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Document Title |
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9024812 |
Systems and methods for providing antenna calibration
Systems and methods for providing antenna calibration can be used in a variety of applications. A method of calibrating an antenna array for use in a traffic advisory system or traffic alert and... |
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9002279 |
System and method for aligning interference in uplink
Provided is a method of generating a transmit beamforming vector and a receive beamforming vector to substantially eliminate the effect of interference transmitted from macro terminals to a pico... |
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8948718 |
Devices and methods using the Hermetic Transform
Systems and methods are described using a Hermetic Transform, as well as related transforms, for applications such as directional reception and/or transmit of signals using phased-array devices... |
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8929192 |
Method, apparatus, and computer program product for short-range communication based direction finding
Method, apparatus, and computer program product example embodiments provide short-range communication based direction finding. According to an example embodiment of the invention, a method... |
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8847587 |
Field generator patch with distortion cancellation
A magnetic field generator includes a substrate, a main generator coil, at least one field sensor, at least one shim coil, a driver circuit and a correction circuit. The main generator coil, the... |
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8760347 |
System of systems approach for direction finding and geolocation
Systems and methods are provided herein that extend well-known direction finding (DF) and geolocation (GEO) concepts and approaches to a plurality of RF sensors to form a System of Systems (SoS)... |
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8674879 |
Antenna arrangement for DOA estimation
An antenna arrangement including at least two antenna functions arranged to cover a certain angular sector, each antenna function comprising a corresponding antenna port. The antenna arrangement... |
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8599071 |
Adaptive antenna radio communication device
A device for estimating a direction-of-arrival of a radio wave, the device comprising an array antenna including a plurality of antenna elements for receiving a high frequency signal, a... |
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8587467 |
Method and apparatus for determining locations of a moving radar
A method for determining locations of a moving emitter is disclosed. Initially, a set of emitter pulses is collected when a collector platform moves over a collection baseline. In addition, the... |
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8576121 |
Method for lateral localization of the wheels of a vehicle
Method for localization of the lateral position of the wheels of a vehicle equipped with a tire pressure monitoring system. Each wheel of the vehicle includes an electronic unit fixed onto a rim... |
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8559883 |
Wireless device and signal path configuration method thereof
A signal path configuration method and apparatus of a wireless device are provided for avoiding radiation performance degradation caused by holding a specific part of the wireless device. A... |
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8405551 |
Location estimation system, method and program
Location estimation systems, methods, and non-transitory computer program products. The system includes: storage means provided in the computer, means for storing the vector datasets in the... |
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8405549 |
Direction finding method and device
A method for determining whether a target is within a direction sector of interest of a direction finder and a device for carrying out the method are disclosed. The method calls for (a)... |
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8405550 |
Near-vertical direction finding and geolocation system
A system and method for geolocating an RF emitter disposed on or near the ground includes receiving a signal from the RF emitter at each antenna of an array of N non-collinear antennas, wherein N... |
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8390514 |
Detection and geolocation of transient signals received by multi-beamforming antenna
A bank of order statistic filters applied to a set of antenna or transducer beams are used to detect and determine the line-of-bearing to the source of transient RF (or other, e.g., acoustic)... |
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8378922 |
System and method for position or range estimation, tracking and selective interrogation and communication
A method of estimating an arc-position of a distal transmitter is disclosed. In one embodiment, the method includes: (1) receiving radio frequency signals from said distal transmitter into an... |
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8340588 |
Handheld synthetic antenna array
A system for estimating parameters of an incoming signal is provided. At least one antenna is coupled to at least one suitable receiver. The antenna(s) are spatially translated in an arbitrary... |
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8305265 |
Radio-based direction-finding navigation system using small antenna
An exemplary radio-based navigation system uses a small multimode direction-finding antenna and a direction-finding receiver capable of determining platform position, velocity, attitude, and time... |
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8301326 |
System and method for autonomous vehicle control
A system for localizing an autonomous vehicle to a target area can include a position indicator adapted for association with the vehicle in a three dimensional configuration, a detection device... |
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8264406 |
Manifold calibration for a communication system
A method and apparatus for determining stream weights is provided herein. During operation, an uplink direction of arrival (DOA) and a downlink direction of departure (DOD) calibration procedure... |
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8264408 |
User-executable antenna array calibration
A system used for calibrating a direction-finding system. A device may include a signal receiver array. The signal receiver array may be utilized to determine the direction of arrival for signals... |
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8260324 |
Establishing wireless links via orientation
A system for establishing a wireless link from a wireless communication device (WCD) to at least one target device. The process of both identifying the target device and establishing a link to... |
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8248304 |
Method for measuring incoming angles of coherent sources using space smoothing on any sensor network
A method for interpolating steering vectors a(θ) of a sensor network, the sensor network receiving signals transmitted by a source, characterized in that, for the interpolation of the steering... |
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8217836 |
Tactical relative navigation using orientation transfer and ranging
A navigation system/solution, suitable for use in a GPS-denied environment, may be implemented via a node, the node being mounted on-board a vehicle, such as a tactical aircraft. The... |
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8203485 |
Method of estimating direction of arrival and apparatus thereof
A method includes generating a correlation vector of baseband-signal vectors based upon signals received from a plurality of sensor devices, generating a generalized Hankel matrix R representing a... |
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8199053 |
