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7012562 |
Pulse wave radar device
A pulse wave radar device transmits at a constant period a transmitting signal in which identification data for identifying of pulse wave radar devices is added to a distance-measuring signal so...
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7009562 |
Single ku-band multi-polarization gallium arsenide transmit chip
The present invention is a wide band GaAs microwave monolithic integrated circuit (MMIC) transmit chip that is capable of transmitting linearly or circularly polarized signals when connected to a...
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7006034 |
Fast and slow time scale clutter cancellation
Target detection in the presence of non stationary clutter is improved by a radar receiver on a moving platform for detecting a target using a plurality of short coherent arrays and a plurality of...
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7002511 |
Millimeter wave pulsed radar system
A millimeter wave pulsed radar system includes a radar synthesizer having a voltage controlled oscillator/phase locked loop (VCO/PLL) circuit, direct digital synthesizer (DDS) circuit and...
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6995705 |
System and method for doppler track correlation for debris tracking
The present invention is directed to a system and method for Doppler track correlation for debris tracking in PCL radar applications. The disclosed embodiments describe the systems and methods used...
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6995706 |
Method and an arrangement in a radar level gauging system
A method, an arrangement and a radar level gauging system for preventing interference, which radar level gauging system comprises at least two radar level gauges arranged to measure a filling level...
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6992613 |
Object detecting device
An object detecting device is provided whereby the number and size of detected objects can be determined without making the construction of the device more complex and the cost of components...
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6989785 |
Low-profile, multi-band antenna module
A low-profile multi-band antenna module includes first and second antennas that transmit first and second radio frequency (RF) signals in a first and second RF band, respectively. A first RF...
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6989780 |
System and method for receiver resource allocation and verification
A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. However, it is possible that the scan...
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6989782 |
Ultra-wideband radar system using sub-band coded pulses
Methods and apparatus are provided for radar systems using multiple pulses that are shorter than the expected range delay extent of the target to be imaged. In one implementation, a method for...
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6987481 |
Radar filling level measurement using circularly polarized waves
The present invention relates to a radar filling level measuring device capable of generating and receiving an elliptically polarized wave and, as a special case, a circularly polarized wave, using...
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6987479 |
Conformal range migration algorithm (CRMA) “KARMA”
Motion compensation for coherent combination of pulses facilitates a SAR image of a scene on earth's surface. A great circle ( 406 ) is centered with respect to the earth's center, The great circle...
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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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6978966 |
Reflector deployment error estimation
A system and method for performing in-orbit alignment calibration using on-board attitude sensors to improve reflector alignment after deployment to improve spacecraft pointing.
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6975267 |
Low profile active electronically scanned antenna (AESA) for Ka-band radar systems
A vertically integrated Ka-band active electronically scanned antenna including, among other things, a transitioning RF waveguide relocator panel located behind a radiator faceplate and an array of...
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6975264 |
Signal separating system
A signal separating system 1 comprises a frequency conversion element 3 , a dynamic filter component 4 with associated coherent stop slot and non-coherent passband, optionally a signal wave...
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6972709 |
Radio frequency transceiver
A transceiver that includes a radio frequency source comprised of a monolithic millimeter wave integrated circuit. The transceiver generates a signal of a first frequency, which is then converted...
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6972714 |
Optically-augmented microwave imaging system and method
An imaging system includes an optical (visible-light or near IR) imaging system and a microwave imaging system. The optical imaging system captures an optical image of the object, produces optical...
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6970128 |
Motion compensated synthetic aperture imaging system and methods for imaging
A see-through-the-wall (STTW) imaging system uses a plurality of geographically separated positioning transmitters to transmit non-interfering positioning signals. An imaging unit generates a...
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6967616 |
Systems and methods for correlation in an air traffic control system of interrogation-based target positional data and GPS-based intruder positional data
An improved system and methods for correlating an interrogation-based air traffic surveillance intruder, such as an Traffic alert and Collision Avoidance System (TCAS) intruder, and a GPS-based air...
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6967612 |
System and method for standoff detection of human carried explosives
The system and method for standoff detection of human carried explosives (HCE) is a portable system that automatically detects HCE up to a range of 200 meters and within seconds alerts an operator...
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6965341 |
High resolution SAR processing using stepped-frequency chirp waveform
A stepped-frequency chirped waveform improves SAR groundmapping for the following reasons. Range resolution in SAR image is inversely proportional to the transmitted signal bandwidth in nominal SAR...
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6965340 |
System and method for security inspection using microwave imaging
A security inspection system uses microwave radiation to image targets on a human subject or other item. The system includes an array of antenna elements that are programmable with a respective...
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6963302 |
DC/DC converter
A method of controlling a switching element in a switching regulator power supply of a radar. The method of controlling the switching element comprises only switching the switching element during...
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6961016 |
Estimating an antenna pointing error by determining polarization
Estimating an antenna pointing error includes receiving a signal sent from a reference located within a region. A polarization ratio is evaluated over the region. A minimum polarization ratio...
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6958725 |
Radome aberration correcting system
A system for correcting the effect of radome aberration on line-of-sight signals indicating target position. The aberration is in fact dependent upon both operating frequency and...
