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Document Title |
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8149154 |
System, method, and software for performing dual hysteresis target association
In certain embodiments, a method includes receiving first track information comprising data for a particular aircraft track. The method further includes receiving a first radar plot comprising...
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8120525 |
Systems and methods for obtaining aircraft state data from multiple data links
Systems and methods are delineated that may provide for a system for use in a merging and spacing application for an aircraft. An exemplary system may comprise a TCAS and a processor for executing...
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7956796 |
Detecting device and railroad vehicle
A system according to the invention detects location information of a vehicle by using a reflection strength change of an electromagnetic wave. The system incorporates a radiowave transmitter which...
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7952512 |
Mobile device enabled radar tags
A method is provided for mobile device enabled radar tags. A signal is transmitted to a radar tag. The radar tag detects the signal. The radar tag provides information. The information is received...
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7889114 |
Radar target processing reduction systems and methods using cooperative surveillance sources
Systems and methods for reducing radar target processing. The systems include a processor configured to receive a first input from a cooperative surveillance source and a second input from a radar...
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7847722 |
Secondary surveillance radar and method of analyzing replies for secondary surveillance radar
Provided is a secondary surveillance radar with an improved capability of eliminating an unnecessary Mode A/C target report, which includes a transmission unit transmitting interrogations, a...
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7817079 |
System and method for collection of global AIS and radar track information
Methods and apparatuses are described that enable the automatic collection of maritime vessel location information within a global or regional framework by using a minimum network of vessels...
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7786923 |
Interrogator of communication system
An interrogator that is to be incorporated in a communication system in which each of at least one transponder is operable, upon reception of a main carrier wave transmitted from the interrogator,...
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7777666 |
Celestial body mapping systems and methods
Systems and methods for mapping a surface of a celestial body containing objects and terrain are provided. One system includes a Synthetic Aperture RADAR (SAR) module configured to capture a...
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7660668 |
Method and device for controlling at least one deceleration device and/or an output-determining actuating element of a vehicle drive device
A device and a method for triggering at least one deceleration device and/or one output-determining actuator element of a vehicle propulsion system, in particular for automatic longitudinal vehicle...
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7612708 |
RF system for tracking objects
A system for tracking an object in space for position, comprises a transponder device connectable to the object. The transponder device has one or several transponder aerial(s) and a transponder...
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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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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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7504992 |
Wireless system using continuous wave phase measurement for high-precision distance measurement
A system and method for monitoring topological changes in a defined area. A grid of sensors is arranged in the area, with known distances between them. The sensors communicate wirelessly with a...
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7492307 |
Collision risk prevention equipment for aircraft
This equipment is of the TCAS type. In order to improve its integrity and the reliability of its measurements, its computing unit is provided with a cross-checking function carrying out the...
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7486226 |
Device and a method for accurate radar level gauging
The invention relates to a system, device, and method for using radar signals to measure the distance (h) to a surface from said device, the device comprising a transmitter and a transmitting...
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7479884 |
System and method for monitoring objects, people, animals or places
An improved system and method for monitoring objects, people, animals, or places uses a passive Modulating Reflector (MR) tag where an antenna is alternately short and open circuited according to a...
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7479919 |
Surface vehicle transponder
Systems and methods for alerting surrounding aircraft if a ground-based unit is a threat. One example system is located on a ground-based unit. The system includes a position sensor that senses...
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7460059 |
Removing interfering clutter associated with radar pulses that an airborne radar receives from a radar transponder
Interfering clutter in radar pulses received by an airborne radar system from a radar transponder can be suppressed by developing a representation of the incoming echo-voltage time-series that...
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7372398 |
Electronic target position control at millimeter wave for hardware-in-the-loop applications
An apparatus for use in controlling a simulated target position in a millimeter wave, hardware-in-the-loop system includes a pair of horns and a conditioning circuit. The conditioning circuit is...
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7292822 |
Wireless communication system using surface acoustic wave (SAW) second harmonic techniques
An IDT produces a SAW when excited by a single electrical pulse and can be fabricated to embody a code, which code provides for a passive autocorrelation of a SAW input to the IDT and thereby lends...
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7218273 |
Method and device for boresighting an antenna on a moving platform using a moving target
A technique for boresighting an antenna mounted on a moving platform is described. The technique uses a concurrently moving calibration target. Target navigation data and platform navigation data...
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7209071 |
System and method for distance measurement
A system and method for performing distance measurement using wireless signals. A time of flight calculation is enabled by an interrogating device that transmits an interrogation signal to a...
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7196654 |
Vehicle positioning and tracking radar system
A vehicle positioning and tracking radar system includes a rotating antenna with a pair of spatially separated transmit feeds for simultaneously transmitting a pair of frequency-modulated...
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7164380 |
Interrogator and goods management system adopting the same
An interrogator with an antenna that allows information exchanges with multiple transponders in a shorter distance of communication, by securing an intensified and uniform electromagnetic energy...