Three dimensional RF search system
An RF signal detection process by incorporating direction detection of the RF signal along with energy detection to arrive at a signal of interest (SOI). The SOI is identified by matching... |
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8179319 |
Adaptive optimization of estimation of the angle of arrival of a signal received by an array of antenna elements
A parameter of interest of a signal, such as the angle of arrival of a target signal received by an antenna system having an array of antenna elements, is estimated by (a) obtaining disparate... |
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8144057 |
Methods and apparatus for adaptively determining angles of arrival of signals
A technique for determining the angles of arrival of signals incident on an antenna array from directions within an angular region of interest involves supplying outputs of antenna elements of the... |
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8138974 |
Location estimation system, method and program
A location estimation method using label propagation. The achieved location estimation method is robust to variations in radio signal strengths and is highly accurate by using the q-norm (0
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8130147 |
Signal wave arrival angle measuring device
A signal wave arrival angle measuring device includes: an observation data vector generation section generating an observation data vector necessary for an angle measurement of a signal wave from... |
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8125388 |
Method for calibrating an AOA location system for all frequencies in a frequency hopping signal
A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in... |
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8098155 |
System and method for locating a target wireless device
A method for locating a target wireless device is disclosed. At least one directional antenna is swept through a field of view at each of a plurality of sensing locations. A position is determined... |
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8081106 |
Target ranging using information from two objects
In an embodiment, an apparatus includes a detector, direction finder, receiver, and range finder. The detector is operable to detect a target, and the direction finder is operable to determine a... |
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8063771 |
Marine personal locator apparatus
Marine personal locator system including personal transmitters activated by immersion and a receiver. The transmitter includes a microprocessor adapted to effect transmission of a unique tone... |
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8035562 |
Digital beam-forming apparatus and technique for a multi-beam global positioning system (GPS) receiver
An advanced multiple-beam GPS receiving system is achieved that is capable of simultaneously tracking multiple GPS satellites independently, detecting multiple interference signals individually,... |
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8004463 |
Systems and methods for determining direction-of-arrival
The disclosed system and method for determining direction-of-arrival generally includes an antenna element and a processor. The antenna element may configured to generate a signal in response to... |
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7990314 |
Method and system for locating a geographical position using broadcast frequency modulation signals
A method and system for locating and positioning using broadcast frequency modulation (FM) signals, is provided. One implementation involves receiving FM stereo signals from three FM stations at... |
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7982670 |
Method and system for estimating directions-of-arrival in low power or low sample size scenarios
The present invention relates to a method and a system for determining the direction of arrival of one or multiple radio or acoustic waves and, more particularly, to such a method and system... |
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7973715 |
Determining a direction of arrival of signals incident to a tripole sensor
A system to determine a direction of arrival of each of a plurality of constituent signals of a superimposed wave includes a tripole radio antenna, a sampling unit, a frequency determining unit,... |
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7969360 |
High resolution, arbitrary-even-order direction finding method and device
Method of high-resolution direction finding to an arbitrary even order, 2q (q>2), for an array comprising N narrowband antennas each receiving the contribution from P sources characterized in that... |
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7948438 |
Determining the angle of arrival of a target signal received by an array of antenna elements
In a system for determining the angle of arrival of a target signal received by an array of antenna elements, a receiver obtains observations of a received target signal from an array of antenna... |
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7940215 |
Adaptive antenna radio communication device
An adaptive antenna radio communication device comprises a divided band direction estimating unit for estimating the direction by calculating the cross correlations between a pilot signal and... |
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7912449 |
Method and system for 60 GHz location determination and coordination of WLAN/WPAN/GPS multimode devices
Within a local region, information may be communicated between two or more wireless multimode communication devices (WMCD) comprising 60 GHz band and lower frequency band wireless interfaces.... |
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7876264 |
Method of source number estimation and its application in method of direction of arrival estimation
The present invention provides a method of source number estimation based on eigenspace in DOA estimation, including: (1) obtaining signals received by uniform linear array; (2) calculating a... |
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7848748 |
Method for characterising emitters by the association of parameters related to the same radio emitter
Method of using one or more transmitters and/or one or more parameters associated with a transmitter by using a reception station comprising a device suitable for measuring over time a set of K... |
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7847733 |
Direction-of-arrival estimating device and program
An arriving direction estimating device for estimating the arriving direction of an arriving wave with high accuracy and at high speed by using a sensor array. The arriving direction estimating... |
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7822141 |
Multiple input, multiple output communications systems
Embodiments of the present invention include systems and methods for optimizing the transmitter and receiver weights of a MIMO system. In one embodiment, the weights are optimized to create and... |
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7804449 |
Method for angle of arrival determination on frequency hopping air interfaces
A method for calibrating an antenna and signal processing system enabling angle of arrival (AOA) determination for a frequency hopping signal, in which a calibration coefficient is determined in... |
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7791537 |
Radio monitoring apparatus and method
Disclosed is radio monitoring apparatus which includes a radio station distinction unit, a direction measurement unit, a transmission source location estimation unit and a transmission source... |
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7787989 |
Method for controlling an autonomous mobile robot and related device
The invention concerns a navigation device for a mobile robot comprising means for measuring the amplitude and the phase of an electromagnetic signal emitted by a wire acting as limit for a... |