Communications: directive radio wave systems and devices (e.g., radar, radio navigation) inventions 05/06

20060109159 - Method and apparatus for detecting, locating, and identifying microwave transmitters and receivers at distant locations: Methods and apparatuses for detecting, locating, and identifying microwave transmitters and receivers at distant locations are disclosed. First and second electromagnetic beams at first and second frequencies, respectively, are transmitted in first and second directions. The second frequency is offset from the first frequency to define an interference difference frequency....

20060109160 - System and method for security inspection using microwave imaging: A microwave imaging system uses microwave radiation provided by a microwave source to image targets. The system includes an array of antenna elements that are capable of being programmed with a respective direction coefficient to direct the microwave illumination from the microwave source toward a position on the target. The...

20060109161 - Technique for cancellation of elevated clutter for the detection of fixed and ground moving targets under trees: A target is detected under a forest canopy or other elevated clutter where the target is obscured by the elevated clutter. Radar returns reflected from the target on the surface, combined with those from the elevated clutter are digitized. Motion compensation is performed for the radar returns with respect to...

20060109162 - Technique for enhanced quality high resolution 2d imaging of ground moving targets: A radar receiver on a moving platform images a moving target and non-moving clutter using a single SAR array. The radar receiver converts the radar returns into digital radar returns and motion compensates the digital radar returns with respect to a reference, then applies further phase compensation to obtain an...

20060109163 - Autofocus method based on successive parameter adjustments for contrast optimization: A phase correction for autofocus is iteratively computed and applied to the initial synthetic aperture image using an inner loop, a mid loop and an outer loop. The phase correction is expressed using an orthogonal polynomial having a plurality n consecutive terms an, a2 denoting a quadratic term, and aN...

20060109164 - Efficient autofocus method for swath sar: A moving radar generates a search mode synthetic aperture image of a patch from periodic pulse returns reflected from the patch. The patch is imaged from radar returns derived from two or more overlapping arrays. A strong scatterer is located within each array, then the data from each array is...

20060109165 - Efficient stripmap sar processing for the implementation of autofocus and missing pulse restoration: A moving radar generates a search mode synthetic aperture image of a patch from a sequence of periodic pulse returns having one or more missing pulses. An azimuth and range interpolation generates an interpolated sequence having samples oriented in range and azimuth frequency with uniform spacing. Range compression is performed...

20060109166 - tactical aircraft check algorithm, system and method: A method of generating aircraft tactical alerts includes receiving track positions for two aircraft; receiving trajectories and static conformance bounds for the two aircraft; receiving current position for the two aircraft; generating tactical check segments and variable conformance bounds for the two aircraft based on the current position, the static...

20060109167 - Method and device for determining at least one cue of vertical position of an aircraft: A method and device for determining a vertical position cue of an aircraft while landing in the presence of a lateral alignment beam, which is emitted from the ground and provides an indication of the aircraft's lateral alignment with respect to a landing strip, may include detecting the lateral alignment...

20060109169 - Method for measuring distances and speeds of several objects by means of an fmcw radar: A method for measuring distance and velocity at a plurality of objects using FMCW radar, in which measurements are repeated cyclically using at least two different frequency ramps, in each measurement, the transmitted signal is mixed with the received signal, and the spectrum of the mixed signal is recorded, in...

20060109168 - Radar: A radar can detect target azimuths located outside and adjacent to a scanning angular range of a beam determining changes in received signal strength (a signal-strength profile) in the azimuthal direction as a function of a beam azimuth in a predetermined scanning angular range, and estimating the target azimuth causing...

20060109170 - Method and device for the adaptive regulation of power: A method and a device for adaptively controlling power in a radar device having a radar transmitter and a radar receiver are provided, in particular for applications in vehicles. The radar signals are emitted, and radar signals reflected off of target objects are received and checked for irregularities. The transmitting...

20060109171 - Methods and devices for determining the linearity of signals: The time it takes to determine whether a signal is a linear or non-linear frequency modulated (FM) signal is significantly reduced by continuously updating upper and lower frequency-related bounds (e.g., slopes) used in determining whether a signal is a linear or non-linear FM signal in real-time. The techniques provided by...