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7121502 |
Pseudo GPS aided multiple projectile bistatic guidance
A guidance system for guiding each of several projectiles toward a moving target has a platform having a radar system for illuminating the target with a radar signal. Each projectile has a receiver...
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7119736 |
Transponder system and method for measurement of separation
Separation determination systems for determining the separation between a base station and a transponder, whereby the base station includes an oscillating signal source, for generating a signal and...
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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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6985103 |
Passive airborne collision warning device and method
A passive airborne mounted collision warning system suitable for light aircraft that enables an observer aircraft to determine the position of a nearby transponder-equipped target aircraft. The...
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6861971 |
Transponder having high phase stability, particularly for synthetic aperture radar, or sar, systems
A transceiver or transponder particularly for synthetic aperture radar, or SAR, systems, operating in a frequency band having a central frequency, the transponder comprising a receiver (1) and a...
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6842138 |
Target designation system
A target designation system for indicating a target to be destroyed by remotely guided ordnance comprising a receiver arranged to produce a receiver output signal in response to an incident...
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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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6778128 |
Method of locating underground utility lines and an underground utility line
A method of locating an underground utility line. A first step involves securing transponders along a length of an underground utility line at regular spaced intervals. A second step involves...
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6768465 |
Low probability of intercept (LPI) millimeter wave beacon
A millimeter wave beacon includes a millimeter wave transmitter that produces at least one signal and plurality of antennas, coupled to the millimeter wave transmitter, that each emit millimeter...
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6747594 |
Calibration of differential frequency-dependent characteristics of a radio communications system
A method and apparatus are provided that determine a frequency dependent calibration vector for a set of transmit or receive chains of a radio communications system using only differential phase...
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6745008 |
Multi-frequency communication system and method
A multi-frequency RFID remote communication system is provided that includes a plurality of RFID tags configured to receive a first signal and to return a second signal, the second signal having a...
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6693581 |
Device for transmitting data in a motor vehicle
A device for data transmission in a motor vehicle and/or from a motor vehicle in its vicinity includes a first transceiver unit in or on the motor vehicle and a second transceiver unit. which is...
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6630900 |
Process for carrying out a non-contact remote interrogation
The invention relates to a system suitable for a remote interrogation of passive transponders using chirp signals for interrogation. The transponder preferably has an encoding unit (11), a...
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6614385 |
Police activity transponder utilizing a vehicle interface
A police activity transponder utilizes data available through a vehicle on-board diagnostic system or a intelligent vehicle data bus to adjust the sensitivity of the police activity transponder to...
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6611224 |
Backscatter transponder interrogation device
A backscatter transponder interrogator, comprising a transmitter, emitting an interrogation signal for interacting with a backscatter transponder within an interrogation field, a plurality of...
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6587069 |
Distributed power amplifier architecture for TCAS transmitter
A transmitter and method for transmitting transponder or TCAS signals uses linear amplification to save on circuit component weight, cost and size while enabling precise amplification and control...
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6567038 |
Tracking system for sports
A cooperative tracking system designed to track multiple cooperative targets within a given field in real time with high precision and high update rate comprises a microwave transmitter and two...
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6529156 |
Self calibration of transponder apparatus
A method and apparatus is provided for remotely and constantly calibrating a transponder by using the ring around phenomenon. A number of different time varying physical quantities, such as for...
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6529154 |
Method and apparatus for reading two dimensional identification symbols using radar techniques
A method and apparatus are provided for sensing two-dimensional identification marks provided on a substrate or embedded within a substrate below a surface of the substrate. Micropower impulse...
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6507310 |
Radar device for detecting response signal
When a question signal of a transmitting frequency band ΔF1 output from a radar device is received in search and rescue radar transponder (SART) of a wreck ship, a response signal is sent from the ...
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6492933 |
SSB pulse Doppler sensor and active reflector system
A dual channel microwave sensor employs single sideband Doppler techniques in innumerable vibration, motion, and displacement applications. When combined with an active reflector, the sensor...
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6462698 |
Wireless communication system using surface acoustic wave (SAW) single-phase unidirectional transducer (SPUDT) techniques
SAW devices such as interdigital transducers (IDTs) have been widely used in RADAR applications and as filters. An IDT produces a SAW when excited by a single electrical pulse and can be fabricated...
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6452535 |
Method and apparatus for impact crash mitigation
A pre-crash sensing system is provided for sensing an impact of a target vehicle (46) with a host vehicle (12). The target vehicle (46) has side transponders that generate side identification...
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6420994 |
Volume in space locator
Methods and apparatus for determining location information corresponding to a volume in space (VIS) that is occupied by a selected target from a remote observation platform through the process of...
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6407695 |
Process for carrying out a non-contact remote enquiry
The invention relates to a system suitable for a remote interrogation of passive transponders using chirp signals for interrogation. The transponder preferably has an encoding unit (11), a...
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