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7567202 |
Radar system
Embodiments of the invention are concerned with a radar system, and relates specifically to scanning radar systems that are suitable for detecting and monitoring ground-based targets. In one...
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7551680 |
Wireless communication method and apparatus for forming, steering and selectively receiving a sufficient number of usable beam paths in both azimuth and elevation
A wireless communication method of exploiting the radio frequency (RF) physical environment to establish a sufficient number of usable multiple paths of RF propagation for facilitating...
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7535410 |
Weight calculation method, weight calculation device, adaptive array antenna, and radar device
A weight calculation method begins by storing a target reflection signal of a radar pulse received via an antenna in cells corresponding to positions along with a reception timing for a plurality...
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7522939 |
Radio communication apparatus
A radio communication apparatus includes a received beam generating section 12 for generating received beams beam 0 and beam 1 , which are perpendicular to each other and spatially separated, by...
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7522096 |
Method for phase calibrating antennas in a radar system
A method for phase calibrating antennas in a radar system is disclosed. The method comprises providing a transmit antenna and two or more receive antennas, the receive antennas each in...
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7498970 |
Monitor
A monitoring apparatus of the present application includes: a transmission antenna section that transmits a radio wave of single beam having a wide angle or alternatively a radio wave having a...
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7486224 |
Microwave and millimeter frequency bistatic radar tracking and fire control system
A bistatic passive radar system for tracking at least one target utilizing means for transmitting radar signals from at least one satellite platform in a geosynchronous orbit with the earth, means...
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7460834 |
Method and apparatus for utilizing a directional beam antenna in a wireless transmit/receive unit
A method and apparatus for utilizing a switched beam directional antenna in a wireless transmit/receive unit (WTRU) is disclosed. A wireless communication system includes a serving cell, a neighbor...
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7460060 |
Electromagnetic wave transmitting/receiving module and imaging sensor having electromagnetic wave transmitting/receiving module
An electric wave transmitting/receiving module includes: a waveguide including a conductive member and an opening facing a transmitting side and/or a receiving side; a dielectric substrate disposed...
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7426386 |
Beam laydown for hopped satellite downlink with adaptable duty cycle
A power gated variable hop cycle beam laydown ( 700 ) manifests itself as first cells (C, D) supported by a first hop cycle, second cells (G, H) supported by a second hop cycle, and transition...
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7423578 |
Split aperture array for increased short range target coverage
A phased array radar system comprising a plurality of radiating elements configured in a common array aperture for detecting and tracking targets; and a transmit and receive arrangement responsive...
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7382311 |
Method, computer program product and system for differentiating physical sources from second order nonlinear signal effects
A system for differentiating between a signal from a physical source and a nonlinear signal effect includes an array, a delay control element and a signal processing element. The array is...
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7379707 |
System for concurrent mobile two-way data communications and TV reception
A low profile mobile in-motion antenna and transmit/receive terminal system for two-way “VSAT” type satellite communication using FSS service, preferably in Ku band, supporting at the same time...
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7340254 |
Measurement opportunities for a mobile unit operating with a switched beam antenna in a CDMA system
Measurement opportunities are provided to a wireless transmit/receive unit (WTRU) operating with a switched beam antenna in a CDMA wireless communication system. The switched beam antenna is a...
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7307583 |
Antenna adjustment system and method for an aircraft weather radar system
A weather radar system or method can be utilized to adjust a position of a weather radar system. The weather radar system can utilize processing electronics coupled to an antenna control system....
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7274936 |
Method and apparatus for measuring channel quality using a smart antenna in a wireless transmit/receive unit
A method and apparatus for measuring a channel quality in wireless transmit/receive units (WTRUs) which are equipped with a subscriber based smart antenna. The WTRUs are equipped with a smart...
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7248215 |
Beam architecture for improving angular resolution
An automotive radar system includes a beamformer circuit and a beamcombiner circuit. The beamformer circuit forms a plurality of antenna beams at a plurality of beam ports. The beam combiner...
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7242345 |
Method for controlling a radar antenna
A method is described for detecting an object with target radar. After the first detection of an object, the antenna is tilted. The original direction towards the object is restored by...
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7230565 |
Radar
A radar can detect target azimuths located outside and adjacent to a scanning angular range of a beam by determining changes in received signal strength (a signal-strength profile) in the azimuthal...
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7205928 |
Automatic weather radar system and method
Methods and apparatus are provided for operating a radar system to provide a thunderstorm image to a pilot. The method comprises using one or more radar scans depending upon the aircraft altitude,...
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7196653 |
Imaging apparatus and method
An imaging apparatus has transmitter illuminating a selected surface with a radar beam footprint, and processor for profiling/processing the radar returns so as to derive attitude information in...
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7183963 |
System and method for inspecting transportable items using microwave imaging
An inspection system uses microwave radiation to capture a microwave image of a transportable item. The system includes a transmit scanning panel including a transmit array of transmit antenna...
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7151476 |
Radar system having a beamless emission signature
A radar system having a beamless emission signature is described. In one implementation, the radar system includes a transmission system and a receiver system. The transmission system is configured...
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7123183 |
FM-CW radar apparatus
An FM-CW radar apparatus capable of detecting a stationary object, in particular, an overbridge, located above the road ahead in a simple manner uses a traveling wave antenna as a transmitting...
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7081847 |
Radar system with switchable angular resolution
A radar system with a radar sensor ( 10 ) which comprises a transmitting module ( 20 ), a receiving module ( 22 ) and a supply network ( 64 ), wherein the transmitting module ( 20 ) comprises a...
