序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
21 Apparatus and method for rapid detection of objects with time domain impulsive signals US10385629 2003-03-12 US06806821B2 2004-10-19 Donald P. McLemore
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.
22 APPARATUS AND METHOD FOR RAPID DETECTION OF OBJECTS WITH TIME DOMAIN IMPULSIVE SIGNALS US10385629 2003-03-12 US20040178942A1 2004-09-16 Donald P. McLemore
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.
23 System and method for detecting and estimating the direction of near-stationary targets in monostatic clutter using phase information US10116438 2002-04-04 US06750804B2 2004-06-15 Hai-Wai Chen; Harry A. Schmitt; George T. David; Dennis C. Braunreiter; Alphonso A. Samuel
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.
24 High range resolution radar system US605341 1996-02-09 US5629705A 1997-05-13 Aaron Spettel; Anthony J. Sarantakis
A radar system is provided to track radar energy reflected by a point on the target different from the centroid of a target's radar reflected energy. The radar system includes a target angle/range tracking system and a target energy monitoring/range tracking system. During a first mode of operation, the target angle/range tracking system tracks the centroid of the target's reflected energy; and, the target energy monitoring/range tracking system monitors the strength of energy reflected from points, or regions along the body of the target different from the centroid reflected energy producing region. When the signal strength to noise ratio (i.e., S/N ratio) from a reflection at one of the monitored points along the target exceeds a predetermined level indicating detection of a secondary reflector along the body of the target, a second operation mode commences. During the second operating mode, the target angle/range tracking system tracks the energy from the secondary reflector and the target energy monitoring/range tracking system monitors energy reflected from points along the target's body different from the secondary reflector.
25 Missile seeker and guidance method US14760546 2014-01-10 US10072908B2 2018-09-11 Nigel Stansfield
In a method of guiding a missile in flight to a target (FIG. 1), the location of the missile and the range to the target are measured at a plurality of moments during the flight of the missile (step 10). The location of the target is calculated from the measured ranges and the measured missile locations (step 20). A required velocity vector angle is calculated from the calculated location of the target and a guidance law (step 30). A lateral acceleration required to provide the missile with a velocity oriented to the target at the required velocity vector angle is calculated for the missile (step 40). The missile is caused to accelerate with the calculated lateral acceleration, so that the missile to follows a trajectory according to the guidance law (step 50).
26 FLIGHT-PATH DETERMINATION DEVICE AND FLIGHT-PATH DETERMINATION METHOD US15852697 2017-12-22 US20180202832A1 2018-07-19 BERND NAGELRAUF
A flight-path determination device for determining a flight path of a flying object has a position determination apparatus to detect a position of the flying object, an alignment apparatus that to verify whether the position of the flying object is within one specified approach path of a number of specified approach paths, and a path determination apparatus to output the relevant approach path as the flight path of the flying object if the position of the flying object is within one of the specified approach paths.
27 METHODS AND APPARATUSES FOR ENGAGEMENT MANAGEMENT OF AERIAL THREATS US15355839 2016-11-18 US20170300047A1 2017-10-19 James Kolanek; Behshad Baseghi; David Sharpin; Anthony Visco; Falin Shieh
Embodiments include engagement management systems and methods for managing engagement with aerial threats. Such systems include radar modules and detect aerial threats within a threat range of a base location. The systems also track intercept vehicles and control flight paths and detonation capabilities of the intercept vehicles. The systems are capable of communication between multiple engagement management systems and coordinated control of multiple intercept vehicles.
28 METHOD FOR STEERING A MISSILE TOWARDS A FLYING TARGET US15459217 2017-03-15 US20170268852A1 2017-09-21 THOMAS KUHN
A method steers a missile towards a flying target. In order to permit precise flight to the target even under poor visibility conditions owing to the weather, a radar which is remote from the missile detects the target and transmits data relating to a first location area of the target to the missile. The missile determines, from the data of its own missile radar, a second location area of the target, processes both location areas to form a target area and flies to the target area.
29 Methods and apparatuses for engagement management of aerial threats US13839176 2013-03-15 US09501055B2 2016-11-22 James Kolanek; Behshad Baseghi; David Sharpin; Anthony Visco; Falin Shieh
