Matches 151 - 200 out of 374 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
6724340 Detecting system having a coherent sparse aperture  
A system and method for detecting a target object through foliage includes a transmitter for generating a low-frequency electromagnetic signal. The signal is directed toward a potential target...
6720905 Methods and apparatus for detecting concealed weapons  
Methods and Apparatus for early detection and identification of a threat, and alerting against detected threats, such as individuals wearing or carrying explosive materials and/or weapons, e.g.,...
6714153 Device for electromagnetic detection of geological properties in a well  
The invention is a well radar for detecting, by electromagnetic wave reflection, resistivity horizons in production zones in oil wells. Transmitter and receiver antennas are combined in a tubing...
6714120 Inductor-capacitor resonant circuits and improved methods of using same  
A tag which uses radio frequency waves transmitted from a scanning device in order to identify an item to which the tag is attached or with which the tag is associated. The tag includes a first...
6701647 Subsurface imaging system and method  
A portable structure supports a subsurface imaging system and is moveable over a given imaging site. At least a first antenna of a plurality of antennae is oriented in a manner differing from an...
6703964 Interrogation of an object for dimensional and topographical information  
Disclosed are systems, methods, devices, and apparatus to interrogate a clothed individual with electromagnetic radiation to determine one or more body measurements at least partially covered by...
6690316 System and method for automated alerting to geospatial anomalies  
An automated inexpensive system and reliable method for detecting spatial anomalies in real time, allows an unsophisticated operator to detect hidden anomalies efficiently and safely. In a...
6670906 Method for determining accurately coordinates of a GPR antenna relative to a fixed reference  
A method and apparatus for determining accurately a coordinate of a transmitting/receiving antenna pair relative to a predetermined reference position. The method includes placing a transmitting...
6667709 Method and apparatus for detecting leaks in buried pipes by using a selected combination of geophysical instruments  
A method and apparatus for detecting and locating leaks in buried pipes is disclosed in which ground penetrating radar, induction, acoustic, and vacuum excavation systems are selected based on soil...
6664914 Ground penetrating radar  
A ground penetrating radar includes a signal generator, a return signal processor, a gate and an antenna. The signal generator is a dual frequency synthesizer that generates a stepped frequency...
6661367 Non-destructive probing system and a method thereof  
A signal processor includes a unit for forming designated groups from radar reflection signals, a memory unit for storing the designated groups of radar reflection signals individually, a first...
6657577 Radar plant and measurement technique for determination of the orientation and the depth of buried objects  
A plant for generation of information indicative of the depth and the orientation of an object positioned below the surface of the ground is adapted to use electromagnetic radiation emitted from...
6653970 Multi-static UAV radar system for mode-adaptive propagation channels with obscured targets  
Bistatic radar compatible for investigating the employment of a high-altitude UAV working in tandem with a group of low-altitude UAVs. The bistatic radar is divided into a position-adaptive...
6650276 Radar apparatus and method for detecting small slow moving targets  
Radar method and apparatus for detecting small, slow moving targets in the presence of high background clutter that includes a balanced bridge structure to achieve a null balance with the target...
6633252 Radar plow drillstring steering  
A radar-plow drillstring steering system comprises a steering plow and a measurements-while-drilling instrument for mounting just behind the drill bit and downhole motor of a drill rod. The...
6626078 Apparatus for detecting, identifying, and validating the existence of buried objects  
A system for detecting, identifying and validating the existence of ordinance located atop or buried beneath the ground including at least one aerial platform capable of powered flight, a base...
6624781 Apparatus and method for holographic detection and imaging of a foreign body in a relatively uniform mass  
The present invention is an apparatus and method for displaying a foreign body in a relatively uniform mass having similar electromagnetic impedance as the foreign body comprising of at least two...
6621448 Non-contact radar system for reconstruction of scenes obscured under snow and similar material  
A system and method for imaging objects obscured by a covering layer of snow. The system preferably utilizes a continuous-wave radar generating short-wavelength radio-frequency (RF) signal...
6617996 Ground penetrating radar with audible output  
A ground penetrating radar system including a processor for generating audible output signals having discrete frequency components representative of the depth of buried targets. The amplitude of...
6603422 Ground penetrating radar incorporating a real-time multi-target direction finding capability  
The Ground Penetrating Radar (GPR) system introduced in this application provides data from an underground medium of the same caliber as that provided by conventional radars in air or space...
6600441 Subsurface exploratory radar detector for a hand tool device  
A radar detector for exploration of subsurface embedded objects comprising an antenna array ( 1 ) for high-frequency electromagnetic waves, which is connected and individually switchable with at...
6590519 Method and system for identification of subterranean objects  
A radar source is configured on a vehicle, which may be an airborne vehicle such as a helicopter. An arrangement of at least one computer system is provided in communication with the radar source...
6573855 Three-dimensional questing method, three-dimensional voxel data displaying method, and device therefor  
In a three-dimensional exploring method for finding location of a buried object by transmitting a wave signal ( 4 ) by means of e.g. an electromagnetic wave into the ground ( 1 ) and receiving the...
6567036 Search device for locating buried persons  
The invention uses four antennae in order to pinpoint the exact position of the transmitter, especially at a close distance. The four antennae form two pairs of antennae placed at a specific angle...
6552336 Non-invasive, opto-acoustic water current measurement system and method  
A method and system are provided for measuring water current. An acoustically-modulated beam of radiation is transmitted to a target location on the surface of a body of water. As the beam transits...