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7026978 |
Object detector and object detecting method
A plurality of primary detection regions A to I are scanned by switching a beam width and a beam direction of an antenna. The primary detection regions A to I are formed such that one detection...
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7023331 |
Peripheral monitor for monitoring periphery of vehicle
The invention solves a problem of fluctuation in performance in the conventional peripheral monitor for monitoring periphery of a vehicle that measures a distance to other vehicle or any other...
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7016399 |
Receiving apparatus including adaptive beamformers
Receiving apparatus, for receiving a transmission signal in a cellular mobile communications system, comprises a main beamformer ( 6 M , 14 M ) which processes received signals, representing the...
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7015855 |
Creating and identifying synthetic aperture radar images having tilt angle diversity
An apparatus for and method of employing synthetic aperture radar (SAR) images to automatically classify a target comprising emitting and collecting SAR signals at a plurality of squint angles,...
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6937183 |
Object detecting method and object detector
Beams are irradiated in three directions by switching an irradiation direction of a mainlobe of an antenna by stages, and an echo is received from a detection object obtained in the mainlobe or a...
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6914554 |
Radar beam steering with remote reflectors/refractors
A reflected energy detecting device includes a transmitter for transmitting an electromagnetic signal and a receiver for receiving a reflected electromagnetic signal. An antenna may be operatively...
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6906666 |
Beam adjusting device
A device for adjusting the beam direction of a beam radiated from a stationary array of antenna elements. The device includes a feed line structure configured as a star with at least four line...
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6876323 |
Amplitude and phase-controlled antennas-subsystem
A radar system with a phase controlled antenna array that contains a number of data and supply networks ( 2 ), which are installed so that they are interchangeable, and a transmit/receive module (...
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6825796 |
Radar system using two-dimensional scanner
A radar apparatus comprises a signal transmitter device that transmits a signal, a scanner that two-dimensionally scans a target object using the signal transmitted from the signal transmitter...
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6771608 |
Link tracking with a phased array antenna in a TDMA network
An apparatus and method for performing closed-loop beam pointing of a narrow beam at each one of a plurality of target nodes of a communication network, in accordance with a TDMA multiplexing...
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6768458 |
Photonically controlled active array radar system
An active array radar system is controlled by photonic signals. The array of N antenna elements is divided into M subarrays, each having N/M antenna elements. Tunable lasers provide M optical...
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6759978 |
Cross-link antenna system
A cross-link antenna system including a plurality of spacecraft in a constellation is provided. Each of the spacecraft includes an antenna. One or more of the antennas has a number of antenna...
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6714157 |
Multiple time-interleaved radar operation using a single radar at different angles
A pulse radar system capable of mapping multiple targets essentially simultaneously using a single radar antenna. By alternately transmitting radar pulses toward multiple targets positioned at...
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6686871 |
Method for HPRF-radar measurement
In a method for HPRF-radar measurement of the range and Doppler frequency of at least one target, a transmit signal is generated which consists of two pulse sequences that are interleaved on a...
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6614383 |
Beam width display method and system
A weather radar display system displays a beam indicator indicative of a radar beam. The beam indicator represents width of the radar beam as a function of range (distance from the radar beam...
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6614382 |
Beam elevation display method and system
The relative altitude of the center of a radar beam in relation to the aircraft's altitude at a plurality of distance ranges from the radar source is computed. A plurality of range rings...
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6611236 |
Antenna device
An antenna arrangement includes an antenna reflector ( 10 ), a transceiver element ( 11 ) and a signal detection unit ( 12 ) having a signal converter ( 121-122 ) and a computing unit ( 123 ) for...
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6597312 |
Phased array antenna system generating multiple beams having a common phase center
An electronically scanned phased array antenna system which utilizes phase-only control in the generation of multiple beams simultaneously and having a coincident or common phase center so that the...
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6542110 |
Device and method for increasing the angular resolution of an antenna arrangement
The invention describes a device and a method for increasing the angular resolution in a radar system looking in the direction of motion and laterally thereto, wherein the doppler frequency shift...
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6535160 |
“On aircraft” elevation boresight correction procedure for the E-3 antenna
On an element-by-element basis, measure phases between signals at Port A to Port B of the antenna feed network to get a phase measurement angle that corresponds to an angular difference between...
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6531976 |
Adaptive digital beamforming radar technique for creating high resolution range profile for target in motion in the presence of jamming
A wideband adaptive digital beamforming technique for maintaining a high range resolution profile of a target in motion in the presence of jamming utilizes a sequence of adaptively calculated...
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6515616 |
System and method for aligning signals having different phases
A system and method for changing the phase relationship of input signals so as to generate a composite signal having the strongest possible signal. One related input vector signal is phase rotated...
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6483458 |
Method for accurately tracking and communicating with a satellite from a mobile platform
A method for accurately tracking and communicating with a satellite from a mobile platform, wherein the satellite has an antenna which performs both transmit and receive functions from a single...
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6469666 |
Digital antenna goniometer and method
A digital goniometer and steering method are provided which may be used, in a preferred embodiment, for producing a figure-eight antenna reception pattern oriented at any selectable angle. The...
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6462699 |
Bistatic radar system for centralized, near-real-time synchronized, processing of data to identify scatterers
The bistatic radar system uses a scanning beam antenna located at the transmitter to transmit a focused beam of high frequency energy into a predefined space, with the transmitted beam comprising a...
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