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6954172 |
Power monitor for radar system
A method and corresponding devices for monitoring the performance of a radar system ( 2, 4 ) which is equipped with a shield 2 (radome) to protect it against weather influences are described. For...
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6954173 |
Techniques for measurement of deformation of electronically scanned antenna array structures
Techniques for simultaneous measurement of multiple array elements of an array antenna. The array is illuminated with a coherent signal source, and each array element phase shifter is cycled...
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6954174 |
Radar apparatus for automobile, attachment direction adjuster and attachment direction adjusting method for radar apparatus
A radar apparatus for a vehicle includes a casing, a correction member, and a selection indication. The casing includes a functional portion, which performs searching, and a reference surface. The...
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6950055 |
Method and an apparatus for insulation of a radar level gauge
There is provided a radar level gauge using microwaves for measuring a level of a surface of a product in a tank, comprising an antenna for transmitting microwaves to the surface and receiving...
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6950053 |
Motorcycle mounted radar/laser detector
A radar and laser detection device for mounting upon a motorcycle is described which provides increased concealment, security, safety, ease of use and functionality specific to the needs of...
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6943723 |
Combined radar and laser detector having GPS receiver and using wireless communication
The present invention relates generally to a combined radar and laser detector that enables a driver to drive safely and, more particularly, to a combined radar and laser detector, in which a...
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6943726 |
Device for searching a parking space
A device for detecting parking spaces for vehicles includes a distance-measuring beam-type sensor system disposed on a road vehicle, and a signal processing system. The distance-measuring beam-type...
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6943724 |
Identification and tracking of moving objects in detected synthetic aperture imagery
A method of tracking a moving object in an image created by use of a synthetic aperture includes identifying a plurality of receive phase centers for an image collector, obtaining a synthetic...
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6940450 |
Robust predictive deconvolution system and method
A method for processing a received, modulated pulse (i.e. waveform) that requires predictive deconvolution to resolve a scatterer from noise and other scatterers includes receiving a return signal;...
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6940446 |
System and methods for obtaining ground conductivity information using GPR data
A method for inferring information about the conductivity of a medium from ground penetrating radar (GPR) data using a calculated effective penetration limit of the GPR system, including various...
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6937186 |
Main beam alignment verification for tracking antennas
A method for main beam alignment verification includes providing data pertaining to one or more patterns associated with an antenna, measuring power levels of a signal acquired by the antenna, and...
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6933879 |
Method and system for localizing a target in an interrogation-response system
In a method and system to determine the position of a target by means of an IFF type antenna, the antenna having a given direction of aim, the method comprises a step for combining the distance D...
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6933880 |
Programmable source of pulse trains on intermediate frequency and IFF emitting assembly using it
The invention relates to a pulse-modulated source with adjustable parameters and to its use in an IFF or secondary radar emitting assembly. The architecture of currently used IFF emitting...
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6933877 |
Multiple-antenna jamming system
The Multiple-Antenna Jamming System (MAJS) is useful for missile-borne jamming of active protection system radars that operate in close proximity to the frequency band of the missile's radio...
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6933883 |
Method and device for aligning radar mount direction, and radar aligned by the method or device
A radar mount direction alignment device to be used for aligning the transmit/receive direction of a radar device 2 D mounted on a member on which a radar device is to be mounted, such as a...
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6930632 |
Method and device for determining the level of a filling in a container
The invention relates to a method and a device for determining the level of a filling ( 1 ) in a container ( 2 ). The aim of the invention is to provide a method and a device for measuring said...
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6927725 |
System and method for radar detection and calibration
A system and method for radar detection and calibration. By measuring the true range of a calibration target on entry to the radar's detection zone, the actual detection capability of the radar in...
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6927726 |
Radar
A radar suppresses a dc component so as to improve the precision in processing a signal that belongs to a low-frequency band. The radar comprises a mixer that mixes a transmitted signal and a...
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6919840 |
Integration of a semi-active laser seeker into the DSU-33 proximity sensor
A proximity sensor for use with a guidance system of a smart bomb including a ranging radar proximity sensor configured for mounting on a smart bomb and a radome connected to the ranging radar...
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6919839 |
Synthetic aperture radar (SAR) compensating for ionospheric distortion based upon measurement of the group delay, and associated methods
A synthetic aperture radar (SAR) compensates for ionospheric distortions based upon measurement of the group delay, particularly when operating in the VHF/UHF band. The SAR is based upon a...
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6917326 |
Vibratory cleaning mechanism for an antenna in a time-of-flight based level measurement system
An antenna assembly for use with a level measurement device for measuring the level of a material held in a container is provided. The antenna assembly includes an upper section for coupling to the...
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6914556 |
Method and apparatus for magnetron coherence
A pulsed magnetron is caused to emit a series of RF energy pulses which are phase coherent with an injection signal by supplying the magnetron with a pedestal pulse during low-power signal...
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6911932 |
Two antenna, two pass interferometric synthetic aperture radar
A multi-antenna, multi-pass IFSAR mode utilizing data driven alignment of multiple independent passes can combine the scaling accuracy of a two-antenna, one-pass IFSAR mode with the height-noise...
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6911936 |
Formation surveillance and collision avoidance
A display system is disclosed for displaying air traffic symbology from a plurality of different types of air traffic surveillance systems on a single monitor. A display device includes a processor...
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