6552677 Method of envelope detection and image generation  
A method of detecting objects reflecting impulse waveforms of generating a detection envelope by receiving a reflected waveform, delaying said waveform by a peak-to-zero delay (PZD) interval. The...
6545945 Material classification apparatus and method  
The present invention provides signification improvements over the apparatus and method disclosed by U.S. Pat. No. 4,922,467. The invention provides an apparatus for material classification and...
6531881 Measurement arrangement  
A measuring device for determining the thickness of a non-homogeneous medium such as the thickness of a road structure. The device includes a radar transmitter and two spaced receivers. Information...
6522285 Ground-penetrating imaging and detecting radar  
A ground-penetrating radar comprises a single resonant microstrip patch antenna (RMPA) that is driven by a three-port directional coupler. A reflected-wave output port is buffered by a wideband...
6522284 Radar cross-section measurement system for analysis of electrically insulative structures  
A method and system for identifying an anomaly in an electrically insulative component of a structure, such as an insulator on a utility or telecommunications pole, are provided. Locations for the...
6518913 Apparatus and method for locating objects under a body of water  
An apparatus ( 10 ) and method adapted for locating objects under a body of water comprising a frame structure ( 12 ) and at least one sensor assembly ( 16 ) connected thereto. The sensor assembly...
6512475 High-frequency dual-channel ground-penetrating impulse antenna and method of using same for identifying plastic pipes and rebar in concrete  
An antenna system for ground-penetrating radar use, comprising first and second co-located antenna element pairs orthogonally oriented with respect to each other. Each of the element pairs includes...
6512477 Detecting apparatus  
While successively varying its orientation at specific intervals, a detecting apparatus transmits pulsed radio waves from an antenna ( 1 ), and data corresponding to input levels derived from one...
6501414 Method for locating a concealed object  
Apparatus and methods are disclosed for detecting anomalies in microwave penetrable material that may be used for locating plastic mines or pipes underneath the ground. A transmitter is positioned...
6501413 Timing and control and data acquisition for a multi transducer ground penetrating radar system  
A multi-channel digital equivalent time sampling (MDETS) device having a programmable logic control that can select, delay or create various triggered signals. The MDETS can function independently...
6496137 Ground penetrating radar array and timing circuit  
Methods and systems consistent with this invention identify a buried object using array-based ground penetrating radar having a control device, a plurality of transmit antennas, and a plurality of...
6496136 Ground penetrating radar system for non-invasive inspection of trees for internal decay  
The method for examining trees comprises directing ground penetrating radar signals into a tree using a radar apparatus connected to a microprocessor control and data acquisition unit via an...
6480141 Detection of contraband using microwave radiation  
The present invention relates to a method and system for using microwave radiation to detect contraband hidden inside of a non-metallic container, such as a pneumatic vehicle tire. The method...
6477474 Measurement of process product dielectric constant using a low power radar level transmitter  
Disclosed is a method of using a low power radar level transmitter to calculate a dielectric constant of a product in a tank. Low Power Time Domain Reflectometry Radar (LPTDRR) circuitry is...
6473025 Landmine locating system  
A landmine detection system comprises a ground-penetrating radar for probing the surface of the ground for landmines and other anomalies. The radar is swept back and forth across a lane while a...
6466155 Method and apparatus for detecting a moving object through a barrier  
The method and apparatus for detecting a moving object through a barrier uses radar imaging and a multiplicity of spatially separated antennas to acquire full-waveform radar data that accurately...
6462696 Radar apparatus  
The invention provides a man-portable, non-ground-contacting, ultra-wide band impulse radar system ( 1 ), the system having separate transmit and receive antennae located in a common non-metallic...
6449566 Acoustic scattering measurement and processing for determining variances in multiple features  
A method is provided for determining multiple feature variances in a medium. Acoustic sources are positioned on one side of a selected scattering direction. Acoustic receivers are positioned on an...
6445334 Ground penetrating radar system  
A ground penetrating radar system includes a cart configured to be movable along the ground. A computer is mechanically coupled to the cart. A radar electronics module is mechanically coupled to...
6437726 Method and apparatus for determining the location of underground objects during a digging operation  
A method and apparatus for determining a location of an underground object during a digging operation. The method and apparatus includes delivering a signal toward the underground object, receiving...
6429802 Determining the condition of a concrete structure using electromagnetic signals  
Ground penetrating radar (GPR) is a technique that may be used to image the inside of a structure by collecting the echoes (or reflections) resulting from electromagnetic signals such as, for...
6404377 UHF foliage penetration radar antenna  
A low cost array with wide band elements interleaved into an “egg-crate” structure. The radiating elements are flared notch radiators. Good impedance match over a wide band was achieved by...
6396433 Talking buried object detector  
A spoken word-producing detector identifies objects by comparing signatures of detected objects with stored signatures of known objects. When the signatures compare, the detector produces stored...
6388629 Rotating scanning antenna apparatus and method for locating buried objects  
A ground penetrating antenna apparatus and method are provided for locating underground objects via radar, sonar, or similar methods. The apparatus includes one or more antennas that are rotatably...
6377201 Radar and method therefor  
A radar ( 300 ) comprises a transceiver ( 302 ) for transmitting pulses directed to a subsurface area of interest ( 102 ) and for receiving a reflected wave ( 210 ) from the subsurface area of...
Matches 151 - 200 out of 374 < 1 2 3 4 5 6 7 8 >