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| Number | Title | Issue Date |
| 8169355 | Device for imaging test objects using electromagnetic waves, in particular for inspecting people for suspicious items To depict test objects using electromagnetic waves, particularly to check people for suspicious articles, an apparatus is provided having: an antenna which emits electromagnetic waves, particularly millimetric waves, means for concentrating the emitted waves in thre... | 05/01/2012 |
| 8138960 | Map information update support device, map information update support method and computer readable recording medium A map information update support device includes a communication interface unit that acquires plural items of radar image data of the same observation area acquired at different times, respectively, a registration processing unit that registrates the plural items of... | 03/20/2012 |
| 8102299 | Method of strip-map synthetic aperture radar auto-focus processing A strip-map Synthetic Aperture Radar (SAR) auto-focus image generation process is provided. Batches of raw radar return data are processed in order to form batch images which each have a valid region between invalid regions. The process determines an estimate of the... | 01/24/2012 |
| 7999724 | Estimation and correction of error in synthetic aperture radar Methods, systems, and computer-readable media are disclosed for correcting synthetic aperture radar data to correct for gain errors in fast time. According to an embodiment, input data is received from a synthetic radar system representing returned data from an indi... | 08/16/2011 |
| 7924210 | System, method, and apparatus for remote measurement of terrestrial biomass A system, method, and/or apparatus for remote measurement of terrestrial biomass contained in vegetative elements, such as large tree boles or trunks present in an area of interest, are provided. The method includes providing an airborne VHF radar system in combinat... | 04/12/2011 |
| 7898457 | System and method for processing imagery from synthetic aperture systems A method of processing a temporal sequence of base images from a synthetic aperture system such as a synthetic aperture radar is provided that simplifies the task of identifying moving objects. The method comprises the steps of firstly temporally filtering a plurali... | 03/01/2011 |
| 7898458 | Disaster countermeasure support method A ground surface as an image acquiring object is acquired by a synthetic aperture radar mounted on an artificial satellite at a usual time before occurrence of a disaster and thereby radar image data are obtained. After the occurrence of the disaster, an image of th... | 03/01/2011 |
| 7884752 | Radar system and a method relating thereto A radar system comprising a platform movable along a path in relation to a ground surface portion and carrying a positioning device, a timing device and a radar equipment. It is adapted to implement synthetic aperture radar (SAR) for imaging the ground portion. It i... | 02/08/2011 |
| 7876256 | Antenna back-lobe rejection A method of for processing signals in a radar system is shown comprising an antenna system having at least two antenna elements, a beam forming arrangement (ABF_RX, ABF_TX) for selectively steering the directivity of the antenna system in a given selected direction,... | 01/25/2011 |
| 7830300 | Radar imaging system and method using directional gradient magnitude second moment spatial variance detection A detection system and method. The inventive system includes an arrangement for receiving a frame of image data; an arrangement for performing a rate of change of variance calculation with respect to at least one pixel in said frame of image data; and an arrangement... | 11/09/2010 |
| 7812758 | Synthetic aperture radar (SAR) imaging system One embodiment of the invention includes a synthetic aperture radar (SAR) system. The system comprises a radar transmitter configured to transmit a combined signal, the combined signal comprising a first signal that is a modulated SAR radar signal and a second signa... | 10/12/2010 |
| 7777666 | Celestial body mapping systems and methods Systems and methods for mapping a surface of a celestial body containing objects and terrain are provided. One system includes a Synthetic Aperture RADAR (SAR) module configured to capture a high-resolution image of the terrain of at least a portion of the surface a... | 08/17/2010 |
| 7764220 | Synthetic aperture radar incorporating height filtering for use with land-based vehicles According to one embodiment, a synthetic aperture radar includes an image former coupled to a pair of antennas that are oriented at differing elevational angles relative to one another. The antennas are configured in a land-based vehicle that moves horizontally rela... | 07/27/2010 |
