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Class 342/22 - TRANSMISSION THROUGH MEDIA OTHER THAN AIR OR FREE SPACE


Subclass of Class 342 - Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
Definition: Subject matter wherein a radar signal is sent through a
No. of patents: 580
Last issue date: 05/15/2012


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NumberTitleIssue Date
8179300Method for suppressing clutter in space-time adaptive processing systems
A method surpresses clutter in a space-time adaptive processing system. The method achieves low-complexity computation via two steps. First, the method utilizes an improved fast approximated power iteration method to compress the data into a much smaller subspace. T...
05/15/2012
8174429Mine detection
An integrated mine detection system includes a ground penetrating metal detector and a ground penetrating radar detector. The integrated mine detection system includes an integrated search device housing a radio-wave transmitter of the radar detector and a coil of t...
05/08/2012
8174430Detection of concealed object by standing waves
A process is provided to detect an object within a defined region using standing longitudinal cavity mode waves. The process includes disposing first and second conductive lines substantially parallel to the axis, transmitting an electromagnetic signal through the f...
05/08/2012
8164507Fusing multi-sensor data to provide estimates of structures
In particular embodiments, analyzing data includes receiving sensor data generated in response to sensing one or more structures. The structural features of the sensor data are identified. Each structural feature is represented by one or more vectors. A score matrix...
04/24/2012
8115666Ground penetrating synthetic aperture radar
A method and system for examining subsurface targets utilizing an elevated or airborne platform. A broad spectrum of frequencies is transmitted from the platform and is directed at the various subsurface targets. A plurality of chirp signals would be utilized to tra...
02/14/2012
8115667Highway speed ground penetrating radar system utilizing air-launched antenna and method of use
Embodiments of the disclosed technology comprise an air-launched antenna system with interference-rejection technology that operates in analog hardware as well as by way of a digital filtering technique. Using an inline analog hardware filter combined with a digital...
02/14/2012
8102298Ultra-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 a homogeneous material (e.g., metal plate), determining coefficients ...
01/24/2012
8098187Wide field of view millimeter wave imager
An imager comprising a sphere of dielectric material and a geodesically configured substrate disposed adjacent said sphere. The geodesically configured substrate comprises a plurality of triangularly shaped elements, at least selected ones of the triangularly shaped...
01/17/2012
8098185Millimeter and sub-millimeter wave portal
In accordance with one embodiment of the present invention, a millimeter or sub-millimeter wave portal system is provided. Generally, the portal system comprises an electrooptic source and one or more millimeter or sub-millimeter wave detectors. The electrooptic sou...
01/17/2012
8098186Through-the-obstacle radar system and method of operation
There are provided a through-the-obstacle radar system and method of operating thereof comprising recording signals and/or derivatives thereof collected during a certain substantial monitoring period, and using the recorded information for generating patterns inform...
01/17/2012
8089390Sensor cart positioning system and method
A movable platform has a front end, a back end, a longitudinal axis, and at least one axle oriented generally transverse to the longitudinal axis and located between the front and back ends for supporting wheels of the platform. A position sensor is affixed on the p...
01/03/2012
8077072Static RF imaging for inside walls of a premises
A system includes a radar unit configured to provide raw data from scanning an exterior of a structure; and a signal processing and imaging module configured to: process the raw data into markers of interior locations of the structure; and display an image of interi...
12/13/2011
8072367Organically 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 configured to continually measure the impedance of the microwave antenna while...
12/06/2011
8068049Passive detection apparatus
A passive detection device is disclosed comprising a plurality of antennas, receivers, and a digital beamformer, wherein the antennas and receivers are adapted to receive radiation of millimeter wavelengths from a near field region, to process and digitize it. The b...
11/29/2011
8063813Active improvised explosive device (IED) electronic signature detection
The present invention provides an apparatus and method of detecting, locating, and suppressing electronic devices, specifically IEDs. This RF emission measurement device in some embodiments can also be considered a system for RF emission measurement, location, and s...
11/22/2011
8063814Beat-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 from a number of different transmitter and receiver perspectives arou...
11/22/2011
8054213Multiple beam directed energy system
A method and apparatus for transmitting beams of electromagnetic energy. A plurality of beams having a first number of frequencies and a number of beams having a second number of frequencies are transmitted. The plurality of beams and the number of beams overlap eac...
11/08/2011
8044838Methods and systems for determining the phase constant for a dielectric medium
A method for determining a phase constant for a dielectric medium is provided. The method includes deploying a calibration object with a known free-space spectral response within a dielectric medium of interest, determining the spectral response of the calibration o...
10/25/2011
8044839Combined radar and communications link
In a CW radar system for detecting motion behind a wall involving modulation of the radar transmission, means are provided to interrupt the CW wave when motion is detected and to use the same radar transmitter to transmit a serial digital message to a remote monitor...
10/25/2011
8040272Leading and lagging aperture for linear ground penetrating radar array
A radar array linearly traverses an area of ground. Additional radar elements fore and aft of the array detect changes in elevation and orientation of the array. These elements act as a preview for the height changes due to ground variation. Any variation in height ...
