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"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 8154438 | Registration of latitude/longitude coordinates using range detection sensors and digital nautical charts The present invention can find the exact location anywhere in the nautical world (latitude/longitude coordinates) by correlating or matching radar returns with maps produced by a digital nautical chart called a Chart Server, because each pixel location on the Chart ... | 04/10/2012 |
| 7965227 | Aircraft tracking using low cost tagging as a discriminator A simplified multilateration and ADS-B Surveillance System is used, to perform tagging for the FAA Low Cost Ground Surveillance program. This system may also be used as the foundation for a full multilateration system, if a customer wants to upgrade. The present inv... | 06/21/2011 |
| 7782248 | UWB distance measurement system and method of driving the same The present invention relates to a UWB distance measurement system and method of driving the system. The system includes a reception antenna for receiving a signal, which is output from a transmission unit, is reflected from a target and is incident on the reception... | 08/24/2010 |
| 7564400 | Spread spectrum radar apparatus It is an object of the present invention to prevent the sensitivity of radar apparatus from falling. A spread spectrum radar apparatus which detects an object, includes a carrier wave oscillator which generates a carrier wave, transmission unit which transmits a spr... | 07/21/2009 |
| 7525478 | Radar signal processor A radar signal processor is disclosed having an observation mechanism for receiving a reflected wave from a target and for outputting a predetermined observation signal. The processor extracts a distance component corresponding to a distance from each observation si... | 04/28/2009 |
| 7439904 | Ranging system and method thereof A ranging system and ranging method are provided. The ranging system includes a transmission signal generator which generates a transmission signal, which is transmitted from a transmission device to a reception device; a correction signal generator which converts t... | 10/21/2008 |
| 7420501 | Method and system for correlating radar position data with target identification data, and determining target position using round trip delay data A method and system for using a single transceiver to correlate radar position data with target identification data. Two transceivers, operating in round trip delay mode, can be used to provide two possible positions for a given target when radar coverage is lost or... | 09/02/2008 |
| 7408499 | Generations of sequences of waveforms A sequence of waveforms is generated by producing a primary symbol sequence and, for each symbol within the sequence, substituting a randomly-selected waveform. The primary symbol sequence has a narrow autocorrelation function, and may be a train of pulses, with the... | 08/05/2008 |
| 7327307 | Radar system with adaptive waveform processing and methods for adaptively controlling the shape of a radar ambiguity function An adaptive waveform radar system transmits a selected waveform of a family of related waveforms and either phase shifts or bit shifts the radar return signal for correlating with the other waveforms of the family. In some embodiments, phase shifting may be performe... | 02/05/2008 |
| 7295154 | Vehicle obstacle warning radar A method for detecting an object using a transmitting antenna and an array of receiving antennas. The method comprises the step of transmitting a signal from the transmitting antenna. The magnitude and phase of a respective received signal at each of the receiving a... | 11/13/2007 |
| 7295147 | 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 angul... | 11/13/2007 |
| 7292179 | 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... | 11/06/2007 |
| 7283744 | Performance monitoring based on optical autocorrelation An optical performance monitor (OPM) adapted to (i) sample an autocorrelation function corresponding to an optical signal transmitted in an optical network and (ii) based on the sampling, characterize two or more impairments concurrently present in the optical signa... | 10/16/2007 |
| 7275431 | Vehicle mounted system for detecting objects A method for object detection using vehicle-mounted sensors is provided, the sensing ranges of which sensors overlap at least partially. In this context, signals of at least two sensors having sensing ranges with essentially identical coverage, and additional signal... | 10/02/2007 |
| 7268723 | System and method for locating targets using measurements from a space based radar A system and method for determining a position of a target within an acceptable tolerance using an iterative approach. A airborne or space-based measuring device is used to measure an estimated position of the target. The information from the measuring device is use... | 09/11/2007 |
| 7259713 | Ranging systems A continuous wave ranging system, comprising a modulator 2 for modulating an r.f. carrier wave in accordance with a pseudo random code, a transmitting antenna 5 for radiating the modulated signal towards a target, a receiving antenna 6 and recei... | 08/21/2007 |
| 7250900 | System and method for sidelobe reduction using detect-and-subtract techniques A radar system and method for detecting targets using pulse-compressed signals is disclosed. In one application, the systems and methods can be used to detect one or more relatively small targets whose pulse-compressed signals are masked by the time-sidelobes of a l... | 07/31/2007 |
| 7248206 | Instantaneous multisensor angular bias autoregistration Unknown alignment biases of sensors of a tracking system are estimated by an iterative Kalman filter method. Current measurements are corrected for known alignment errors and previously estimated alignment biases. The filter time reference is updated to produce esti... | 07/24/2007 |
| 7248207 | 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 expansio... | 07/24/2007 |
| 7242344 | Radar apparatus and radar signal processing method A radar apparatus calculates distances or relative speeds of a target according to a plurality of formulae. An predicted distance calculation formula is obtained at the following observation from the distances or the relative speeds thus calculated. A determination ... | 07/10/2007 |
| 7236124 | Radar system and method for reducing clutter in a high-clutter environment A radar system transmits an environment-sensing pulse and processing circuitry time-reverses an order of radar return samples and generates a convolution matrix from the radar return samples resulting from a transmission of the environment-sensing pulse. The process... | 06/26/2007 |
