CA2080024A1 - Modulation integree - Google Patents

Modulation integree

Info

Publication number
CA2080024A1
CA2080024A1 CA002080024A CA2080024A CA2080024A1 CA 2080024 A1 CA2080024 A1 CA 2080024A1 CA 002080024 A CA002080024 A CA 002080024A CA 2080024 A CA2080024 A CA 2080024A CA 2080024 A1 CA2080024 A1 CA 2080024A1
Authority
CA
Canada
Prior art keywords
modulation
receiver
attribute
frequency
interval
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002080024A
Other languages
English (en)
Inventor
Vick Russell
Laurence Raymond Miller
Dean Anthony Cooper
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2080024A1 publication Critical patent/CA2080024A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B2001/6912—Spread spectrum techniques using chirp

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Amplifiers (AREA)
  • Optical Communication System (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
CA002080024A 1990-04-06 1991-03-21 Modulation integree Abandoned CA2080024A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPJ952790 1990-04-06
AUPJ9527 1990-04-06
AUPJ9704 1990-04-20
AUPJ970490 1990-04-20

Publications (1)

Publication Number Publication Date
CA2080024A1 true CA2080024A1 (fr) 1991-10-07

Family

ID=25643842

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002080024A Abandoned CA2080024A1 (fr) 1990-04-06 1991-03-21 Modulation integree

Country Status (4)

Country Link
JP (1) JPH05506505A (fr)
AU (1) AU7470191A (fr)
CA (1) CA2080024A1 (fr)
WO (1) WO1991016639A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2310098A (en) * 1996-02-08 1997-08-13 Philip Bernard Wesby Locating mobile telephone
GB2312801A (en) * 1996-04-30 1997-11-05 Tagware Ltd Locating and reading tags by phase comparison
US5982808A (en) * 1996-08-30 1999-11-09 Harris Corporation System and method for communicating with plural remote transmitter
GB2330716A (en) * 1997-10-27 1999-04-28 Motorola Ltd Position determination using a reference transmitter
EP1086446B1 (fr) * 1998-06-04 2002-09-04 Harris Corporation Systeme et procede pour communiquer avec plusieurs emetteurs a distance
AU7814898A (en) * 1998-06-04 1999-12-20 Harris Corporation A system and method for communicating and/or geolocating plural remote transmitters using a time invariant matched filter
FI20021252A0 (fi) 2002-06-26 2002-06-26 Nokia Corp Menetelmä absoluuttiaikaeron laskemiseksi radiojärjestelmässä ja radiojärjestelmä
JP3801123B2 (ja) 2002-09-06 2006-07-26 株式会社日立製作所 無線システムおよびそのサーバーならびにその基地局
US9800288B2 (en) 2015-03-03 2017-10-24 Semtech Corporation Communication device and method in the cellular band

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419865A (en) * 1967-05-10 1968-12-31 John P. Chisholm Mobile emergency unit locating system
DE2048055C1 (de) * 1970-09-30 1978-04-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Feststellung der
US3848254A (en) * 1971-07-28 1974-11-12 Siemens Ag Method for locating vehicles
US3995273A (en) * 1975-04-30 1976-11-30 Control Data Corporation Radio position determining apparatus
JPH07123233B2 (ja) * 1986-02-04 1995-12-25 ブリティッシュ・エアロスペース・オーストラリア・リミテッド スペクトル拡散多重伝送装置及び方式
US4812852A (en) * 1987-02-20 1989-03-14 Scientific Development Corporation Locating system and method
JPS6488273A (en) * 1987-09-30 1989-04-03 Nec Corp Communication/position-measurement system of moving body by satellites

Also Published As

Publication number Publication date
AU7470191A (en) 1991-11-11
WO1991016639A1 (fr) 1991-10-31
JPH05506505A (ja) 1993-09-22

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued
FZDE Discontinued

Effective date: 19980323