序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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61 | SEA CLUTTER IDENTIFICATION WITH A LASER SENSOR FOR DETECTING A DISTANT SEABORNE TARGET | US13063354 | 2009-09-10 | US20110164240A1 | 2011-07-07 | Moshe Oron; Doron Nevo; Hanna Inbar |
There is provided a system for detecting distant seaborne objects by an airborne vehicle, including a seeker head having an axis in the direction of flight, a sensor mounted on the seeker's head, the sensor being operative to transmit towards the sea surface a laser radiation beam of selected wavelength and to receive from the sea water surface radiation reflected from the sea water surface and from a seaborne object, and a computing unit for differentiating between the reflection received from the sea water surface and from the seaborne object. A method for detecting distant seaborne objects by an airborne vehicle is also provided. | ||||||
62 | Navigation through reception of a remote position fix via data link | US12074055 | 2008-02-29 | US07953524B1 | 2011-05-31 | Brian R. Roggendorf |
A method of navigating a mobile platform. A reflectable electronic signal is transmitted. A reflection of the reflectable signal is received. A position of the mobile platform is determined based upon the reflection of the reflectable signal. A platform position signal is transmitted to the mobile platform. The platform position signal provides the mobile platform the determined position of the mobile platform. The mobile platform is navigated based upon the platform position signal. | ||||||
63 | Frequency adjusting arrangement | US05879642 | 1978-02-16 | US07696460B1 | 2010-04-13 | George R. Spencer; James Williamson; Paul G. Crete |
A circuit for compensating for frequency modulation on a radar signal is disclosed. The disclosed circuit includes an adaptive narrow band filter in the feedback path of a phase-locked detector, such filter having a bandwidth which is narrower than the frequency range of the signal being compensated, and means for detecting the amplitude of such signal.The invention herein described was made in the course of, or under a contract or subcontract thereunder, with the Department of Defense. | ||||||
64 | COMPACT ACTIVE PHASED ARRAY ANTENNA FOR RADARS | US12185092 | 2008-08-03 | US20100052975A1 | 2010-03-04 | Alberto MILANO; Hillel WEINSTEIN |
A radar system, including: a compact, active phased array antenna for transmission and reception of a focused radiation beam, circuits for providing signals to produce or detect a radiation beam by the phased array antenna and to control or detect the direction of the radiation beam, and wherein the radar is adapted to be mounted on a missile and scan a selected area proceeding the direction of motion of the missile. | ||||||
65 | Airborne Look-Down Doppler Radar Tracking of Hovering Helicopters using Rotor Features | US11423590 | 2006-06-12 | US20070285303A1 | 2007-12-13 | Bernard P. Radza; Joseph Henning; Sunny Ali; John Mincer; Randal Walters |
A system and method is presented for detecting and classifying slow-moving and hovering helicopters from a missile's took-down Doppler radar that is compatible with the existing base of Doppler radars. This approach uses definable attributes of a helicopter rotor assembly and its extended Doppler rotor return to differentiate “rotor samples” from other samples (steps 123, 125), extract features such as bandwidth, activity, angle, and shape from the rotor samples (step 127), and classify a potential target as a helicopter or other based on the extracted rotor features and the known attributes of the helicopter rotor assembly (step 129). A target report including a classification target, range, range-rate, and angle of the extended rotor return is suitably passed to a tracking processor (step 121). | ||||||
66 | System and method for detecting and estimating the direction of near-stationary targets in monostatic clutter using phase information | US10116438 | 2002-04-04 | US20030189512A1 | 2003-10-09 | Hai-Wai Chen; Harry A. Schmitt; George T. David; Dennis C. Braunreiter; Alphonso A. Samuel; Judith L. David |
A system and method for detecting a target. The inventive method includes the steps of receiving a complex return signal of an electromagnetic pulse having a real and an imaginary component; extracting from the imaginary component information representative of the phase component of the return signal; and utilizing the phase component to detect the target. Specifically, the phase components are those found from the complex range-Doppler map. More specific embodiments further include the steps of determining a power spectral density of the phase component of the return signal; performing a cross-correlation of power spectral density of the phase component of the return signal between different antenna-subarray (quadrant channels); and averaging the cross-correlated power spectral density of the low frequency components. In an alternative embodiment, the cross-correlation is performed on the phase component of the range-Doppler map directly. This signal can then be averaged to potentially provide improved detection of targets. The cross-correlations of the power spectral densities derived from the complex valued range-Doppler map are then used to detect the target in the presence of monostatic clutter. An additional teaching relates to a utilization of the phase component to ascertain a direction of the target and thereby effect target tracking as well as target detection. | ||||||