| 7728757 | Autofocus for minimum entropy through multi-dimensional optimization A computer implemented method, apparatus, and computer usable program code for focusing an image. In one advantageous embodiment, a method is used to focus an image. Optimization is performed to identify an array of coefficients for a polynomial representing a phase... | 06/01/2010 |
| 7728756 | Wide area high resolution SAR from a moving and hovering helicopter A hovering helicopter has a radar transmitter/receiver for transmitting radar pulses for illuminating a target for SAR imaging, and rotor blades for generating lift. Radar reflectors are on the rotor blades. The radar reflectors are oriented to reflect the radar pul... | 06/01/2010 |
| 7710307 | Method and device for high-resolution imaging of test objects by electromagnetic waves, in particular for monitoring people for suspicious items In order to image test objects by electromagnetic waves, in particular millimetric waves, a test object is illuminated with the electromagnetic waves, the scattered waves are received, and are evaluated for a representation of the test object in the form of an image... | 05/04/2010 |
| 7705767 | Synthetic aperture radar and processing method of reproducing synthetic aperture radar image A synthetic aperture radar to provide high resolution in the azimuth direction under the predetermined conditions of wide observation swathwidth in the range direction, stripmap observation and free PRF (Pulse Repetition Frequency) comprises a transmission antenna | 04/27/2010 |
| 7688248 | System and method for 3D radar image rendering A 3D rendered image of a radar-scanned terrain surface is provided from a radar return signal from the surface, wherein the return signal includes data indicative of azimuth, elevation, and range of a radar-illuminated area of the surface. The data are processed for... | 03/30/2010 |
| 7619554 | Passive radar utilizing space-borne digital electromagnetic illuminators In a passive radar system a space-borne transmitter broadcasts wide-band digitally modulated signals over a region and illuminates the region. A receiver antenna is oriented to receive radiation from at least one portion of the region. The portion is an area viewed ... | 11/17/2009 |
| 7609196 | Method and device for imaging test objects by means of electromagnetic waves, in particular for inspecting individuals for suspicious items A method for imaging test objects by means of electromagnetic waves, in particular for the purpose of checking individuals for suspicious articles, in which method the test object is illuminated by electromagnetic waves, the scattered waves are received and evaluate... | 10/27/2009 |
| 7583221 | Method and device for imaging test objects by means of millimeter waves, in particular for inspecting individuals for suspicious objects A method for imaging test objects by millimeter waves, especially for checking individuals for suspicious objects is provided, whereby the test object is gradually irradiated with millimeter waves along its circumference and the scattered waves are received and eval... | 09/01/2009 |
| 7567198 | Subaperture 3D imaging Embodiments of methods, apparatuses, and articles for receiving phase history data collected from synthetic aperture radar imaging of a terrain, dividing the received phase history data into a plurality of subsets corresponding to a plurality of subaperture interval... | 07/28/2009 |
| 7545307 | Target recognition system and method with unknown target rejection The present invention describes a new QR enclosing voting scheme that allows the extraction of base signatures of objects using a shortest path QR algorithm, providing a probability distribution measuring the occurrence of each random projection base of the object u... | 06/09/2009 |
| 7511655 | Method and apparatus for 3-D sub-voxel position imaging with synthetic aperture radar A method and apparatus for determining three dimensional sub-voxel positions using synthetic aperture radar. The apparatus includes at least four non-coplanar, phase-coherent synthetic aperture radar (SAR) platforms comprising a plurality of phase-synchronized local... | 03/31/2009 |
| 7482970 | Method for producing map images of surface sea current velocity vectors and altimetric radar system using the method A method for producing map images of current velocity vectors at the surface sea is described in which beams of electromagnetic waves are emitted towards the surface using a system, towards the left forward and right forward sides of the track of the system, and tow... | 01/27/2009 |
| 7456779 | System and method for 3D radar image rendering A 3D rendered image of a radar-scanned terrain surface is provided from a radar return signal from the surface, wherein the return signal includes data indicative of azimuth, elevation, and range of a radar-illuminated area of the surface. The data are processed for... | 11/25/2008 |
