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8144049 |
Radar with non-uniformly spaced antenna array
In a radar with a non-uniformly spaced antenna array, an extractor estimates a number of arrivals of echoes to the antenna array. A setter sets a number of azimuths corresponding to a number of...
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8138969 |
Monobit based low cost high performance radar warning receiver
A radar warning receiver is implemented in low cost integrated circuit form utilizing only one analog component, namely a limiting amplifier. By taking the output of the limiting amplifier and...
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8102309 |
Radar device
Provided is a radar device capable of accurately calculating directions and the number of targets. A direction calculation unit includes a correlation matrix addition prohibition unit that...
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8094060 |
Method of detecting a target
A method for processing returns from a sensor, such as a radar system, in order to identify targets is provided. The method uses a track before detect routine to integrate data from several scans...
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8049663 |
Hardware compensating pulse compression filter system and method
A method to improve a system's signal performance may comprise: generating a first signal, transmitting the first signal, receiving the first signal, and generating a second signal. The method may...
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8035551 |
Noise correlation radar devices and methods for detecting targets with noise correlation radar
A pulsed compression noise correlation radar uses noise modulation and pulse compression technology to scramble recognizable transmit signal characteristics and reduce transmit energy. The pulsed...
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8022863 |
Spatially variant apodization (SVA) filter
A method includes correlating a plurality of samples of a waveform into a correlation domain to provide a mainlobe defined by a first subset of a plurality of pulse-compressed samples and a...
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7990311 |
Adaptive clutter filter for maritime surface search radar
A time sequence of raw radar data for a region of space is subdivided into a plurality of processing frames. The processing frames are subdivided into a plurality of processing cells and...
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7990310 |
Ultra-wideband ranging method and system using narrowband interference supression waveform
Disclosed herein is an Ultra-WideBand (UWB) ranging method using a narrowband interference suppression waveform. A transmission signal is transmitted to a target object. The transmission signal,...
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7907086 |
Generic radar architecture
The invention relates to the general field of complex electronic and/or computerized system architectures for which the interchanges take the form of irregular data flows prompted by processing...
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7907083 |
Radar device
A FMCW-type radar device generates snapshot data from a beat signal that represents a received condition of the radar device every modulation period. Auto-correlation matrices generated by the...
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7889054 |
Method and apparatus for creating scramble signals in RFID
The disclosed inventions relate to a method and apparatus for creating scramble signals. The disclosed inventions further relate to a method and apparatus for creating scramble signals from data...
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7884754 |
Method of distributed estimation using multiple asynchronous sensors
A method and system are provided for merging data from a plurality of multiplexed measurement sources to a decision-maker. The method includes operations for receiving a corresponding plurality of...
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7855674 |
Method and radar system for coherent detection of moving objects
The present invention provides a coherent radar system based on a modification of standard non-coherent radar without Moving Target Indication. Typical radars in this class are Navigation radars...
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7852259 |
Clutter filtering
Clutter filtering of broadband radar signals is performed by obtaining a measure of the impedance of an echo target. A distance resolution is selected and then a power spectrum is calculated for...
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7839321 |
Radar cable detection system
Ground clutter is effectively separated from true signals echoed by a cable in the flight path of an aircraft, by encoding a transmitted pulse wave in a radar system with at least one transmit (TX)...
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7840075 |
Marine radar system with three-dimensional memory
A radar system includes a memory device operable to store radar-return data characterizing at least one geographic region, a database including a set of chart data representing fixed landmarks...
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7812761 |
DSSS radar, method implemented by radar and computer-readable storage medium
A DSSS (Direct Sequence Spectrum Spreading) radar has a transmitting part to transmit a transmitting signal, including a predetermined code sequence, to one or a plurality of targets, a receiving...
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7800527 |
System and method for standoff detection of human carried explosives
The system and method for standoff detection of human carried explosives (HCE) automatically detects HCE (112) up to a range of (200) meters and within seconds alerts an operator to HCE (112)...
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7782248 |
UWB distance measurement system and method of driving the same
The present invention relates to a UWB distance measurement system and method of driving the system. The system includes a reception antenna for receiving a signal, which is output from a...
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7782245 |
Radar system
A scanning radar system suitable for detecting and monitoring ground-based targets includes a frequency generator, a frequency scanning antenna, and a receiver arranged to process signals received...
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7773029 |
System and method for filtering clutter
A system and method for filtering clutter is contemplated that in one aspect performs clutter-filtering on complex-voltages. In one aspect, spectral coefficients identified from a series of...
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7768441 |
Geodesy via GPS and INSAR integration
A method for representing surface deformation measurements, including providing InSAR data, wherein the InSAR data is line of sight InSAR data; providing Global Positioning System (GPS) data;...
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7755535 |
Radar system comprising at least two spatially separated antenna units
A radar system comprising at least two spatially separated antenna units, each comprising one antenna. Each antenna unit comprising a signal generator connected to an antenna constitutes a...
