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7616151 |
Reducing scattering center data using magnitude-based reduction
A method to reduce scattering centers (SC) includes receiving a set of SC data points representing an object. The method also includes reducing SC data points associated with a first region based...
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7616150 |
Null steering system and method for terrain estimation
A weather radar system coupled to a weather radar antenna, including a receive circuit for receiving radar returns received by the antenna and a processor for summing portions of the radar return...
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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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7609199 |
Radar apparatus
A radar apparatus includes a PN code generator for generating a PN code, a variable delay device for delaying the PN code, an oscillator for generating a high-frequency signal, a transmission...
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7609197 |
Method for measuring distance and position using spread spectrum signal, and an equipment using the method
By using the delay profile created by delay profile creating section 102 and the first threshold value 330 received from the first threshold value calculation 105, the first threshold value...
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7602333 |
Transmitting/receiving antenna, isolator, high-frequency oscillator, and high-frequency transmitter-receiver using the same
A millimeter-wave transmitter-receiver uses an NRD guide as a fundamental configuration and includes a millimeter-wave signal oscillator, a pulse modulator, a circulator, an antenna and a mixer. In...
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7602332 |
Reducing scattering center data using multi-volume aggregation
In one example, a method to reduce scattering centers (SC) includes receiving a set of SC data points associated with an object in three-dimensional space, partitioning the SC data points into a...
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7602331 |
Computationally efficient adaptive radar pulse compression system
One aspect of this disclosure relates to a method for processing a received, modulated radar pulse to resolve a radar target from noise or other targets. According to an embodiment of the method, a...
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7598910 |
Direction finding and mapping in multipath environments
Determining the direction of a direct arrival path between a receiver and a transmitter in a multipath environment by determining a transmitter heading relative to the receiver as proportional to a...
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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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7598903 |
Sensor for measuring distance and method for measuring distance using the sensor
A distance measurement sensor and a distance measurement method using the same are disclosed. The distance measurement sensor can use all of a pulse method and a Continuous Wave (CW) method, can...
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7598902 |
Adaptive weather radar detection system and method used in continental and maritime environments
A method of detecting weather using a weather radar onboard an aircraft. A range is selected at which weather is to be detected. A tilt angle of the weather radar is changed to detect weather below...
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7598900 |
Multi-spot inverse synthetic aperture radar imaging
Providing multi-spot inverse synthetic aperture radar (ISAR) imagery is disclosed. Embodiments of techniques in accordance with the present disclosure may advantageously improve multiple target...
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7598898 |
Method for using logging device with down-hole transceiver for operation in extreme temperatures
A logging radar system and method for measuring propped fractures and down-hole formation conditions in a subterranean formation including: a radar source; an optical source; an optical modulator...
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7592948 |
System and method for dual polarization radar with automatic built-in test equipment and calibration
A method of calibrating a dual polarization weather radar system has been developed. The method first generates a transmission pulse from the radar system. The transmission pulse is then modified...
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7592947 |
Generating radar signatures for multiple objects
In one aspect, a method to generate radar signatures for multiple objects includes performing in parallel a shooting and bouncing (SBR) technique to solve for physical optics and multi-bounce...
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7592946 |
Level measurement arrangement
A level measurement arrangement for measurement of a level of a product in a container, comprising: a level sensor, having: a mounting element, including a process connector, for mounting the...
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7592943 |
Frequency modulated continuous wave (FMCW) radar having improved frequency linearity
A frequency modulated continuous wave (FMCW) radar is described that comprises a frequency sweep generator for producing a swept frequency signal. A discriminator receives a portion of the swept...
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7589666 |
System and method for processing data in weather radar
Systems and methods that adapt to the weather and clutter in a weather radar signal and apply a frequency domain approach that uses a Gaussian clutter model to remove ground clutter over a variable...
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7589665 |
Multistatic method and device for radar measuring a close distance
A multistatic detection device for measuring a distance to an object includes a transmitter and a receiver, each having a high-frequency oscillator and a pulse generator. The pulse generators can...
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7589663 |
System and method for the measurement of the unambiguous roll angle of a projectile
A system for the measurement of an angle of roll of a projectile is disclosed. The projectile has a casing with a rear end, a front end, and a side wall extending therebetween. The system includes...
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7586437 |
Efficient methods for wideband circular and linear array processing
The objective of this patent is to develop new signal processing algorithms for a wide-band circular electronically scanned array (CESA) or a wideband linear electronically scanned array (LESA) for...
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7579982 |
Radar apparatus
A radar apparatus includes: a plurality of receiving antennas disposed at regular spacings; two transmitting antennas which are positioned each at opposed ends of the receiving antennas, and a...
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7576687 |
RF front-end circuitry with reduced DC offset
An RF front-end circuit includes a directional coupler, a mixer, and a reflection circuit. The directional coupler is adapted to receive an antenna signal and an oscillator signal. The mixer is...
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7576681 |
Method and system for data fusion using spatial and temporal diversity between sensors
A method and system provide a multi-sensor data fusion system capable of adaptively weighting the contributions from each one of a plurality of sensors using a plurality of data fusion methods....
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7576679 |
Radar detector with position and velocity sensitive functions
A GPS enabled radar detector dynamically handles radar sources based upon previously stored geographically referenced information on such sources and data from the GPS receiver. The detector...
