Communications: directive radio wave systems and devices (e.g., radar, radio navigation) inventions 04/06

20060087471 - Syntactic landmine detector: Disclosed is a Syntactic Landmine Detector. The syntactic landmine detector processes a received signal from a ground penetrating RADAR which contains at least one spatial sequence, the spatial sequence containing relative spatial information locating impedance discontinuities. The spatial sequence is then associated with at least one physical characteristic of a...

20060087472 - System and method for triggering an explosive device: A proximity fuze (proximity fuse) comprising an ultra wideband (UWB) radar transmitter, a UWB radar receiver, an antenna, a timing system, and a signal processor. One embodiment includes an antenna with an annular conical radiation pattern. In another embodiment, a trigger delay is produced that is related to target detection...

20060087473 - Radar system using quadrature signal: A radar system using a quadrature signal includes a quadrature push-push oscillator for generating four harmonics with a 90-degree phase difference from each other, and producing two-balanced 2nd harmonic signals from the harmonics; a first coupler block for radiating one of the 2nd harmonics through an antenna; a second coupler...

20060087474 - Method and system for monitoring location based service emitter instructure: A system and method for monitoring location based service emitter infrastructure. Beacon data is stored, the beacon data transmitted by beacons in an area and detected by a client device that is moved along a path at the location. The beacon data along the path of the client device is...

20060087475 - Correlation interferometer geolocation: Correlation Interferometer Geo Location (CIGL) uses DF antenna array movement on an aircraft while taking a Plurality of sets of transinitted signal Measurements. Each measurement set is stored as data in a covariance matrix, and the matrices are each decomposed to yield measured array vectors. Using an array manifold table...

20060082488 - Advanced electromagnetic location of electronic equipment: An apparatus for measuring at least one of unintentional and intentional electromagnetic emissions for at least one of enabling electromagnetic location of predetermined electronic equipment giving off such at least one of such unintentional and intentional electromagnetic emissions, tagging such predetermined electronic equipment and tracking such predetermined electronic equipment and...

20060082490 - Method and system for data fusion using spatial and temporal diversity between sensors: A method and system provide a multi-sensor data fusion system capable of adaptively weighting the contributions from each one of a plurality of sensors using a plurality of data fusion methods. During a predetermined tracking period, the system receives data from each individual sensor and each data fusion method is...

20060082489 - Radar presence alert for wlan: In a wireless network that uses some of the same channels as radars, an operationally separate radar detection device may be used to detect the presence of a radar signal, and notify at leas one network device of that detection so the wireless network devices may switch to a non-interfering...

20060082491 - Methods for detection and tracking of targets: The present invention relates to active sensor applications, and more particularly is directed to efficient systems and methods for detection and tracking of one or more targets. The invention provides a method for receiving signals reflected from one or more targets, processing the received signals and the transmitted signal to...

20060082492 - Pulse wave radar device: To achieve a purpose of the present invention, a pulse wave radar device related to the present invention modulates a first transmitting pulse and a second transmitting pulse which are separated from each other by a predetermined lapse of time and transmits a transmitting pulse wave and, if a lapse...

20060082493 - 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 behavior data detector 11 generates current level detection data by detecting a level behavior of sensed image...

20060082494 - Method and system for sampling at least one antenna: A method for testing at least one antenna having a receiver module and a coupling module which is arranged between the antenna and the receiver module. The antenna and the receiver module are supplied with a noise signal as a test signal by the coupling module. An instantaneous transmission coefficient,...

20060082495 - Navigation apparatus: A navigation apparatus includes a GPS receiver, an error-circle-radius calculating subunit, and a vehicle-position calculating unit. The GPS receiver receives radio waves transmitted from a plurality of GPS satellites and produces a GPS position. The error-circle-radius calculating subunit detects elevation angles of the plurality of GPS satellites used for calculating...

20060082496 - Radiation-hardened fast acquistion/weak signal tracking system and method: A global positioning system (GPS) receiver and method of acquiring and tracking GPS signals comprises an antenna adapted to receive GPS signals; an analog radio frequency device operatively connected to the antenna and adapted to convert the GPS signals from an analog format to a digital format; a plurality of...

