replies corresponding...
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7598905 |
Systems and methods for monitoring transponder performance
There are presented various approaches to monitor performance of RF systems and circuitry such as those used in aircraft transponders. Such monitoring may be designed to verify operational...
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7570195 |
High-capacity location and identification system for cooperating mobiles with frequency agile and time division transponder device on board
Cooperating mobiles (ground vehicles, aircraft) are located and identified by Multilateration and Automatic Dependent Surveillance-Broadcast (ADS-B) techniques using the frequency band and the...
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7570194 |
High precision surveillance system by means of multilateration of secondary surveillance radar (SSR) signals
A system able to locate and identify aircraft and vehicles based on the reception and processing, with novel means and methods, of signals emitted by the transponder of the secondary surveillance...
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7567203 |
Classification system for radar and sonar applications
A system and method for target classification for an aircraft surveillance radar is provided. In one implementation, the track classifier provides tracks with an updated probability value based on...
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7501977 |
Mode S radar
Disclosed is a Mode S radar which specifies an aircraft by transmitting interrogations to an aircraft A equipped with a Mode S transponder, and by then receiving and decoding replies corresponding...
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7495602 |
Single air traffic control (ATC) operator interface
Systems and methods for communication using a plurality of data link standards through a common operator interface are disclosed. In one embodiment, the system includes components configured to...
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7495600 |
Airfield surface target detection and tracking using distributed multilateration sensors and W-band radar sensors
An airport surface target detection, classification and tracking system using a network of multilateration (SSR) sensors and W-band radar sensors is used to provide automatic location and tracking...
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7430415 |
Real-time programming of electronic radio system resource assets
A method to efficiently implement a reconfigurable electronic radio system ( 400 ) including resource assets ( 402 - 408, 410 - 416, 418, 420 - 426, 428 ) and a processor ( 428 ). The processor (...
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7429950 |
Method and apparatus to extend ADS performance metrics
A method and system are provided for measuring and monitoring performance metrics of a non-ADS-B tracking system and generating performance metrics for the non-ADS-B tracking system in terms of...
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7420501 |
Method and system for correlating radar position data with target identification data, and determining target position using round trip delay data
A method and system for using a single transceiver to correlate radar position data with target identification data. Two transceivers, operating in round trip delay mode, can be used to provide two...
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7408498 |
Secondary surveillance radar and its interrogation transmission method
An interrogation transmission method of a secondary surveillance radar compares prediction angle ranges for transmitting interrogations with a beam-width of an antenna, and transmits the...
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7408497 |
Method and device for determining a reference value of a response, in particular of a mode S response received by a secondary radar
The present invention applies to the surveillance of, in particular civil, air traffic, and more particularly, to cooperative aircraft ground systems which make it possible to pinpoint in radial...
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7391359 |
Mode S transponder transmission signal decoder and Mode S transponder transmission signal decoding method
There are provided a differential processing unit which performs differential processing for a Mode S transponder transmission signal, an auto correlation arithmetic operation unit which performs...
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7352318 |
Method and system for real time pulse processing in ATCRBS/Mode-S transponders
An apparatus for processing pulses in ATCRBS/Mode S interrogations includes an antenna for receiving a radio frequency interrogation signal. The radio frequency interrogation signal is...
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7256728 |
Aircraft avoidance system for prohibiting an aircraft from entering an exclusion zone
The present invention relates to an avoidance system and method for directing an aircraft away from an exclusion zone. The exclusion zone may be any three dimensional space for example about a...
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7170441 |
Target localization using TDOA distributed antenna
This invention is a system and method of locating a target using distributed antenna. The antenna consists of several receiving elements in known locations. At least one of the receiving elements...
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7136643 |
Real-time programming of electronic radio system resource assets
A method to efficiently implement a reconfigurable electronic radio system ( 400 ) including resource assets ( 402–408, 410–416, 418, 420–426, 428 ) and a processor ( 428 ). The processor (...
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7095360 |
Secondary surveillance radar system, ground equipment for use therein, and response signal checking method applied thereto
A secondary surveillance radar system for use in surveillance of an airspace, which reliably achieves surveillance of the airspace even when an aircraft including a mode S transponder and an...
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7015856 |
Device and method for SPR detection in a Mode-S transponder
A Mode-S transponder is provided for detecting synchronization phase reversal (SPR) signals. The transponder includes a receiver for receiving a Mode-S signal that contains a P6 pulse having a...
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7012552 |
Civil aviation passive coherent location system and method
A civil aviation passive coherent location system and method is disclosed. A receiver subsystem receives reference transmissions from an uncontrolled transmitter. The receiver subsystem also...
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7006032 |
Integrated traffic surveillance apparatus
An apparatus and method for combining the functionality of multiple airborne traffic surveillance systems that operate in the L-band frequency range. The apparatus and method combine the...
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6825795 |
Transponder lock
A transponder lock provides allows an aircraft transponder to continue transmitting an alerting code for the duration of an emergency. The transponder lock thereby enables the aircraft transponder...