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7573421 |
System and method for the automatic control of video frame rate
The video rate processor ( 10 ) is made up of an Input Video Stream input ( 11 ), at least one Input Processor/Input Devices ( 12 ), at least one Most Recent Frame Buffer ( 14 ), and at least one...
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7573420 |
RF front-end for a radar system
An RF sender/receiver front-end is disclosed comprising a terminal for receiving an oscillator signal, at least one distribution unit for distributing the oscillator signal into different signal...
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7570200 |
Stepped frequency radar
In the invention, a four-port junction ( 10 ) has a port ( 12 ) connected to an RF signal source ( 14 ). The four-port junction ( 10 ) also has an antenna port ( 16 ) coupled to a combined...
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7570197 |
Radar device
One of the objects of the present invention is to reduce the size of a radar device mounted on a vehicle body. To achieve the object, one aspect of the invention provides a radar device, which is...
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7570193 |
Detecting and recognizing long duration waveforms
A method and apparatus for processing signal pulses received by a device to identify the presence or absence of a waveform is provided. The waveform may have a long duration and may have a sparse...
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7567206 |
Integrated circuit for measuring the distance and/or velocity of objects
An integrated circuit for measuring the distance and/or velocity of objects, having: a high-frequency signal generating device for generating a first HF signal having a predefined frequency and a...
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7567205 |
Dynamic ray traversing
In one aspect, a method to generate radar signatures for multiple objects in motion, includes performing a shooting and bouncing (SBR) technique to solve for physical optics and multi-bounce...
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7567204 |
Method for determining noise floor level and radar using the same
A method for a radar for detecting a noise floor level of an electric signal corresponding to an incident radio wave received by the radar, the incident radio wave including a return of a radar...
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7554486 |
System and method for dual polarization radar with automatic built-in test equipment and calibration
A calibration system for the receiver of a dual polarization radar system has been developed. The system includes a radar transmitter that transmits signals in horizontal and vertical polarizations...
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7551988 |
Method of software defined radio (SDR) waveform/function management
A designated function or “golden” slot for implementing and managing re-configurable SDR modules is provided. In an embodiment, the slot includes at least one radio frequency (RF) front end for...
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7551123 |
Phase shifted transmitted signals in a simultaneous dual polarization weather system
A system for simultaneously propagating dual polarized signals in a polarimetric radar system includes a system for shifting the phase of one of the two signals. The simultaneous dual polarization...
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7551121 |
Multi-target-tracking optical sensor-array technology
The multi-target tracking and discrimination system (MOST) fuses with and augments existing BMDS sensor systems. Integrated devices include early warning radars, X-band radars, Lidar, DSP, and MOST...
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7548195 |
Waveform generation method, radar device, and oscillator for radar device
It is possible to generate D/A conversion voltage in which an error generated by numeric irregularities of a D/A conversion element such as resistor constituting a D/A converter 11 is corrected....
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7548194 |
Hostile intention assessment system and method
A hostile intention assessment system and method wherein a tracking sensor subsystem (e.g., radar) tracks targets relative to a critical asset. Determinations are made to assess if a first target...
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7548192 |
Method of mapping steel reinforcements in concrete foundations
A method of mapping steel reinforcements in an existing concrete foundation. The method includes determining the depth of the concrete foundation. Further the method entails transmitting radar...
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7548191 |
Radar oscillator capable of preventing leak of oscillation output
In order to enable intermittent output of an oscillation signal without essentially producing a leak in response to a pulse signal indicating a transmission timing of a radar wave, a radar...
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7548190 |
Obstacle sensor operating by collimation and focusing of the emitted wave
An obstacle sensor operating by collimation and focusing of the emitted wave comprises: a device (I) for insulating the electromagnetic waves emitted by a generator ( 1 ); a device for the...
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7548188 |
Precision radio frequency delay device
A method of delaying propagation of a radio frequency (RF) signal through a circuit is described. The method comprises receiving data that represents a delay time interval, providing an RF signal...
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7545314 |
UWB signal transmitter for radars and sensors
The present invention relates to a UWB radio transmission module including a UWB signal generation circuit. The UWB signal generation circuit controls the power consumption outputs according to a...
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7541972 |
RF attenuation circuit
An RF receiving circuit that selectively attenuates a received RF signal before it reaches sensitive modifying devices, such as a low noise amplifier or an analog to digital converter. The...
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7541971 |
Automatic bright band detection and compensation
A weather radar system has bright band detection and compensation. The weather radar system determines that high reflectivity in weather is a bright band and reduces an encoded return level from...
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7541970 |
Weather radar with spurious reflection lobe mitigation
A weather radar system is capable of mitigating the effects of spurious reflections caused by a reflection lobe. Processing electronics can be used to sense weather and to identify spurious...
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7538720 |
Simultaneous savings in bandwidth and energy using waveform design in presence of interference and noise
A transmit signal is output from a transmitter towards a target and towards interference. A combination signal is received at a receiver, wherein the combination signal includes the transmit signal...
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7538719 |
Mixer circuit and radar transceiver
A mixer circuit includes: a rat race circuit including a ring-shaped transmission line with a first terminal, a second terminal, a third terminal, and a fourth terminal, the first to fourth...
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