Embodiments include engagement management systems and methods for managing engagement with aerial threats. Such systems include radar modules and detect aerial threats within a threat range of a base location. The systems also track intercept vehicles and control flight paths and detonation capabilities of the intercept vehicles. The systems are capable of communication between multiple engagement management systems and coordinated control of multiple intercept vehicles.
30 APPARATUS AND METHOD FOR CONVERTING MULTI-CHANNEL TRACKING INFORMATION FOR INTEGRATED PROCESSING OF FLIGHT DATA US14550690 2014-11-21 US20160178743A1 2016-06-23 Dongsoo SEO; Jeongbu BAEK; Yongjae LEE
The present inventive concept relates to an apparatus and method for multiplexing tracking information output from a plurality of tracking radar systems that are operated upon testing the flight of guided weapons, converting the multiplexed tracking information into a single PCM stream signal, and processing the tracking information together with telemetry data in an integrated manner, thus enabling the tracking information to be simply and economically utilized for test control and measurement tasks. The apparatus for converting multi-channel tracking information for integrated processing of flight data, includes a signal receiver for receiving pieces of tracking information from tracking radar systems through a plurality of input channels, a programmable semiconductor for multiplexing the pieces of tracking information, and converting the multiplexed tracking information into a data stream-type Pulse Code Modulation (PCM) frame, and a line driver for outputting the PCM frame to another piece of equipment.
31 Missile tracking by GPS reflections US13113487 2011-05-23 US08610041B1 2013-12-17 Jonathan A. Boardman
A system for engaging hostile air or space threats with a defensive missile, where the defensive missile comprises an antenna for receiving global positioning system (GPS) signals. A global positioning system receiver is coupled to said antenna, for receiving global positioning system signals directly from global positioning system satellites and global positioning system signals reflected from the threat. A processing arrangement processes the direct and reflected global positioning system signals for determining the position and velocity of the threat. Vectoring controls are coupled to the processing arrangement, and are responsive to the location of the threat for directing the defensive missile toward the threat. In a particular embodiment, the antenna of the defensive missile is directionally controllable, and the defensive missile includes an antenna direction controller responsive to the processor for directing at least a beam of the antenna toward the threat.
32 Compact active phased array antenna for radars US12185092 2008-08-03 US07911373B2 2011-03-22 Hillel Weinstein Weinstein; Alberto Milano
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.
33 Radar tracking system US07075673 1987-06-26 US07741991B1 2010-06-22 Peter James MacBean
An angle tracking radar system particularly for a missile with a steerable antenna and gyros strapped down to the missile body—a ‘partially strapdown’ system. The body rate signals, body acceleration signals where provided, and target position signals are converted into an electronic reference frame which is controlled to align with the target sightline, the above body and target signals being employed to produce estimates of target direction, sightline rate and sightline acceleration for use in controlling the missile.
34 Radar-directed projectile US10215475 2002-04-15 US20050253017A1 2005-11-17 Knut Kongelbeck; Ada Mendelovicz
Disclosed is an autonomous radar guidance of an otherwise radar-directed projectile (RDP). The preferred embodiment uses an inexpensive radar receiver with an inexpensive slow wave antenna, placed internally in a gun projectile, and on the surface of the projectile, respectively. The receiver detects the angle and range of the target relative to the body coordinates of the projectile. The radar receiver operates as a bistatic radar apparatus with the primary illumination emanating from the fire control radar directing the fire of the gun. When integrated with an on-board trajectory correcting system, such as divert thrusters of miniature proportions, the projectile autonomously refines its otherwise ballistic trajectory to the target. The trajectory refinements produce improved kills per round, with the potential for reducing the ammunition expended and time-loading on the fire control system and its guns. An alternative embodiment, in addition to receiving the target-reflected fire control emissions, receives and processes the fire control radar emissions directly in order to enhance homing accuracy.
35 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 US06483455B2 2002-11-19 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 {overscore (E)} is parallel to the grooves, the processing means removing the 180° 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.
36 VERFAHREN ZUR POSITIONSBESTIMMUNG UND RADARSYSTEM EP17209899.8 2017-12-22 EP3376256A1 2018-09-19 Seebens, Achim

