Matches 1 - 50 out of 157 1 2 3 4 >


Match Document Document Title
8994585 Fine grained duty cycling and timing control for pulsed radar  
A method is provided. A first edge on a first gating signal is generated, and a local oscillator and a shared clocking circuit with the first edge on the first gating signal. A second edge on a...
8988272 Digital receiver techniques in radar detectors  
A method and apparatus are provided for detecting a RADAR signal. RADAR channel data in a frequency range is received, where the frequency range is divided into a plurality of equally wide...
8963769 Guided wave radar interface measurement medium identification  
A guided wave radar transmitter for interface measurement comprises a probe defining a transmission line for sensing level of two immiscible liquids to define an interface therebetween. A pulse...
8935000 Machine tool monitoring device  
The invention relates to a machine tool monitoring device. It is proposed that the machine tool monitoring device comprises at least one signal unit for an ultra wide band operation.
8922420 Electromagnetic body scanning system, a method and a computer program product  
An electromagnetic body scanning system may include a measuring system for measuring data of radio waves scattered by a body in two distinct subbands; and a computer system. The computer system is...
8912944 Human presence detector suitable for concealment and using a shaped microwave beam  
A presence detector unit (PDU) of the type relying on microwave radiation provides a signal indicating movement within a defined space when such movement occurs. A source of microwave radiation...
8912950 Interference mitigation in through the wall radar  
This invention relates to sense through the wall radar. A main channel of a radar system (12) is operated at a frequency capable of penetrating opaque barriers such as the wall (24) of a building...
8890677 Active virtual fence using mesh networked RF tags  
A system capable of monitoring an area and detecting a disturbance with the area. The system has a plurality of ultra-wide band radio frequency tags, each of the tags including a digital signal...
8884807 Pseudo real time receive signal sampling for ground penetrating radar  
A system and method for pseudo real time collection of receive signal data in a single- or multi-channel ground penetrating radar. Each channel transmits electromagnetic impulses into a medium...
8880016 Anti-jamming system  
An anti-jamming system includes a tunable negative jamming signal feedback loop for feedback suppression of a received jamming signal. The system includes a zero IF phase locked loop (PLL) jamming...
8754801 Anti-jam apparatus for baseband radar systems  
A filter which highly attenuates CW signals within specified frequency bands while allowing baseband pulses to pass therethrough with relatively low attenuation is provided. The filter comprises a...
8736481 Carrier frequency offset compensation in beamforming systems  
A method for communicating signals in an ultra high bandwidth system that compensates for carrier frequency offset is provided. A baseband transmit signal having a plurality of data bits is...
8723716 Communication device and imaging apparatus  
A communication device includes an oscillator to generate an oscillation signal; a harmonic generator to generate a higher harmonic wave from the oscillation signal; a first filter to take out a...
8674871 Method and system for aiding environmental characterization by ultra-wideband radiofrequency signals  
The invention relates to environmental characterization on the basis of an Ultra Wide Band (UWB) radiofrequency communication network. Pulses are emitted and the waveform received is compared with...
8643535 Radar device  
A radar device capable of removing noise signals before digital conversion and detecting an object with high precision by a simple configuration is provided. In a transmitting RF unit 110, a...
8630357 Ultra-wideband dual band magnitude summer apparatus and method  
This invention relates to capturing and processing the full bandwidth of an Ultra-Wideband (UWB) signal. An incoming UWB signal is processed in two different analog signal bands in parallel and...
8587474 Resolution radar using metamaterials  
A radar system includes at least one transmit array comprising a plurality of metamaterial elements. The radar system further includes at least one near-field stimulator for inputting...
8573529 Standoff detection of motion and concealed unexploded ordnance (UXO)  
A surveillance system includes a multi-propeller aircraft having a main propeller and a plurality of wing unit propellers; a housing that houses the main propeller and the wing unit propellers; an...
8547273 Pulse radar apparatus and control method thereof  
The invention provides a pulse radar apparatus, and a control method thereof, that permits to readily downsize and to lower its cost and allows information on an object to be detected in high...
8502729 Ultra-wideband radar sensors and networks  
Ultra wideband radar motion sensors strategically placed in an area of interest communicate with a wireless ad hoc network to provide remote area surveillance. Swept range impulse radar and a...
8391336 Variable length ranging and direction-finding signals constructed from bandlimited kernels and sparse spreading sequences  
To generate a pulse for ranging, a kernel is convolved with a spreading sequence. The spreading sequence is parametrized by one or more ordered (length, sparsity) pairs, such that the first...
8368586 Person-borne improvised explosive device detection  
A system includes a multi-system approach to detecting concealed weapons and person borne improvised explosive devices (PBIED). A first and second radar system operate at different center...
8350745 Anti jamming system  
Anti jamming system comprising a tunable negative jamming signal feedback loop for feedback suppression of a received jamming signal, including an receiver receiving an jamming signal followed by...
8350746 Anti jamming system  
Anti jamming system comprising a tunable negative jamming signal feedback loop for feedback suppression of a received jamming signal, including a receiver receiving an jamming signal followed by a...
