Communications: directive radio wave systems and devices (e.g., radar, radio navigation) inventions 10/06

20060238401 - Detector for embedded elongate objects: A detector (1) for detecting embedded elongate objects (5) has an evaluating unit (6) with computing means (7) and an output device (8), and a handheld measuring head (9) which can be moved over a surface (F) and which has a path a detector (10) and a transmitting-receiving unit (11a)...

20060238402 - System and method for ground proximity warning with enhanced obstacle depiction: Systems and methods for displaying ground obstructions on a visual display are disclosed. In an embodiment, a ground proximity warning system includes at least one aircraft sensor system operable to acquire aircraft data and a ground proximity warning computer coupled to the aircraft sensor system to process the aircraft data...

20060238403 - Method and system for destroying rockets: A system that includes a synchronized network of three search and track radars and associated processing means and communication channels. The radars are configured to detect and track the target. In response to detected target, an interceptor is launched towards the target. The radars are configured to measure and track...

20060238404 - Radar device: A radar device which is installed in a vehicle or the like needs to detect a target at a short distance from several tens of centimeters to several tens of meters and, therefore, has a problem that a reflected wave from the target may be reflected by a front case...

20060238405 - Radar device: A radar device separates directions of a plurality of targets, obtained from combinations of antenna beams, with a high accuracy. The radar device includes: a direction calculating unit for calculating a primary direction, which is the direction of a target, from a combination of characterizing quantities calculated by a signal...

20060238406 - Low-cost, high-performance radar networks: A real-time radar surveillance system comprises at least one land-based non-coherent radar sensor apparatus adapted for detecting maneuvering targets and targets of small or low radar cross-section. The radar sensor apparatus includes a marine radar device, a digitizer connected to the marine radar device for receiving therefrom samples of radar...

20060238407 - Real-time multistatic radar signal processing system and method: A real-time signal processing engine robustly detects, localizes, tracks and classifies ground targets based on radar signals from a multistatic radar system. The system differentiates between different targets based on an optimized cost function, which can include the total returned normalized pulse energy. The local transmitters/receivers can communicate with each...

20060238408 - Doppler-sensitive adaptive coherence estimate detector methods: A method is provided for detecting a target signal of a specific known form in the presence of clutter. The method includes dividing a set of initial training data, derived from returns from a burst of identical pulses, into a set of censored data and a set of uncensored data....

20060238409 - Destination prediction apparatus and destination prediction method: To provide a destination prediction apparatus which can predict a destination of a user by using a carried item carried by the user, the destination prediction apparatus according to the present invention includes: a position information detection unit which detects a present position of a mobile terminal; a carried item...

20060238410 - 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...

20060238411 - System and method for spatially diverse radar signal processing: An ultra wideband radar system for detecting objects where at least one of the radar system or the object is moving. The radar may be scanned in at least one dimension, which may include angle or range. The system includes a scan combiner that combines scan information in accordance with...

20060238412 - Method and apparatus for detecting slow-moving targets in high-resolution sea clutter: An apparatus for non-coherently detecting slow-moving targets in high resolution sea clutter includes a binary detector for converting high resolution radar returns, produced in response to a radar pulse scan of a plurality of identical pulses, into corresponding binary outputs based on a comparison of range cell magnitudes with a...

20060238413 - Method and system for calibration of a radio direction finder: A calibration method and a system for providing calibration data for use with a direction finder are provided. The method comprises providing a relative motion of a calibration receiver in a circle manner with respect to calibration transmitter at a predetermined distance from each other. The method also includes preparing...

20060238414 - Microwave self-phasing antenna arrays for secure data transmission & satellite network crosslinks: A high-directivity transponder system uses a dual system of a retrodirective array transmitting a data signal peak toward an interrogator source, and a self-null-steering array transmitting a null toward the interrogator source and a jamming signal elsewhere, resulting in high S/N reception at the interrogator source and avoidance of interception....

20060238415 - Apparatus and methods to share time and frequency data between a host processor and a satellite positioning system receiver: Methods and apparatus to share time and frequency data between a host processor and a satellite position system (SPS) receiver in a satellite positioning system are disclosed. An example method disclosed herein generates a host processor local time based on a real-time clock associated with the host processor; adjusts the...

20060238416 - Method and system for selective control of charging a power source: The invention concerns a method (200) and system (100) for selective control of charging a power source (122). The method can include the steps of charging (212) the power source of an electronic device (136) in which the electronic device also includes a global positioning system unit (118) and conducting...

