MX9801437A - Referencia de direccion de haz de satelite usando terminales terrestres de direccion de haz. - Google Patents

Referencia de direccion de haz de satelite usando terminales terrestres de direccion de haz.

Info

Publication number
MX9801437A
MX9801437A MX9801437A MX9801437A MX9801437A MX 9801437 A MX9801437 A MX 9801437A MX 9801437 A MX9801437 A MX 9801437A MX 9801437 A MX9801437 A MX 9801437A MX 9801437 A MX9801437 A MX 9801437A
Authority
MX
Mexico
Prior art keywords
satellite
signal
beam steering
gain
determining
Prior art date
Application number
MX9801437A
Other languages
English (en)
Other versions
MXPA98001437A (es
Inventor
Robert A Wiedeman
Original Assignee
Globalstar Lp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Globalstar Lp filed Critical Globalstar Lp
Publication of MX9801437A publication Critical patent/MX9801437A/es
Publication of MXPA98001437A publication Critical patent/MXPA98001437A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/2041—Spot beam multiple access
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/244—Spacecraft control systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
    • B64G1/1007—Communications satellites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/36—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors
    • B64G1/363—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors using sun sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/36—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors
    • B64G1/365—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors using horizon or Earth sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
    • B64G1/36—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors
    • B64G1/366—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors using magnetometers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/66—Arrangements or adaptations of apparatus or instruments, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G3/00—Observing or tracking cosmonautic vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18517—Transmission equipment in earth stations

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Radio Relay Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Un sistema de comunicacion por satélite tiene por lo menos un satélite con una antena que genera un patron de haz en movimiento sobre la superficie de la tierra; el patron de haz comprende una pluralidad de sub-haces; un método para determinar una señal de correccion de posicion para el satélite que comprende: proveer un transmisor de referencia en la tierra, transmitir una señal del transmisor en uno de los sub-haces, recibir la señal con la antena del satélite y repetir la señal a una estacion terrestre, recibir la señal repetida con la estacion terrestre, determinar una ganancia de la señal recibida, comparar la ganancia determinada con una ganancia que se espera sea recibida en base al conocimiento predeterminado de las características de la antena del satélite; y determinar una diferencia entre la ganancia determinada y la ganancia esperada para derivar una señal de correccion indicativa de un error de posicion del satélite.
MXPA/A/1998/001437A 1995-08-23 1998-02-20 Referencia de direccion de haz de satelite usando terminales terrestres de direccion de haz MXPA98001437A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/518,524 US5758260A (en) 1995-08-23 1995-08-23 Satellite beam steering reference using terrestrial beam steering terminals
US08518524 1995-08-23
PCT/US1996/010788 WO1997008851A1 (en) 1995-08-23 1996-06-25 Satellite beam steering reference using terrestrial beam steering terminals

Publications (2)

Publication Number Publication Date
MX9801437A true MX9801437A (es) 1998-05-31
MXPA98001437A MXPA98001437A (es) 1998-10-23

Family

ID=

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109955227A (zh) * 2019-04-04 2019-07-02 银河航天(北京)通信技术有限公司 一种指向机构、机械臂及航天器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109955227A (zh) * 2019-04-04 2019-07-02 银河航天(北京)通信技术有限公司 一种指向机构、机械臂及航天器

Also Published As

Publication number Publication date
EP0762254A2 (en) 1997-03-12
TW307072B (es) 1997-06-01
US5697050A (en) 1997-12-09
CA2180058A1 (en) 1997-02-24
BR9610121A (pt) 1999-05-18
KR970011902A (ko) 1997-03-27
EP0762254A3 (en) 1997-05-28
AU6392396A (en) 1997-03-19
JPH09136699A (ja) 1997-05-27
WO1997008851A1 (en) 1997-03-06
US5758260A (en) 1998-05-26

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