20060109172 - System and method for estimating the azimuth pointing angle of a moving monopulse antenna: An invention is provided for determining the azimuth pointing angle of a moving monopulse antenna. Pulses of energy are broadcast at the surface of a planetary body. Reflected signals are received from the surface of the planetary body using a plurality of feeds. A monopulse ratio is then calculated based...

20060109173 - Adaptive ground clutter cancellation: The present invention refers to an airborne radar device (1) comprising at least two antennas (2, 3) and clutter suppressing means (4). The radar device is arranged, via the antennas (2, 3) to send out radar pulses focused in main lobes (5) and the antennas are arranged to receive reflecting...

20060109174 - System and method for microwave imaging using programmable transmission array: A microwave imaging system uses microwave radiation provided by a microwave source to image targets. The system includes an array of antenna elements that are capable of being programmed with a respective transmission coefficient to direct the microwave illumination from the microwave source toward a position on the target. The...

20060103567 - Transmitting unit: A transmitting unit has a transmitter for transmitting signals of coded information about a position close to the unit in a space substantially unreachable by a satellite-based navigating system so as to provide a receiver arranged on a moving object present in said space with this position information for determining...

20060103568 - Systems and methods for wirelessly determining vehicle identification, registration, compliance status and location: A radar unit as a Challenger communicates with ref tag-enabled media (e.g., registration stickers, licensed plates, physical VIN tags) associated with motor vehicles to obtain vehicle-related data, e.g., vehicle identification numbers, states registration status, vehicle inspection status, insurance expiration, amber alert status, license tag/plate information and additional features are a...

20060103569 - Self-protecting device for an object: An object self-protection apparatus (12) having a monitoring device (14) which is fixed with respect to the object and a launch container (18), in particular for fragmentation projectiles, which has a target-tracking radar device (20) for the approach movement of a missile (22) which is to be defended against. The...

20060103570 - Methods and systems for controlling a height of munition detonation: A unit is described that is configured to control detonation of a munition such that the munition is detonated at a desired altitude. The unit includes a radar transmitter, a radar receiver that includes a radar range gate, and a sequencer. The sequencer is configured to receive a detonation altitude...

20060103571 - Fm-cw radar system: In an FM-CW radar system, a frequency modulating said modulating wave output from said modulating signal generator has a frequency variation skew with respect to a time axis (modulation skew), and the radar system includes a means for varying the modulation skew by controlling the modulation frequency amplitude or modulation...

20060103572 - Multipath height finding method:

20060103573 - Frequency error tracking in satellite positioning system receivers: A method in a satellite positioning system (SPS) receiver 100 including acquiring a plurality of at least two SPS signals, estimating frequency error for each of the plurality of SPS signals, and compensating for the frequency error of each of the plurality of SPS signal based on the estimated frequency...

20060103574 - Satellite positioning system receiver time determination in minimum satellite coverage: A method in a satellite positioning system receiver, including acquiring (210) a set of satellite positioning system satellites, determining (220) satellite subset time based on over-determined position solutions for at least two different subsets of the satellites acquired, determining (230) satellite time from at least two satellite subset times, computing...

20060103575 - Method and system for positioning signal acquisition assistance window evaluation: A system and method examines the quality of a positioning signal acquisition assistance window of an assisted position location system. The fit of acquisition assistance windows is examined using a posteriori knowledge of specific, or hypothetical, position measurements from a mobile station. A base station almanac manager compares mobile station...

20060097904 - System and method for detection of emitter signals using multiple intercept rules: A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. A rule-based system is provided for determining how emitters should be detected by a detection system. Rules may be used to prioritize certain emitters with...

20060097905 - Apparatus for collecting ground radar data with polarization information: The present invention concerns an apparatus for collecting ground radar data with polarization information comprising a main body exhibiting structure for moving the apparatus along the ground, a part that rotates in relation to the main body supporting a pair of antennas of transmitter and receiver type, a power source...

20060097906 - Radar-transceiver for microwave and millimetre applications: This invention concerns a transceiver module (send/receive module) for microwaves and millimeter wave applications or associated module platform concepts for interconnecting partial modules to make an overall module, which is particularly suitable for mass production. The transceiver module contains a) one or more individual electronic components, which in particular comprise...