| 7456780 | Method and system for developing and using an image reconstruction algorithm for detecting and imaging moving targets Image reconstruction approaches that use standard Cartesian-sampled, frequency-domain SAR data, which can be collected by a platform with a single radar antenna, together with its associated metadata as the input and generate an output comprised of a set of images t... | 11/25/2008 |
| 7436349 | Controlling data collection to support SAR image rotation A desired rotation of a synthetic aperture radar (SAR) image can be facilitated by adjusting a SAR data collection operation based on the desired rotation. The SAR data collected by the adjusted SAR data collection operation can be efficiently exploited to form ther... | 10/14/2008 |
| 7436348 | Interferometer-type radar A transmitter for transmitting signals to targets and a receiver having a large-diameter array antenna for receiving signals reflected from targets are included. The transmitter has a function of outputting an FMCW signal for detecting direction and velocity of the ... | 10/14/2008 |
| 7420504 | Method of operating a multibeam radar A method of operating a multibeam radar carried on a platform flying a mission over a prescribed flight path to obtain images of a plurality of target areas, the beams of said radar being the result of respective transmit pulses and beam returns being received by re... | 09/02/2008 |
| 7417641 | Aeronautical chart display apparatus and method A method and apparatus for converting electronic display aeronautical chart data to aeronautical chart data that is tailored for an avionics display is disclosed. The method and apparatus received by a data processing unit, electronic display aeronautical chart data... | 08/26/2008 |
| 7414566 | System for monitoring airport area A system is for recognizing obstructions and monitoring movements on or above an airport area (1) with sensors (2, 3, 4). A sensor (2) is a radar device having a plurality of antenna elements (12, 14), which are affixed to a curved surfac... | 08/19/2008 |
| 7411540 | Synthetic aperture radar (SAR) data compression A method of compressing phase history (PH) data includes (a) dividing PH data into multiple sub-apertures; (b) transforming the sub-apertures into multiple coarse resolution images; and (c) compressing each of the coarse resolution images. Compressing each of the co... | 08/12/2008 |
| 7397418 | SAR image formation with azimuth interpolation after azimuth transform Two-dimensional SAR data can be processed into a rectangular grid format by subjecting the SAR data to a Fourier transform operation, and thereafter to a corresponding interpolation operation. Because the interpolation operation follows the Fourier transform operati... | 07/08/2008 |
| 7372393 | Method and system for determining unwrapped phases from noisy two-dimensional wrapped-phase images A method converts an input image of noisy wrapped phases to an output image of absolute unwrapped phases. The noisy wrapped phases in the input image are represented as a set of re-wrapped phases and a set of phase shifts. The set of re-wrapped phases are partitione... | 05/13/2008 |
| 7365677 | Compact radar test range A system for testing radar in accordance with one embodiment comprising a target motion platform; a target motion platform controller for controlling motion of the platform; a radar responsive tag and a delay line located on the target motion platform; the radar whi... | 04/29/2008 |
| 7362261 | Linear frequency-modulated pulse radar A linear frequency-modulated pulse radar system is provided in which the echo signal is mixed with a de-ramp signal, in order to reduce the bandwidth. The transmission signal of the pulse radar and the de-ramp signal are generated with the same reference oscillator,... | 04/22/2008 |
| 7348917 | Synthetic multi-aperture radar technology Systems and methods of improving synthetic aperture radar (SAR) system are disclosed. In particular, an example system includes a radar signal radiator configured to transmit radar signal pulses that have a partial bandwidth at a regular interval. The partial bandwi... | 03/25/2008 |
| 7336223 | System and method for establishing the instantaneous speed of an object A system for establishing the speed, in a safe manner, of an object (1) which is travelling along a known trajectory, including a device (3, 7) for locating the object and direction of its movement, a receiver (6) for receiving a signal from a p... | 02/26/2008 |
| 7336217 | Method and apparatus for interferometric radar measurement In a method for interferometric radar measurement, at least two side looking RADAR systems on satellite and/or missile-supported platforms illuminate a common surface area by means of microwave signals. A first side looking RADAR system sends a first radar signal on... | 02/26/2008 |