20060238417 - Portable electronic devices, methods and computer program products using activity-triggered gps updates: A portable electronic device, e.g., a mobile communications terminal, PDA or other handheld device, includes a GPS receiver and is configured to conduct non-GPS activities. The GPS receiver is transitioned out of a sleep state to attempt to acquire at least one GPS satellite signal responsive to a selected non-GPS...

20060238418 - Determining mobile terminal positions using assistance data transmitted on request: A mobile terminal (UE) comprises means (CR) for acquiring pseudo-random codes modulating signals received from positioning satellites (SN) in view belonging to a constellation (CS) and related to a reference time, and computation means (MC1-MC3) for determining its position received from the acquired codes and from navigation data contained in...

20060238419 - Method and apparatus for aiding positioning of a satellite positioning system and receiver: A satellite positioning system (SPS) receiver (104) operates according to a method (200) having the steps of measuring (201) a distance between the SPS receiver and a transmission source (301) according to a radio frequency (RF) signal transmitted by the transmission source, calculating (212) an approximate location on Earth from...

20060232463 - Joint stars embedded data link: A system comprises a radar for producing a radar interrogation signal, a transponder for receiving the radar interrogation signal and producing a transponder signal including a first linear frequency modulated pulse having an increasing frequency and a second linear frequency modulated pulse having a decreasing frequency, and a processor for...

20060232464 - Dual channel spatially adaptive cfar: A system for reducing CFAR loss due to sea clutter is disclosed. The system includes a first channel tuned for CFAR gain in a spatially correlated background and a second channel tuned for low CFAR loss in spatially uncorrelated backgrounds. Each of the channels employs a distribution free CFAR using...

20060232465 - Radioterminals and associated operating methods that alternate transmission of wireless communications and processing of global positioning system signals: A radioterminal includes a wireless communications transmitter, a wireless communications receiver and a GPS receiver. A controller is configured to enable the GPS receiver when the wireless communications receiver is receiving wireless communications, and to disable the GPS receiver when the wireless communications transmitter is transmitting wireless communications. Related methods...

20060232466 - Method and apparatus for tracking location of user equipment by using integrated gps and tdoa scheme: A method and an apparatus for tracking a location of a UE by using an integrated GPS and TDOA scheme in a mobile communication network are provided. A GPS position solution of the UE is obtained using GPS code information. TDOA position solutions are obtained using pilot signal transmission times...

20060232467 - System and method for multipath mitigation using clustered positioning signals: A diversity system for positioning systems is disclosed, whereby a plurality of positioning signals, which are transmitted and/or are received from substantially the same location, are received and interpreted by an observing receiver. The observing receiver is configured to compare and then select substantially coherent positioning signals, and/or create a...

20060232468 - Antenna unit and method of transmission or reception: An antenna unit comprising orientation detection means and/or force detection means and an antenna is operable to control its transmission and/or reception characteristic in response to detected orientation of the antenna unit. Absolute orientation of the unit will affect the transmission and/or reception characteristics; in one embodiment changes in orientation...

20060232469 - Receiver assembly and method for multi-gigabit wireless systems: The present invention describes a receiver assembly for receiving an analog signal and converting the analog signal to a digital signal. The receiver assembly is, preferably, capable of receiving a signal operating at approximately 60 GHz. The receiver assembly includes a filter, a down converter, a demodulator, a latch, a...

20060232470 - System for the relative navigation of aircraft and spacecraft using a phased array antenna: A system for the relative navigation of aircraft and spacecraft is disclosed which uses a series of short duration, unmodulated radio pulses transmitted from a phased array antenna. The aircraft or spacecraft whose position is to be determined from another is called as the local station, whereas the other craft...

20060232471 - Phase and frequency control of a radio frequency generator from an external source: Controlling a phase and/or a frequency of a RF generator. The RF generator includes a power source, a sensor, and a sensor signal processing unit. The sensor signal processing unit is coupled to the power source and to the sensor. The sensor signal processing unit controls the phase and/or the...

20060232472 - Location determination utilizing environmental factors: A method and apparatus for determining the geographic location of a user incorporates the sensing of a plurality of physical environmental parameters at the user's location. The parameter values are compared to corresponding parameter values associated with known locations, and a best-fit correlation is established. The identity of the determined...