20060082497 - Method and apparatus for obtaining satellite trajectory data at a satellite positioning system receiver: Method and apparatus for locating position of a mobile receiver is described. In one embodiment, satellite measurements are obtained at the mobile receiver for a plurality of satellites in a satellite positioning system constellation. Satellite trajectory data is obtained at the mobile receiver from a server. Ephemeris data is obtained...

20060082498 - Culled satellite ephemeris information based on accurate distance in range calculations, for quick, accurate assisted locating satellite location determination: Locating satellites (e.g., GPS) are culled into a preferred group having a longest dwell time based on a time passing through an ellipsoid arc path through a cone of space, and communicated to mobile devices within a particular region (e.g., serviced by a particular base station). The culled locating satellites...

20060082499 - Culled satellite ephemeris information for quick, accurate assisted locating satellite location determination for cell site antennas: Locating satellites (e.g., GPS) are culled into a preferred group having a longest dwell time based on a time passing through an ellipsoid arc path through a cone of space, and communicated to mobile devices within a particular region (e.g., serviced by a particular base station). The culled locating satellites...

20060082500 - Prioritized list of potential culled satellite ephemeris information for quick, accurate assisted locating satellite location determination: Locating satellites (e.g., GPS) are culled into a preferred group having a longest dwell time based on a time passing through an ellipsoid arc path through a cone of space, and communicated to mobile devices within a particular region (e.g., serviced by a particular base station). The locating satellites may...

20060082501 - Method and apparatus for direction finding using phase comparison: A method and apparatus for direction-finding in elevation using only phase comparison of the received signals are disclosed. The apparatus comprises a vertical linear array, a combiner and a comparator. The vertical antenna array comprises a plurality of antennas and detects signals from a signal source. The combiner combines the...

20060082502 - Positioning system, apparatus and method: A positioning system, apparatus and method include a transmitter (2), a receiver (4) and a plurality of reflectors (6). A signal is transmitted from tranmitter to receiver both directly and via the reflectors (6). A location server (8) calculates the unknown position of the transmitter or receiver by identifying signal...

20060077091 - Super-resolution based on frequency domain interferometric processing of sparse multi-sensor measurements: A system for obtaining frequency domain interferometric super-resolution of a target scatterer, having a first and a second coherent transceivers, a mutual coherent sub-system and an estimation system. The first and second coherent transceivers are operative to produce a plurality of first and second sampling signals separated from each other...

20060077092 - System and method for enhanced situational awareness of terrain in a vertical situation display: A vertical situation display (“VSD”) system according to the invention generates a terrain image that represents a profile view of terrain elevation relative to the position of an aircraft traveling above the terrain. The VSD system generates the VSD image such that the terrain image is biased toward the lower...

20060077093 - Reducing antenna boresight error: Reducing antenna boresight error includes receiving radar pulses reflected from the ground, where pulses are emitted from the antenna of a radar system, reflected by the ground, and received by the antenna. The return pulses carry information about the ground. Measurement indices are established from radar and platform parameters, and...

20060077094 - Information gathering using reflected satellite signals: A method of using reflected satellite signals, such as GPS signals or high orbit satellite signals, to determine information including the steps of: receiving direct and reflected satellite signals from the same satellite at one or more receivers, comparing a power of said reflected satellite signal with a power of...

20060077095 - Precision gps driven utility asset management and utility damage prevention system and method: A method and apparatus, including software, for the development and operational use of precise utility location and utility asset management information. Field-usable data sets may be produced that meet standards of accuracy and usability that are sufficient for use by field operations personnel participating in damage prevention activities associated with...

20060077096 - Navigation satellite acquisition in satellite positioning system receiver: A method in a mobile satellite positioning system receiver operating in cold-start mode, including searching for and detecting (310) a first satellite in a constellation of orbiting satellites, searching (320) for a second satellite based on detection probability information for non-detected satellites, the detection probability information obtained using information about...

20060077097 - Antenna beam steering and tracking techniques: A method includes determining if a dynamics requirement for an antenna positioner is exceeded, and employing a combination of mechanical and electronic beam steering techniques to steer a single antenna beam if the dynamics requirement is exceeded....

20060077098 - Panel antenna with variable phase shifter: A panel antenna having a variable phase shifter module with at least one main-PCB having an input trace coupled to a wiper junction. An arcuate trace on the main-PCB extending between a first output trace and a second output trace, the arcuate trace having an arc center proximate the wiper...