10/18/2011
8040273Radar for imaging of buildings
According to one embodiment, a radar includes multiple antenna elements coupled to an image processing application. The antenna elements have a differing vertical spatial separation relative to one another and are configured to transmit a radio-frequency signal towa...
10/18/2011
7999722Through-wall imaging device
A through-wall imaging device having antenna elements for transmitting and receiving signals adapted to pass through a wall for imaging objects therebehind, having a base with a carrier portion and a plurality of spaced-apart extensions connected thereto. At least a...
08/16/2011
7999723Device and method for detecting non-linear electronic components or circuits especially of a booby trap or the like
The invention relates to a device and a method wherein tunable transmitters and detectors (receivers) are integrated into a non-linear detection system and a narrow-band signal having a variable frequency is used. The scanable frequency range should be between 10-10...
08/16/2011
7994963High-sensitivity subsurface sensing system
A target is sensed by an antenna array having a transmitter antenna and a receiver antenna, both of which are caused to be electromagnetically coupled to the target. The antenna array is rotated, and as the array rotates, a change in at least one of the coupling bet...
08/09/2011
7986260Circularly polarized antennas for active holographic imaging through barriers
Circularly-polarized antennas and their methods of use for active holographic imaging through barriers. The antennas are dielectrically loaded to optimally match the dielectric constant of the barrier through which images are to be produced. The dielectric loading h...
07/26/2011
7982656Imaging apparatus and method
A millimeter wave imaging apparatus and method capable of identifying the presence of relatively thin dielectric materials is disclosed. The method involves taking a plurality of millimeter wave images of a scene at different frequencies and analyzing the images at ...
07/19/2011
7982657Ultra-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 a homogeneous material (e.g., metal plate), determining coefficients ...
07/19/2011
7978120Imaging system and method
A radar imaging system for capturing an image of an object within an area of interest through at least one visual impairment. The radar imaging system comprises at least one radar array. The radar array includes a plurality of transmitter elements and a plurality of...
07/12/2011
7973697Surveillance systems and methods with subject-related screening
A surveillance system is disclosed. In some embodiments, the surveillance system may include at least one controller configured to receive information data from at least one upstream information source and to control operation of at least one controllable downstream...
07/05/2011
7956794Short-range radar having a multiple sensor system for determining the location of objects enclosed in a medium
A radar device is described, in particular a hand-held short-range radar for determining the location of objects enclosed in a medium, including at least one radar sensor, which generates a first, high-frequency detection signal for penetrating a medium to be tested...
06/07/2011
7948428Millimeter wave imaging system with frequency scanning antenna
A millimeter wave imaging system. The system includes one or more millimeter wave frequency scanning antenna for collecting frequency dependent beams of millimeter wave radiation from a narrow one-dimensional field of view and millimeter wave amplifier components fo...
05/24/2011
7928892Identification and mapping of underground facilities
A system or method of creating a map of voids in the ground based on a scattered electromagnetic signal includes traversing a receiver/probe in a near field above a target area; generating a signal from a signal transmitter, the signal having a predetermined wavelen...
04/19/2011
7913198Method for designing array antennas
A method for designing low signature array antennas using a calculation method. The method proposes a way of improving antenna and signature performance of array antennas. According to the method electromagnetic antenna and signature characteristics are specified, a...
03/22/2011
7907081Millimeter wave imaging system
An imaging system operative in a frequency range starting from X band and including the terahertz region has a receiving antenna having a spheroidal reflector. One or more arrays of detectors disposed at the focus adjacent to the reflector of the receiving antenna p...
03/15/2011
7903020System and methods for remote sensing using double-sideband signals
A sensing system is provided that includes a transceiver. The transceiver includes a transmitter chain that transmits a double-sideband signal having first and second frequency components, and a receiving chain that receives the double-sideband signal after it is re...
03/08/2011
7898456Apparatus and method for detecting and locating hidden objects
An apparatus and method for detecting and locating hidden objects employs a symmetrical array of five directional antennas, including a central transmit antenna and a pair of receive antennas at each side of the transmit antenna, respectively. All of the antennas ar...
03/01/2011
7898455Handheld instrument capable of measuring heartbeat and breathing motion at a distance
The apparatus of the present invention consists of a MicroPower Radar (MPR), a data acquisition (DAQ) element and a PDA. The radar sends a short, low-amplitude signal of radio-frequency (RF) energy toward the target scene. This signal reflects from the target and is...
03/01/2011
7893862Method and apparatus for using collimated and linearly polarized millimeter wave beams at Brewster's angle of incidence in ground penetrating radar to detect objects located in the ground
A detection system comprises a transmitter unit, a receiver, and a processor. The transmitter unit is capable of transmitting a first collimated beam having a first frequency and a second collimated beam having a second frequency into a ground, wherein the first col...
02/22/2011
7889113Mmw contraband screening system
An inspection system that can detect contraband items concealed on, in or beneath an individual's clothing. The system employs millimeter wave radiation to detect contraband items. The system is described in connection with a check point security system that include...
02/15/2011
7855673Holographic imaging of natural-fiber-containing materials
The present invention includes methods and apparatuses for imaging material properties in natural-fiber-containing materials. In particular, the images can provide quantified measures of localized moisture content. Embodiments of the invention utilize an array of an...
12/21/2010
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