67 | Device for the unambiguous measurement of the roll of a projectile and application to the correction of the path of a projectile | US09729837 | 2000-12-06 | US20010004247A1 | 2001-06-21 | Sylvie Fleury; Louis Beaulieu |
A device for the unambiguous measurement of the angle of roll of a projectile, comprises at least a radar equipped with means of processing and sending a signal to the casing of the projectile in at least one direction of incident polarization; a set of parallel grooves made on the casing, the depth of which is modulated dissymmetrically with respect to the axis of symmetry of the projectile; the axis of symmetry of the projectile not passing through the point of the antenna of the radar where the antenna beam is generated, the processing means analyzing, in reception, a signal back-scattered by the casing of the projectile, the signal being modulated as a function of the angle of roll of the projectile, the modulation having two maximum local values corresponding to two angular roll positions of the projectile such that the polarization {right arrow over (E)} is parallel to the grooves, the processing means removing the 180null ambiguity by comparing the levels of the local maximum values. The device can be applied especially to the correction of the paths of projectiles fired by a gun and when the correction requires knowledge of the roll position of the projectiles. | ||||||
68 | PROJECTILE, AND SYSTEM AND METHOD FOR STEERING A PROJECTILE | EP16859203.8 | 2016-10-25 | EP3368856A1 | 2018-09-05 | LOTAN, Asher |
A projectile is disclosed, having: a longitudinal axis, a steering assembly, a shell body, an attitude control system, a despin module, an electromagnetic receiver and/or emitter system, and a controller. The attitude control system includes a ram air inlet in selective open fluid communication with an exhaust assembly, which includes a plurality of exhaust outlets to selectively generate each of a plurality of thrust jets from a ram air inflow provided by the ram air inlet, each thrust jet being selectively controllable via the controller. The despin module is configured for selectively de-spinning the steering assembly with respect to the shell body about the longitudinal axis. The electromagnetic receiver and/or emitter system is configured for receiving and/or emitting electromagnetic energy, and for cooperating with the controller for operating the exhaust assembly to thereby selectively provide steering control moments. Systems and methods for steering the projectile are also disclosed. | ||||||
69 | VERFAHREN ZUM STEUERN EINES FLUGKÖRPERS ZU EINEM FLIEGENDEN ZIEL | EP17000339.6 | 2017-03-06 | EP3220094A1 | 2017-09-20 | Kuhn, Thomas |
Die Erfindung geht aus von einem Verfahren zum Steuern eines Flugkörpers (2) zu einem fliegenden Ziel (26). |
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70 | AIRBORNE LOOK-DOWN DOPPLER RADAR TRACKING OF HOVERING HELICOPTERS USING ROTOR FEATURES | EP07873859.8 | 2007-06-11 | EP2033011B1 | 2017-02-08 | RADZA, Bernard; HENNING, Joseph; ALI, Sunny; MINCER, John; WALTERS, Randal |
71 | Procédé d'amélioration des performances d'un radar en présence d'échos rétrodiffusés diffus | EP11195060.6 | 2011-12-21 | EP2472285B1 | 2013-09-11 | Boutherin, Pierre; Fages, PIERRE; Olliver, Franck |
72 | Photonic-assisted digital radar system | EP12164336.5 | 2012-04-16 | EP2511731A1 | 2012-10-17 | Pierno, Luigi; Dispenza, Massimiliano; Gatta, Alessandro; Fiorello, Annamaria; Secchi, Alberto; Ricci, Massimo |
A photonic-assisted digital radar system (1) comprising an active electronically-scanned antenna (2); a transmitting section (3) connected to the antenna (2) and configured to generate and transmit RF signals (SF1) via the antenna (2); and a receiving section (4) connected to the antenna (2) and configured to receive and process electric analog signals (SE2) associated to the RF signals (SF2) received from the antenna (2). The transmitting section (3) comprises a waveform generator (5) configured to generate a modulating signal in the form of a pulsed waveform (SWG); and a modulator (6) configured to receive a transmission carrier (STALO) and the modulating signal (SWG) and to modulate the transmission carrier (STALO) by means of the modulating signal (SWG), thereby generating a radiofrequency signal (SF1) to be transmitted via the antenna (2). The receiving section (4) comprises photonic-assisted analog-to-digital converting means (8) configured to convert electric analog signals (SE2) into electric digital signals (SED); and digital signal processing means (9) configured to receive and process the electric digital signals (SED). The photonic-assisted analog-to-digital converting means (8) comprises a mode-locked laser device (11) configured to generate an optical clock signal (SS); and electronic analog-to-digital converting means (13); the electronic analog-to-digital converter means (13), the waveform generator (5), the modulator (6) and the digital signal processing means (9) being configured to operate based on respective electric clock signals (CK3),(CK1),(CK2),(CK4) generated based on the optical clock signal (SS). |