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6819282 |
Super-resolution processor/receiver to discriminate superimposed secondary surveillance radar (SSR) replies and squitter
A super resolution processor/receiver to discriminate superimposed secondary surveillance radar (Mode S, Mode A/C) replies and squitter that uses frequency-domain analysis to suppress interference...
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6816105 |
Vehicle surveillance system
An algorithm for improved tracking of Air Traffic Control Radar Beacon System transponders is disclosed. The algorithm can be combined with a system that includes an interrogator which transmits an...
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6809679 |
Surveillance system and method for aircraft approach and landing
A system and method for measuring and predicting information on the position of approaching aircraft are disclosed. The system features a processor, an interrogating antenna, a receiving antenna,...
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6744396 |
Surveillance and collision avoidance system with compound symbols
A surveillance and collision avoidance system provides a presentation of situational awareness information for display that includes a compound symbol for each target spaced at a distance and...
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6628225 |
Reduced split target reply processor for secondary surveillance radars and identification friend or foe systems
A method of processing reply signals received in response to an interrogation by a secondary surveillance radar system. The method includes the steps of receiving a reply signal from each of a...
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6617997 |
Method of determining radio frequency link reliability in an aircraft tracking system
An aircraft system and method for determining when to attempt acquisition of an intruder for active tracking. A link reliability score associated with the intruder is adjusted based upon the signal...
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6573858 |
Tandem-cycle target/track assignment method in combined radar/ADS surveillance environment
A target/track assignment method for a combined radar/ADS surveillance environment uses tandem cycles to help the air traffic control system update the order of system tracks, thereby permitting...
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6567037 |
Tracking data fusion method in combined radar/ADS surveillance environment
A tracking data fusion method used in a combined radar/ADS surveillance environment defines track states, track types, and track types transition rules to track aircraft. The best available flight...
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6545631 |
Integrated datalinks in a surveillance receiver
A surveillance transceiver system is provided for receiving extended squitters from Mode S transponders, translating the squitters into ADS-B state vectors in UAT format, and transmitting the ADS-B...
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6542809 |
Method and system for displaying target vehicle position information
A system and method for displaying target vehicle position that combines the data available from a plurality of surveillance sensors. Data from the plurality of sensors is fused to calculate a...
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6476757 |
Secure I/P
An improvement in the present radar/IFF equipment used by the military whereby the transponding equipment, when used in crypto-secure Mode 4 , is enabled to reply with its unique coded...
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6473027 |
False reflected target elimination and automatic reflector mapping in secondary surveillance radar
A method for eliminating signals from false targets in a secondary surveillance radar system includes the steps of obtaining plots of radar data for the same target. The range from the radar system...
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6433729 |
System and method for displaying vertical profile of intruding traffic in two dimensions
A circuit and method for displaying a vertical profile view of situational awareness information.
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6420993 |
Air traffic control system
An apparatus and techniques for predicting conflicts between maneuvering aircraft which does not provide an excessive number of false alarms. The techniques utilize information to limit the time...
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6359583 |
Ground based millimeter wave imaging system
System and methods for a ground based millimeter wave imaging system that provides real-time millimeter wave images of an airport to one or more aircraft from one or more ground stations ( 18 )....
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6356228 |
Automatic airport information transmitting apparatus
There is provided an automatic airport information transmitting apparatus comprising: airport-inside-target detecting means for detecting a target inside an airport; target judging means for...
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6344820 |
Passive SSR system
A reply is received from aircrafts for calibration in response to an interrogation of SSR stations to detect transmission timing of the interrogation of the SSR stations and directly-facing timing...
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6337652 |
SSR station and aircraft secondary surveillance network
An SSR reply, which is sent out from an aircraft, is received and separated into one SSR reply to one SSR station and the other SSR reply to the other SSR station, thereby generating aircraft...
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6313783 |
Transponder having directional antennas
A method and apparatus for transmitting a directional reply signals in response to Air Traffic Control Radar Beacon System and Mode Select signals interrogation signals. Two directional antennas...
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6297727 |
Transponder identification and record assembly
Transponder identification record assembly is suitable for associating an identification code with a code recipient and for maintaining an independent record of the identification code associated...
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6282487 |
Runway reservation system
Weather information is stored in a weather information storage unit. Information of aircraft flight situation, flight plan, air traffic flow management, and condition status is stored in an...
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6222480 |
Multifunction aircraft transponder
A combined airborne Air Traffic Control Radar Beacon System/Mode-Select (ATCRBS/Mode-S) surveillance system and Traffic Alert and Collision Avoidance (TCAS) collision avoidance system device having...
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6211810 |
Adaptive dwell timing for radar tracking
In an air traffic control radar system, a processor is described for correlating primary target data received from a target with a target report and a target track, wherein the processor has a...
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6178391 |
Method for partitioning an integrated ground air traffic management communications system
A method for designing an aircraft to ground communications system identifies a plurality of unique functions in the communications system. The components, hardware and software, necessary to...
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5969664 |
Method for characterizing air traffic control radar beacon system antenna patterns
A method for measuring and characterizing the Air Traffic Control Radar Beacon System without interrupting service which comprises a computer-controller system which captures the beacon radar...
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