20060232473 - Method for leveraging diversity for enhanced location determination: A method for enhanced location determination using temporal, spatial and/or frequency diversity. Multiple ranging signal measurements are obtained from each signal source using either temporal, spatial and/or frequency diversity. In one embodiment, the multiple ranging signal measurements are combined using a metric to obtain a single ranging signal measurement. The...

20060227035 - System and method for detecting emitter signals in the presence of unwanted signals: A method for receiving at least one signal emitted by at least one emitter includes defining a first dwell associated with a first signal. The first dwell has a frequency range that overlaps at least a portion of a frequency range of a second signal. The method also includes detecting...

20060227036 - Declutter of graphical tcas targets to improve situational awareness: Traffic collision and avoidance systems and methods for a host aircraft. The system receives traffic information from one or more target aircraft, determines threat levels of target aircraft associated with the received traffic information, generates one or more objects based on the determined threat levels and a pre-defined threat level,...

20060227037 - Object sensing apparatus: While an FM-CW mode for sensing an object, in which a frequency of an electromagnetic wave transmitted from a transmission/reception antenna 6 is continuously modulated, and also, a CW mode for judging an abnormal condition, in which the frequency of the electromagnetic wave to be transmitted from the transmission/reception antenna...

20060227038 - System and method for sidelobe reduction using point spread function expansion: Systems and methods for detecting targets using pulse-compressed radar signals are disclosed. In one application, relatively small targets that are masked by the time-sidelobes of a larger target's return signal can be detected. The methods include a signal expansion type algorithm that is used to process the pulse-compressed return signal....

20060227039 - Instantaneous passive range finding: A method and apparatus for use in determining the range in a single time sample from a platform to a target are disclosed. The method includes receiving radiation emanating from the target at two points on the platform in a common time sample; detecting the received radiation and generating a...

20060227041 - Apparatus, method and computer program product for calibrating image transform parameter, and obstacle detection apparatus: A calibration apparatus includes an obstacle detection unit that detects an obstacle on an arbitrary surface in a three-dimensional space in one of a plurality of images obtained by taking an image pickup subject from a plurality of directions, by using a transform parameter transforming a point on the surface...

20060227040 - System and method for radar calibration using antenna leakage: The system and method for radar calibration using antenna leakage is a simplified means of calibrating the channels in amplitude and phase using natural signal leakage between antennas. It utilizes as calibration signal a wideband sinusoidal Frequency Modulated Continuous Wave (FMCW) waveform with a modulation index and modulation frequency chosen...

20060227042 - System and method for adaptive broadcast radar system: An adaptive broadcast radar system for tracking targets is disclosed. The radar system includes a transmitter having sub-apertures and a receiver having sub-apertures. The transmitter sub-apertures generate and code a signal waveform. The signal waveform is coded with data about the transmitter, including the degrees of freedom. The receiver receives...

20060227043 - Passive geostationary satellite position determination: Systems and methods for accurately determining the position of a satellite such as, for example, a geostationary satellite. In one embodiment, a satellite position determination system (10) includes an uplink station (20), a transceiver (50) onboard the satellite (12), a plurality of receiver stations (30A-30D), and a master station (40)....

20060227044 - Positioning device, control method of positioning device, control program for positioning device, and computer-readable recording medium having positioning device controlling program recorded therein: A positioning device for receiving a satellite signal corresponding to a signal from a positioning satellite including a multipath recurrent district elevation information storing unit for storing multipath recurrent district elevation information indicating the elevation of a multipath recurrent district as elevation information of plural divisional areas, an elevation information...

20060227045 - Base station almanac assisted positioning: A database provides base station almanac information pertaining to more than one network mode of communication. A wireless device accesses this database through a centralized server or network, or via the base station, base station controller or the like, with which it is currently communicating....

20060227046 - Gps receiver with fast acquisition time: Method for acquiring a plurality of GPS signals, in which the signals received from the space vehicles are correlated, in an array of parallel processing modules (20) with local replicas of a pseudorandom code. The local pseudorandom code generators are slewed periodically, on detection of an external periodical trigger INT_ACC,...

20060227047 - Meeting locator system and method of using the same: A meeting locator system enables users, each having a mobile phone equipped with locative sensing capabilities, to receive locative data from one another. The meeting locator system displays the location of each user upon a visual map on a mobile phone of at least one user. The visual map is...

20060227048 - Electronic pitch over mechanical roll antenna: A hybrid antenna for use with satellite communications systems that may be mounted to a fuselage of an airframe and contain an electronic phased-array assembly to electronically steer the pitch of the antenna beam fore and aft of the airframe and mechanically roll the phased-array assembly to provide below-the-horizon coverage....

