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1. WO1996030962 - TRACKING SYSTEM FOR TRACKING A MOVING SIGNAL SOURCE

Publication Number WO/1996/030962
Publication Date 03.10.1996
International Application No. PCT/US1996/003309
International Filing Date 20.03.1996
Chapter 2 Demand Filed 30.10.1996
IPC
H01Q 3/08 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
02using mechanical movement of antenna or antenna system as a whole
08for varying two co-ordinates of the orientation
CPC
G01S 3/42
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
3Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
02using radio waves
14Systems for determining direction or deviation from predetermined direction
38using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal
42the desired condition being maintained automatically
H01Q 3/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
QANTENNAS, i.e. RADIO AERIALS
3Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
02using mechanical movement of antenna or antenna system as a whole
08for varying two co-ordinates of the orientation
Applicants
  • SCIENTIFIC-ATLANTA, INC. [US]/[US]
Inventors
  • VICKERS, Edward, H.
  • LEWIS, Philip, C.
Agents
  • POTENZA, Joseph, M.
Priority Data
411,42330.03.1995US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TRACKING SYSTEM FOR TRACKING A MOVING SIGNAL SOURCE
(FR) SYSTEME DE POURSUITE POUR POURSUIVRE UNE SOURCE DE SIGNAUX MOBILE
Abstract
(EN)
An antenna tracking controller (102) for generating signals used to position an antenna for tracking a moving signal source includes a first Kalman filter (Figure 9) for estimating parameters of a first model of the motion of the moving signal source a second Kalman filter (Figure 9) for estimating parameters of a second model of the motion of the moving signal source. The second Kalman filter uses the parameters estimated by the first Kalman filter as initial values. A model quality charge/discharge is also provided to monitor the status of the data base.
(FR)
La présente invention décrit un contrôleur de poursuite d'antenne (102) permettant de générer des signaux utilisés pour positionner une antenne qui poursuit une source de signaux mobile, comportant un premier filtre de Kalman (Fig. 9) conçu pour afin d'estimer les paramètres d'un premier modèle du déplacement de la source de signaux mobile, un deuxième filtre de Kalman (Fig. 9) conçu pour estimer les paramètres d'un deuxième modèle du mouvement de la source de signal mobile. Le deuxième filtre de Kalman utilise comme valeurs initiales les paramètes estimés par le premier filtre de Kalman. Une charge/décharge de qualité modèle est également fournie afin de surveiller l'état de la base de données.
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