20060077099 - Method and apparatus for pointing the beam of a wind profiler: The present invention relates to a method and apparatus for pointing the beams (63-67) of a wind profiler comprising a stationary antenna matrix (61) with several individual antenna elements (62). According to the method an input signal is fed to the antenna matrix (61), and the phase of the input...

20060077100 - Testing systems and methods for a resource constrained device: Systems and methods for providing symbolic information about fields, methods, and/or classes for a target device. A system and method may be used where the runtime processing is split between a host system and a target system. At the target device a test program uses a symbol not defined on...

20060071845 - Multifunction receiver-on-chip for electronic warfare applications: What is provided is a receiver-on-a-chip comprising a monolithic integrated circuit that reduces the receiver to a cigarette-pack-sized assembly mountable directly at an antenna element, with a much-increased operational bandwidth and instantaneous bandwidth, increased dynamic range and with a two-order-of-magnitude decrease in size and weight. Moreover, because of the elimination...

20060071846 - Coherent laser radar: To obtain a coherent laser radar device that realizes high reliability and the high output of a transmitted light, the device includes a first optical coupler that branches a laser beam from a laser source into two lights, a local light and a transmitted light, an optical modulator that modulates...

20060071847 - Method and apparatus for correcting velocity-induced range estimate phase errors in a two-tone monopulse cw radar: A method and apparatus is provided for correcting the phase difference estimate derived from a two-tone CW radar to correct velocity-induced range estimate phase errors by offsetting the phase difference estimate with a phase correction equal to either of the Doppler frequencies associated with returns from an object multiplied by...

20060071848 - Microwave sealing for radar level gauges: A radar level gauge system is disclosed, having a transmitter for transmitting measuring signals towards the surface of the filling material, a receiver for receiving echo signals from said surface and a fastening structure adapted to secure said transmitter and receiver in a measuring position on a feed-through structure located...

20060071849 - Tactical all weather precision guidance and navigation system: Precision navigation within a theater of operations is performed by receiving, at each of a plurality of spaced apart known locations, GPS satellite signals from a plurality of GPS satellites, wherein the known locations approximately define the theater of operations. A measure of error in the GPS satellite signal for...

20060071850 - Gps receiver with encrypted data transmission: A GPS receiver device is disclosed comprising a GPS antenna and a GPS RF front-end including an analogue to digital converter for receiving GPS signals and outputting GPS signal samples; and a processor for encrypting the GPS signal samples and transmitting the encrypted GPS signal samples to an external device....

20060071851 - Systems and methods for acquisition and tracking of low cnr gps signals: A receiver for continuous carrier phase tracking of low carrier-to-noise ratio (“CNR”) signals from a plurality of radio navigation satellites while the receiver is mobile. The receiver may have: a radio frequency (RF) front-end that provides satellite data corresponding to signals received from the plurality of radio navigation satellites; an...

20060071852 - Positioning signal transmission apparatus: A reception high-frequency unit receives a GPS signal transmitted from a satellite configuring GPS. A signal generation unit generates a plurality of pseudo random noise codes that are used for the positioning operation by a positioning apparatus for implementing a positioning operation based on the GPS signal and that are...

20060071853 - Method and system for determining direction of transmission using multi-facet antenna: A method for determining direction of transmission using an antenna array having a number of panels is disclosed. Each panel is configured to receive signals. According to one aspect of the method, each of the panels is directed to receive signals from a transmitting node. For each panel, a first...

20060071854 - Ranging and positioning method and apparatus: The method and apparatus are for use in a building (2) having walls (8) and corridors (10) extending longitudinally (4) and laterally (6). Base stations (20, 22) have antennae orientated with a cosec2 pattern longitudinally (4) and laterally (6) and range a mobile station (26) to determine its position....

20060071855 - Apparatus and method for cdma time pseudolite for repeater identification: Apparatus and method for resolving repeater location ambiguities in a CDMA network using a CDMA Time Pseudolite. The CDMA Time Pseudolite includes a CDMA receiver to receive a CDMA signal with an embedded CDMA timing, a baseband processor to extract the CDMA timing and to adjust the CDMA timing to...