BR0013412A - Processo para localizar a fonte de um sinal desconhecido, e, dispositivo de localização para localizar a fonte de um sinal desconhecido recebido por uma pluralidade de retransmissores de sinal - Google Patents

Processo para localizar a fonte de um sinal desconhecido, e, dispositivo de localização para localizar a fonte de um sinal desconhecido recebido por uma pluralidade de retransmissores de sinal

Info

Publication number
BR0013412A
BR0013412A BR0013412-0A BR0013412A BR0013412A BR 0013412 A BR0013412 A BR 0013412A BR 0013412 A BR0013412 A BR 0013412A BR 0013412 A BR0013412 A BR 0013412A
Authority
BR
Brazil
Prior art keywords
signal
source
unknown
locating
time
Prior art date
Application number
BR0013412-0A
Other languages
English (en)
Inventor
Simon Robert Duck
Paul Richard Edmonds
Christopher Griffin
Original Assignee
Qinetiq Ltd
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 Qinetiq Ltd filed Critical Qinetiq Ltd
Publication of BR0013412A publication Critical patent/BR0013412A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/04—Details
    • G01S1/045—Receivers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/10—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0246—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves involving frequency difference of arrival or Doppler measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/022—Means for monitoring or calibrating
    • G01S1/026—Means for monitoring or calibrating of associated receivers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radio Relay Systems (AREA)

Abstract

"PROCESSO PARA LOCALIZAR A FONTE DE UM SINAL DESCONHECIDO, E, DISPOSITIVO DE LOCALIZAçãO PARA LOCALIZAR A FONTE DE UM SINAL DESCONHECIDO RECEBIDO POR UMA PLURALIDADE DE RETRANSMISSORES DE SINAL". Processo para determinar a localização de uma fonte desconhecida (10) transmitindo um sinal para retransmissores de satélite (14 e 16) compreende receber réplicas do sinal a partir dos retransmissores nos receptores (18). Os receptores (18) transmitem também e recebem sinais de referência via respectivos retransmissores (14 e 16). Todos os sinais são convertidos para baixo, digitalizados e correlacionados um com o outro em pares, usando uma função de correlação incluindo um termo que compensa quanto ao deslocamento de freq³ência diferencial variando com o tempo (DFO). A compensação para deslocamento de tempo diferencial variando com o tempo ou dilação de tempo é obtida replicando ou adicionando amostras de sinais e aplicando correções de fase. Este procedimento habilita um máximo de correlação e resultados de medição associados a serem obtidos, apesar dos efeitos de movimento de satélite retransmissor, que se abrandam com isto. Resultados são usados em uma técnica geométrica da técnica anterior, para localizar o transmissor desconhecido.
BR0013412-0A 1999-08-19 2000-07-31 Processo para localizar a fonte de um sinal desconhecido, e, dispositivo de localização para localizar a fonte de um sinal desconhecido recebido por uma pluralidade de retransmissores de sinal BR0013412A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9919525.7A GB9919525D0 (en) 1999-08-19 1999-08-19 Method and apparatus for locating the source of an unknown signal
PCT/GB2000/002940 WO2001014902A1 (en) 1999-08-19 2000-07-31 Method and apparatus for locating the source of an unknown signal

Publications (1)

Publication Number Publication Date
BR0013412A true BR0013412A (pt) 2002-04-30

Family

ID=10859363

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0013412-0A BR0013412A (pt) 1999-08-19 2000-07-31 Processo para localizar a fonte de um sinal desconhecido, e, dispositivo de localização para localizar a fonte de um sinal desconhecido recebido por uma pluralidade de retransmissores de sinal

Country Status (16)

Country Link
US (1) US6618009B2 (pt)
EP (1) EP1204882B1 (pt)
JP (1) JP4782336B2 (pt)
KR (1) KR100810923B1 (pt)
CN (1) CN1249448C (pt)
AR (1) AR025074A1 (pt)
AT (1) ATE305615T1 (pt)
AU (1) AU768011B2 (pt)
BR (1) BR0013412A (pt)
CA (1) CA2380802C (pt)
DE (1) DE60022889T2 (pt)
GB (2) GB9919525D0 (pt)
HK (1) HK1047473A1 (pt)
MX (1) MXPA02001697A (pt)
WO (1) WO2001014902A1 (pt)
ZA (1) ZA200200799B (pt)

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US6618009B2 (en) 2003-09-09
AU768011B2 (en) 2003-11-27
ZA200200799B (en) 2003-06-25
CN1370279A (zh) 2002-09-18
GB9921173D0 (en) 1999-11-10
AR025074A1 (es) 2002-11-06
DE60022889T2 (de) 2006-06-08
GB9919525D0 (en) 1999-10-20
WO2001014902A1 (en) 2001-03-01
HK1047473A1 (en) 2003-02-21
CN1249448C (zh) 2006-04-05
JP2003507747A (ja) 2003-02-25
KR20020029928A (ko) 2002-04-20
EP1204882A1 (en) 2002-05-15
EP1204882B1 (en) 2005-09-28
ATE305615T1 (de) 2005-10-15
JP4782336B2 (ja) 2011-09-28
MXPA02001697A (es) 2003-10-15
DE60022889D1 (de) 2005-11-03
US20020070889A1 (en) 2002-06-13
CA2380802C (en) 2008-12-16
CA2380802A1 (en) 2001-03-01
KR100810923B1 (ko) 2008-03-10
AU6301600A (en) 2001-03-19

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