| 7211980 | Robotic follow system and method Robot platforms, methods, and computer media are disclosed. The robot platform includes perceptors, locomotors, and a system controller, which executes instructions for a robot to follow a target in its environment. The method includes receiving a target bearing and... | 05/01/2007 |
| 7199751 | Radar equipment A radar equipment of the present invention amplifies a reception signal with feedback based on the delay amount obtained from the correlation detection result. Accordingly, it becomes possible to maintain the reception signal (demodulated signal) level to a proper l... | 04/03/2007 |
| 7196657 | Radar system using RF noise A radar system that utilizes predetermined, pseudorandom, or random waveforms that may be substantially matched to the impulse response of the radar and any surrounding clutter such that the signal-to-clutter ratio may be optimized and/or such that specific targets ... | 03/27/2007 |
| 7183969 | System and technique for calibrating radar arrays A system and technique for calibrating a plurality of radars provides a set of simultaneous equations derived from monostatic echo returns from a plurality of targets. A solution of the simultaneous equations provides relative position calibration factors and time d... | 02/27/2007 |
| 7170408 | System and method for information assimilation and functionality control based on positioning information obtained by impulse radio means A system and method for information assimilation and functionality control based on positioning information obtained by impulse radio techniques, which utilizes the position information and communication abilities inherent in impulse radio technology to correlate po... | 01/30/2007 |
| 7158077 | Radar device and method for suppressing interference with a radar device A radar device is described having an arrangement to generate a carrier signal having a carrier frequency fT, an arrangement to generate pulses having a pulse repetition rate fPW, an arrangement to split the carrier signal between a transmissio... | 01/02/2007 |
| 7154321 | Digital delay line A digital delay line including a first feedback delay line having a first number of interlinked first delay elements, at least one second feedback counter having a second number of second interlinked counting elements, the counting elements being clocked by one of t... | 12/26/2006 |
| 7151478 | Pseudo-orthogonal waveforms radar system, quadratic polyphase waveforms radar, and methods for locating targets In some pseudo-orthogonal waveform embodiments, a radar system transmits pseudo-orthogonal waveforms and performs multiple correlations on a combined single receiver channel signal. In some quadratic polyphase waveform embodiments, a radar system may simultaneously ... | 12/19/2006 |
| 7151476 | Radar system having a beamless emission signature A radar system having a beamless emission signature is described. In one implementation, the radar system includes a transmission system and a receiver system. The transmission system is configured to transmit a pattern comprising a plurality of radar signals having... | 12/19/2006 |
| 7151483 | System and method for concurrent operation of multiple radar or active sonar systems on a common frequency A system and corresponding method for the concurrent operation of multiple radar systems on a common frequency and in the same geographical area includes a waveform generator that specifies certain operating parameters for the transmitted radar pulses. In a first in... | 12/19/2006 |
| 7148841 | Radar device A radar device includes a code generator, a transmission section, a reception section, a delay section, a despreading process section, a correlation value detection section, a target detection section, an estimation section, an acquisition section, and a correction ... | 12/12/2006 |
| 7149148 | Localization of high speed vehicles using continuous transmit waves The selection of multiple, suitably designed, demodulation reference signals can enable the measurement of a vehicle's speed using continuously transmitted frequency modulated (CTFM) signals. The unique solution of vehicle speed can be used to resolve the range Dopp... | 12/12/2006 |
| 7126526 | Phased null radar A method for reducing the interference between a source transmitting pulses and equipments having nominal bandwidths which are outside the nominal bandwidth of the transmitted pulses, but which respond to sideband energy of the pulses. Phase perturbations are applie... | 10/24/2006 |
| 7119738 | Object location system and method using RFID A system and method is provided for locating objects using RFID tags. The system and method uses an RFID reader and a distance calculator to efficiently and accurately determine the location of objects that include an RFID tag. The RFID reader transmits a plurality ... | 10/10/2006 |
| 7064703 | Methods and apparatus for randomly modulating radar altimeters A method for randomly phase modulating a radar altimeter is described. The method includes momentarily applying a signal from a random noise source to an amplifier, applying an output of the amplifier to a voltage controlled oscillator (VCO), applying an output of t... | 06/20/2006 |
| 7062305 | Location identifying apparatus and method of identifying the location of a user In a survey system involving either differential global positioning (DGPS) or robotic total station (RTS) systems, the mobile station includes the radio system in the surveyor pole and either connects the laser reflector system or the GPS to the top of the pole or p... | 06/13/2006 |
| 7034744 | Method for processing output or base signals from a device for determining a distance of an object To provide a method of processing output or base signals (S), in particular intermediate frequency output or base signals, from at least one device, in particular at least one radar device, for determining a distance (d), in particular a small distance on the order ... | 04/25/2006 |
| 7025724 | Wavelet depulsing of ultrasound echo sequences Methods and associated apparatuses for imaging a target. An echo sequence image of the target is acquired and a log spectrum of at least a portion of the echo sequence image is computed. A point spread function is estimated by one of two methods. According to the fi... | 04/11/2006 |
| 7023377 | Noise modulated remote distance measurement The invention relates to remote distance measurement by means of a transmitted noise modulated probing signal (E), whereby at least one of a distance (Y(t)) and a velocity (V(t)) in relation to a signal transceiver (200) is determined. The probing of signal (... | 04/04/2006 |