20060227049 - Overlapping subarray architecture: An embodiment of an electronically scanned array antenna includes an array of radiative elements having an array height. A plurality of separate subarrays of the radiative elements include a first row comprising a first plurality of subarrays, wherein subarrays of the first plurality of subarrays are horizontally non-overlapping with one...

20060227050 - Method and apparatus for direction finding: A direction finding system is used in which a number of adjacent bands are sequentially measured in fast rotation, with the results from each of the bands being FFT processed to provide amplitude and phase information on all of the signals existing within the band. Upon ascertaining that one wishes...

20060220943 - Device for measuring the distance and speed of objects: Transmitted and received radar pulses are correlated in a receiver-side mixer for the measurement of the clearance distance and the speed of objects, using radar pulses. In a control device for specifying range gates, transmitter-side radar pulses that are able to be supplied to the mixer are continuously changed increasingly...

20060220944 - Pulse radar device: The present invention provides a pulse radar device comprising a radar module that includes a transmission unit which transmits a transmitted pulse wave obtained by modulating a transmitted pulse and a reception unit receives a reflected wave of said transmitted pulse wave reflected by a measurement target and demodulates said...

20060220945 - Radar system and computer program: A radar system comprises: a plurality of reception antennas; a transmission wave generating device; a transmission antenna; a mixer; an A/D converter; a storage device which stores the digitized beat signals in association with each of the reception antennas; a Fourier transformation device which Fourier transforms the stored beat signals;...

20060220946 - Interferometer-type radar: A transmitter for transmitting signals to targets and a receiver for receiving signals reflected from targets are included. The transmitter outputs CW signals for detecting direction and velocity of the target. The receiver performs: a function of receiving signals reflected from targets with a plurality of receiving antennas at the...

20060220947 - Compact low power consumption microwave distance sensor obtained by power measurement on a stimulated receiving oscillator: The invention relates to a pulse radar that comprises a receiving oscillator whose transient response is influenced by a received return....

20060220948 - 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, in this case, a reverse bicone antenna. When received, the thus transmitted signals are multiplied by a D.C. replica of each transmitted signal, and thereafter, they...

20060220949 - Interferometer-type rader: 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 target from a transmitting antenna. The receiver includes: a plurality...

20060220950 - Sparse numerical array feed for compact antenna and rcs ranges: Systems and methods enable numerically creating a flat field in a compact radar range with a curved reflector, and without use of a separate phased array of elements, at frequencies lower than those that are possible with currently known, reflector-only compact radar ranges. A compact radar range is calibrated to...

20060220951 - System and method for coherently combining a plurality of radars: Systems and techniques for coherent combining radars include generating a phase and range calibration and initialization values for adjusting a time delay and a phase of a transmitted pulse from one of the radars, resulting in received composite target echoes at each of the radars having contributions from monostatic and...

20060220952 - Electric wave transmitting/receiving module and imaging sensor having electric wave transmitting/receiving module: An electric wave transmitting/receiving module includes: a waveguide including a conductive member and an opening facing a transmitting side and/or a receiving side; a dielectric substrate disposed on a side opposite to the opening of the waveguide; and transmitting/receiving means. The transmitting/receiving means includes a core line, a transmitting/receiving element,...

20060220953 - Stereo display for position sensing systems: A method for display of radar data includes performing a first radar scan to obtain, for at least one object (24), a first range reading, a first azimuth reading, and a first altitude reading. A second radar scan is then performed to obtain, for the at least one object (24),...

20060220954 - Method and system for determining the location of a vehicle: A first location determining receiver determines a first location estimate of a vehicle. The first location determining receiver is associated with satellite beacons. A second location determining receiver determines a second location estimate of a vehicle. The second location determining receiver is exclusively associated with terrestrial beacons. A selector selects...

20060220955 - Geographic marking device with rfid transponder: Embodiments of the present invention recite a geographic marking device and a data storage device coupled therewith for storing information associated with a geographic location at which the geographic marking device is located. In embodiments of the present invention, the information may comprise geographic position data of the geographic marking...

20060220956 - Time delay beamformer and method of time delay beamforming: A time delay beamformer comprises input channels, which have associated samplers arranged to sample inputs signal carried upon the input channels. The samplers sample the input channels at a number of points in time to produce a number of sampled signals. An adaptive processor receives each of the input signals...