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73 | AIRBORNE LOOK-DOWN DOPPLER RADAR TRACKING OF HOVERING HELICOPTERS USING ROTOR FEATURES | EP07873859.8 | 2007-06-11 | EP2033011A2 | 2009-03-11 | RADZA, Bernard; HENNING, Joseph; ALI, Sunny; MINCER, John; WALTERS, Randal |
A system and method is presented for detecting and classifying slow-moving and hovering helicopters from a missile's look-down Doppler radar that is compatible with the existing base of Doppler radars. This approach uses definable attributes of a helicopter rotor assembly and its extended Doppler rotor return to differentiate 'rotor samples' from other samples (steps 123, 125), extract features such as bandwidth, activity, angle, and shape from the rotor samples (step 127), and classify a potential target as a helicopter or other based on the extracted rotor features and the known attributes of the helicopter rotor assembly (step 129). A target report including a classification target, range, range-rate, and angle of the extended rotor return is suitably passed to a tracking processor (step 121). | ||||||
74 | Apparatus and method for estimating altitude | EP06114633.8 | 2006-05-29 | EP1862756B1 | 2008-12-17 | Tullsson, Bert-Eric |
75 | APPARATUS AND METHOD FOR RAPID DETECTION OF OBJECTS WITH TIME DOMAIN IMPULSIVE SIGNALS | EP04785729.7 | 2004-03-12 | EP1601990B1 | 2008-12-10 | MCLEMORE, Donald P., c/o ITT AES |
76 | Apparatus and method for estimating altitude | EP06114633.8 | 2006-05-29 | EP1862756A1 | 2007-12-05 | Tullsson, Bert-Eric |
A device for providing an altitude estimate Best in a missile, comprises Thus an altitude estimate may be provided in a military tactical missile that does not have an altimeter. |
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77 | Verfahren und Vorrichtung zur Detektion von sich nähernden Objekten | EP05023123.2 | 2005-10-24 | EP1653249A1 | 2006-05-03 | Mecklenbrauck, Wilhelm, Dr.; Weiss, Georg |
Bei einem Verfahren zur Detektion von sich nähernden Objekten, bei dem mit wenigstens einem Sensor vom sich nähernden Objekt reflektierte elektromagnetische Strahlung empfangen und ausgewertet wird, wird vorgeschlagen, dass die von einem Radar-Sender auf das Objekt gerichtete Strahlung erfasst wird, dass die vom Objekt reflektierte Strahlung desselben Senders identifiziert und mit Hilfe der aufgrund des Dopplereffektes auftretenden Frequenzverschiebung Messwerte zur Peilmessung bzw. Zielrichtungsmessung gewonnen werden. Das Verfahren und der vorgeschlagene Sensor erlauben es, auf passive Weise jede Art von sich nähernden Objekten, auch manövrierende Objekte, bei jedem Wetter aufzufassen. Er nutzt dazu die Strahlung von kooperativen oder nichtkooperativen Sendern aus, die von den sich nähernden Objekten reflektiert wird. |
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78 | APPARATUS AND METHOD FOR RAPID DETECTION OF OBJECTS WITH TIME DOMAIN IMPULSIVE SIGNALS | EP04785729.7 | 2004-03-12 | EP1601990A2 | 2005-12-07 | MCLEMORE, Donald P.,c/o ITT AES |
A method and system are disclosed for detecting objects of interest in a target area using ultra wide band (UWB) RF signals. A transmitter and antenna array generate ultra wide band RF impulsive signals that are used to probe a target area that may include an object of interest. An antenna and a signal processor receive return signals from the target area and process the return signal to generate a set of coordinates. The coordinates of the processed return signals are compared to coordinates of known objects in a pre-existing database to determine whether there is a match between the return signal and a known object. When there is an indication of a match, the existence of the known object is displayed to an operator of the system. | ||||||
79 | Dispositif de mesure non ambigue du roulis d'un projectile, et application à la correction de trajectoire d'un projectile. | EP00403378.3 | 2000-12-01 | EP1108970A1 | 2001-06-20 | Fleury, Sylvie; Beaulieu, Louis |
La présente invention concerne un dispositif de mesure non ambiguë du roulis d'un projectile. Le dispositif comporte au moins :
L'invention s'applique notamment pour la correction de trajectoires de projectiles tirés par un canon, et où la correction nécessite de connaître la position en roulis des projectiles. |
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80 | DETERRENT FOR UNMANNED AERIAL SYSTEMS | PCT/US2015059698 | 2015-11-09 | WO2016122739A3 | 2016-10-13 | PARKER DWAINE A; STERN DAMON E; PIERCE LAWRENCE S |
A system (100) for providing integrated detection and countermeasures against unmanned aerial vehicles(44) include a detecting element (103), a location determining element (104) and an interdiction element (102). The detecting element detects an unmanned aerial vehicle in flight in the region of, or approaching, a property, place, event or very important person. The location determining element determines the exact location of the unmanned aerial vehicle. The interdiction element can either direct the unmanned aerial vehicle away from the property, place, event or very important person in a non-destructive manner, or can cause disable the unmanned aerial vehicle in a destructive manner. |