8319682 Method and apparatus for examining an object using electromagnetic millimeter-wave signal illumination  
A method examining an object using millimeter-wave signals includes: (a) providing at least two millimeter-wave signal sources; (b) transmitting at least two millimeter-wave signals having at...
8237603 Receiver test circuits, systems and methods  
Embodiments relate to apparatuses, systems and methods for testing high-frequency receivers. In an embodiment, a method includes integrating a pulse train generator and a receiver in an integrated...
8190286 Machine tool monitoring device  
A machine tool monitoring device of a machine tool for machining a work piece, includes a signal unit (24) provided for an ultra-broad-band operation. The signal unit (24) processes a signal (32,...
8169359 Pulse doppler radar device  
A judging and controlling part 110 comprises an operation mode judging unit 111, a pulse width selecting unit 112, and a band limiting width selecting unit 113, wherein the operation mode judging...
8116959 System and method of vehicular wireless communication  
A system and method of vehicular wireless communication over a Dedicated Short Range Communication service band is provided. The system includes a vehicle having a navigation means, a processor,...
8072367 Organically reactive cell for underground sensing (ORCUS) and system  
A movement detection system includes a microwave antenna able to transmit microwave frequency signals into a space. An electronics controller is connected to the microwave antenna, and is...
8063814 Beat-product radio imaging method (RIM)  
A beat-product radio imaging method (RIM) system uses a matched continuous wave (CW) transmitter and receiver to electronically image material in between. Signal attenuation measurements are taken...
7982657 Ultra-wideband radar waveform calibration for measurements of a heterogeneous material  
Embodiments of the disclosed technology comprise a ground penetrating radio device and methods of use for obtaining greater resolution. This is achieved by measuring the composition/reflection off...
7983692 Wireless communication apparatus and distance measuring method  
Proposed is a technique for implementing data communication and distance measurement even in a case where data communication and distance measurement share the physical layer. A wireless...
7978071 Device and method for detecting the presence of an object  
A device for detecting the presence of an object in a detection zone is provided. The device includes a transmission line, a generator which is connected to an input of the transmission line and...
7969344 Methods and systems for improved extraction of a signal from a noisy environment  
Methods and systems consistent with the present invention allow identification of a true signal contained in a signal containing the true signal and noise. In general, digital signal information...
7920088 Apparatus and method to identify targets through opaque barriers  
The present invention is a method and apparatus that provides detection, characterization, and intuitive dissemination of targets. This disclosure combines improvements to ultra-wideband (UWB)...
7884757 Scanning ultra wideband impulse radar  
In one embodiment, an ultra wide band (UWB) radar includes: a substrate; a plurality of antennas adjacent the substrate, the plurality of antennas being arranged into a plurality of sub-arrays; an...
7864100 Self-referencing radar pulse detector  
An automatic pulse detector compares a radar video pulse to a delayed and amplified version of itself. The radar video pulse serves as an amplitude reference for a comparator. A delayed and...
7812760 Short-range radar and control method thereof  
A transmitting unit of a short-range radar includes a first pulse generating unit, a second pulse generating unit, an oscillator and a switch, and while complying with the spectrum mask specified...
7782976 Multiple channel waveform generator with dynamic delay through symbol superresolution  
A waveform generator for simulating multiple, differently delayed signals. Dynamic signal delays include modulation delay and carrier phase shift, as well as modulation and carrier Doppler shift,...
RE41479 Time domain radio transmission system  
A time domain communications system wherein a broadband of time-spaced signals, essentially monocycle-like signals, are derived from applying stepped-in-amplitude signals to a broadband antenna,...
7741989 Radar system, radar transmission signal generation method, program therefor and program recording medium  
Disclosed is a radar system capable of detecting near targets even in case of using discrete bands transmission signal. For this end, a discrete bands selection unit 1 selects discrete bands that...
7719457 Digitally tuned digital radio frequency memory  
A digitally tuned digital radio frequency memory that captures a portion of a first radio frequency signal and retransmits the portion as a coherent radio frequency signal. The digitally tuned...
7715502 Digital low-power CMOS pulse generator for ultra-wideband systems  
A low-power pulse generator is provided for use in ultra-wideband (UWB) systems. In one embodiment, the UWB pulse generator includes four pulse generators, such as digital triangular pulse...
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...
7656347 Quadrature radar apparatus  
A quadrature radar apparatus includes a quadrature signal generating unit, a plurality of coupler modules connected to the signal generating unit, an antenna unit receiving transmission signals...
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...
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...
7541968 System and method for detecting an intruder using impulse radio technology  
An intrusion detection system and method are provided that can utilize impulse radio technology to detect when an intruder has entered a protection zone. In addition, the intrusion detection...
7515092 Sub-frame synchronized residual radar  
A method of using a wireless communication system to determine locations is provided. The method including exchanging communication frames between at least two synchronized nodes in the...

Matches 1 - 50 out of 157 1 2 3 4 >