Ein Verfahren zur Positionsbestimmung eines mobilen Radarsystems umfasst die Schritte des Abtastens der Umgebung des mobilen Radarsystems von der tatsächlichen geographischen Position aus mit Radarstrahlen, des Erzeugens einer nach Azimut, Elevation und Entfernung aufgelösten Clutter-Map aus Echosignalen der zur Abtastung verwendeten Radarstrahlen, des Extrahierens eines lokalen Landschaftshorizontprofils aus der erzeugten Clutter-Map mit einer Sequenz aus 2-Tupeln mit Azimut- und Elevationswinkelwert, welcher die Grenzlinie zwischen Himmel und Erde markiert, des Vergleichens des lokalen Landschaftshorizontprofils mit einer Vielzahl von virtuellen Landschaftshorizontprofilen, welche durch Berechnung aus digitalen Geländemodellen der ungefähren Umgebung des mobilen Radarsystems ermittelt werden, und des Festlegens der tatsächlichen Position des mobilen Radarsystems als die demjenigen der Vielzahl von virtuellen Landschaftshorizontprofilen zugeordnete geographische Position, dessen Vergleich mit dem lokalen Landschaftshorizontprofil die höchste Korrelation aufweist.

37 DETERRENT FOR UNMANNED AERIAL SYSTEMS EP15864305.6 2015-11-09 EP3234633A2 2017-10-25 PARKER, Dwaine A.; STERN, Damon E.; PIERCE, Lawrence S.
A system for providing integrated detection and countermeasures against unmanned aerial vehicles include a detecting element, an location determining element and an interdiction element. 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.
38 Photonic-assisted digital radar system EP12164336.5 2012-04-16 EP2511731B1 2016-11-30 Pierno, Luigi; Dispenza, Massimiliano; Gatta, Alessandro; Fiorello, Annamaria; Secchi, Alberto; Ricci, Massimo
39 AIRBORNE LOOK-DOWN DOPPLER RADAR TRACKING OF HOVERING HELICOPTERS USING ROTOR FEATURES EP07873859 2007-06-11 EP2033011A4 2012-11-14 RADZA BERNARD; HENNING JOSEPH; ALI SUNNY; MINCER JOHN; WALTERS RANDAL
40 Procédé d'amélioration des performances d'un radar en présence d'échos rétrodiffusés diffus EP11195060.6 2011-12-21 EP2472285A1 2012-07-04 Boutherin, Pierre; Fages, PIERRE; Olliver, Franck

L'invention concerne un procédé de détection de cibles par un radar en présence d'échos rétrodiffusés diffus, les cibles étant désignées, selon une hypothèse de localisation des cibles a priori, en distance DDO avec un domaine d'imprécision ΔDDO et en vitesse radiale VrDO avec un domaine d'imprécision ΔVrDO, le radar, de type à compression d'impulsions, émettant vers les cibles une onde sous forme d'un train d'impulsions ...Ei, Ei+1, ... de fréquence de récurrence Fr, de bruit Bp porté par l'onde, le radar comportant un détecteur des échos reçus, de sensibilité St,

Le procédé consiste à déterminer les fréquences de récurrence Fr minimisant dans le domaine d'imprécision de désignation en distance ΔDDO et en vitesse radiale ΔVrDO, d'une part, la perte de signal de l'écho rétrodiffusé par la cible et, d'autre part, la désensibilisation du détecteur radar par les échos rétrodiffusés par le fouillis,

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