20060097907 - Method for determining types of precipitation in the atmosphere: A method for determination of precipitation types in the atmosphere is described, wherein an output signal, in particular a radar signal, having a transmitting frequency spectrum is transmitted, reflection signals formed by reflection of the output signals at precipitation particles at at least two atmospheric levels and having a reflection...

20060097909 - Multistatic adaptive pulse compression method and system: A radar receiver system includes a receiver, a processor, and a detector. The processor is programmed with a Multistatic Adaptive Pulse Compression (MAPC) algorithm for estimating adaptively a pulse compression filter, for each range cell of a plurality of range cells, and for each of a plurality of radar return...

20060097908 - Radar pulse compression repair: A radar pulse compression repair (RPCR) system includes a receiver for receiving a radar return signal, a matched filter for applying matched filtering to the radar return signal to generate a matched filter output, a processor programmed for applying Radar Pulse Compression Repair (RPCR) to the matched filter output to...

20060097910 - Process for tracking vehicles: The invention is process for tracking a moving targeted vehicle from a remote sensor platform comprising the steps of 1) tracking the targeted vehicle and periodically recording its radar signature until its identity becomes ambiguous, 2) tracking the target after it has left its ambiguous state and periodically recording its...

20060097912 - High frequency antenna device and method of manufacturing the same, hf antenna printed circuit board for hf antenna device, and transmitting and receiving device using hf antenna device: A high frequency antenna device is provided which includes: a high frequency antenna wiring board having a film antenna formed on one surface of a dielectric substrate made up of multiple, laminated ceramic layers and a high frequency circuit formed on the other surface of the dielectric substrate to generate...

20060097911 - Wire positioning and mechanical attachment for a radio-frequency indentification device: An antenna terminal positioning structure for a radio-frequency identification device having terminal pads mounted to one of its surface is obtained providing a wall assembly mounted to the device surface, the wall assembly having at least one wall surface extending from the device surface so as to be aligned with...

20060097913 - Information management and control system: A system 10 which is adapted to receive global positioning signals 14 from a satellite assembly 12 and which determines, displays, and selectively disseminates that error associated with the received signals to selected users at selected locations and at selected times. The system 10 also provides several other applications, including...

20060097914 - Gps receiver having a phase lock loop hold off: A global navigation satellite system (GNSS) receiver using phase lock loops for strong GNSS signals and (AFC) loops for weak GNSS signals on a satellite-by-satellite basis. The phase lock loops or the AFC loops associated with particular GNSS satellites generate frequency feedback adjustments for tracking the carrier frequencies of the...

20060097915 - Method for the acquisition of a radio-navigation signal by satellite: The invention relates to a method of acquisition of radio signals transmitted in particular by a satellite-based positioning system having a subcarrier, the acquisition of the signals being performed by a receiver having a channel for carrier correlation in-phase and quadrature, between the signal received and two respective in-phase and...

20060092072 - Self-locating devices via highly directional rfid tags in controlled location: A monitored area is provided multiple RFID tags placed at defined coordinates/locations throughout the extended area. These RFID tags respond to receipt of a RF signal by transmitting/broadcasting their unique identifier (ID) within the specific area in which the tag is located. A device, whose location within the monitored area...

20060092073 - Sensor arrangement and method for regulating the distance of motor vehicles: A sensor system on motor vehicles for locating objects in front of the vehicle, wherein at least two sensors, each having a locating depth of at least 50 m, are arranged in such a way on both sides of longitudinal center axis of the vehicle that their locating angular ranges...

20060092074 - Process for sensor resources management: The subject process accepts the data from a kinematic tracker and maps them to fuzzy set conditions. Then using a multitude of defined membership functions and fuzzy logic gates, generates sensor mode control rules. It does this for every track and each sensor. The Rule with the best score becomes...

20060092075 - Man-portable counter mortar radar system: The present invention is a man-portable counter-mortar radar (MCMR) radar system that detects and tracks enemy mortar projectiles in flight and calculates their point of origin (launch point) to enable and direct countermeasures against the mortar and its personnel. In addition, MCMR may also perform air defense surveillance by detecting...