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7750840 |
Method and apparatus for assessing contact clusters
Methods and apparatus for identifying a plurality of contacts from a signal return, defining a zone containing a number of contacts from the plurality of contacts, determining a centroid for the...
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7724181 |
Target object detection apparatus for acquiring information concerning target objects based on correlation matrix derived from signal values corresponding to reflected electromagnetic waves
A target object detection apparatus periodically executes a transmit/receive operation to transmit radar waves and obtain received signals from resultant incident reflected waves from respective...
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7719461 |
Track fusion by optimal reduced state estimation in multi-sensor environment with limited-bandwidth communication path
The invention, called “ORSE Track Fusion”, combines sensor tracks from dispersed sites, when limited communication bandwidth does not permit sharing of individual measurements. Since estimation err...
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7719460 |
Radar device
In a radar device including a transmitting unit for transmitting a transmission signal having plural modulation sections, a receiving unit for receiving a reflection signal obtained through...
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7702044 |
Radar detection and dynamic frequency selection
A wireless network device includes a correlation module, an automatic gain control module, and a control module. The correlation module correlates a predetermined portion of a radio frequency (RF)...
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7692575 |
Radar target detection method and radar apparatus using the same
A radar target detection method in which an azimuth at which a target is located is detected on the basis of reception signals obtained through antenna elements of an array antenna by detecting a...
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7656346 |
Millimeter wave image processor and millimeter wave image processing method
A millimeter wave image processor, capable of performing imaging by matching and filtering while considering a spherical wave on an antenna face in a near field, is provided. The processor...
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7646335 |
Stepped frequency radar device
A radar device (100) comprising transmit and receive parts, and a control unit (CU). The transmit part includes means (WG) for generating a signal within a certain band, and the receive part...
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7626534 |
Unified navigation and inertial target tracking estimation system
A target tracking method uses sensor(s) producing target signals subject to positional and/or angular bias, which are updated with sensor bias estimates to produce updated target-representative...
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7623061 |
Method and apparatus for discriminating with respect to low elevation target objects
The invention concerns a method and apparatus for estimating a height of a target object using radar signals reflected from the target object wherein a receiver detects a plurality of radar signals...
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7620518 |
Distance measuring device an method for testing the operation of a distance measuring system
A distance measuring device for measuring a distance of a vehicle to an obstacle and a method for testing the operation of a distance measuring system. Two measuring systems are provided, each...
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7605747 |
Method for compensating for the positional errors of a sensor
A method for determining or compensating for the positional errors of a sensor tracking a target comprises the steps of operating the sensor to generate sensed information relating to the target...
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7567201 |
Vehicle-installation direction detection apparatus enabling accurate detection of target body directions irrespective of vehicle speed
A vehicle-installed direction detection apparatus is controlled in accordance with the vehicle speed, to detect respective directions of one or more target objects by selectively applying...
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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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7561100 |
Correlation processor for receiver
A correlation processor for a receiver is capable of carrying out a correlation process with highly suppressed side lobes, improved resolution, and minimized S/N loss. The correlation processor is...
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7561097 |
Method and system for detection of objects
A method for detection of an object, the method including irradiating a target with two electromagnetic wave energy beams, a first beam at a first frequency and a second beam at a second frequency,...
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7532152 |
Automotive radar system
An automotive radar system having a high frequency radio transmitter which generates a radar signal in a known direction. A high frequency radio receiver receives echoes from the radar signal in...
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7525478 |
Radar signal processor
A radar signal processor is disclosed having an observation mechanism for receiving a reflected wave from a target and for outputting a predetermined observation signal. The processor extracts a...
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7504994 |
Radar device and similar device
There is configured a radar or similar device that outputs received data that is currently being received and scan correlated image data in parallel with each other. Scan correlated image data and...
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7486225 |
Radar device
A data code generator produces a data code, while a reference code generator produces a reference code. The data code is phase-shifted by the data code generator in a predetermined sweep range,...
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7486230 |
Reflected wave power estimation device in a radar signal processor
A radar signal processor has observation means for outputting a predetermined observation signal from a reflected wave, means for extracting an observation signal component concerning a target from...
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7474258 |
System and method for detection and discrimination of targets in the presence of interference
Systems and method of detection and discrimination of targets in the presence of interference are disclosed. A system transmits a signal and then receives signals including interference and...
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7427948 |
Combining signals exhibiting multiple types of diversity
Combining signals includes receiving first signals having a first frequency and second signals having a second frequency. A first weight reflecting a signal-to-noise ratio associated with a first...
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7428276 |
Method and apparatus for channel impulse response estimation in GSM systems
A method for estimating channel impulse response (CIR) in a communication system includes converting RF analog signals to obtain baseband digitized signals, sampling the baseband digitized signals...
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7425693 |
Spectral tracking
A method of tracking a target. The method includes the steps of acquiring a first spectral image of a scene that includes the target, designating a spectral reference window, in the first spectral...
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7423581 |
Radar and similar apparatus
A radar device is provided that can reliably display sensed image data of an object, regardless of the state of the object (echo) within a sensed range and of the surrounding environment. A...
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