CA1050139A - Method of and system for locating a position - Google Patents
Method of and system for locating a positionInfo
- Publication number
- CA1050139A CA1050139A CA220,866A CA220866A CA1050139A CA 1050139 A CA1050139 A CA 1050139A CA 220866 A CA220866 A CA 220866A CA 1050139 A CA1050139 A CA 1050139A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- frequency
- signals
- modulating
- phase
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000000875 corresponding effect Effects 0.000 claims description 55
- 230000010355 oscillation Effects 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 abstract description 9
- 239000000969 carrier Substances 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 229910052792 caesium Inorganic materials 0.000 description 2
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 101150087426 Gnal gene Proteins 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001702 transmitter Effects 0.000 description 1
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
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
- G01S11/08—Systems for determining distance or velocity not using reflection or reradiation using radio waves using synchronised clocks
-
- 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
- G01S5/14—Determining absolute distances from a plurality of spaced points of known location
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US449452A US3916410A (en) | 1969-06-16 | 1974-03-08 | Method of and system for locating a position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1050139A true CA1050139A (en) | 1979-03-06 |
Family
ID=23784217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA220,866A Expired CA1050139A (en) | 1974-03-08 | 1975-02-25 | Method of and system for locating a position |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS50127592A (enExample) |
| CA (1) | CA1050139A (enExample) |
| CH (1) | CH607853A5 (enExample) |
| DE (1) | DE2510120A1 (enExample) |
| FR (1) | FR2263525B1 (enExample) |
| GB (1) | GB1506904A (enExample) |
| NO (1) | NO750769L (enExample) |
| ZA (1) | ZA751431B (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2704852C2 (de) * | 1977-02-05 | 1983-06-23 | Krone Gmbh, 1000 Berlin | Anordnung von Vorrichtungen, insbesondere mit einer Anzeige- bzw. Steuervorrichtung zum Führen eines Fahrzeuges |
| CN114286285B (zh) * | 2021-12-10 | 2023-07-04 | 武汉船舶通信研究所（中国船舶重工集团公司第七二二研究所） | 一种基于地理网格的通信频率探测方法及系统 |
-
1975
- 1975-02-25 CA CA220,866A patent/CA1050139A/en not_active Expired
- 1975-03-04 GB GB8904/75A patent/GB1506904A/en not_active Expired
- 1975-03-07 DE DE19752510120 patent/DE2510120A1/de not_active Withdrawn
- 1975-03-07 NO NO750769A patent/NO750769L/no unknown
- 1975-03-08 JP JP50028574A patent/JPS50127592A/ja active Pending
- 1975-03-10 ZA ZA00751431A patent/ZA751431B/xx unknown
- 1975-03-10 FR FR7507444A patent/FR2263525B1/fr not_active Expired
- 1975-03-10 CH CH302175A patent/CH607853A5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO750769L (enExample) | 1975-09-09 |
| AU7892675A (en) | 1976-09-16 |
| FR2263525A1 (enExample) | 1975-10-03 |
| FR2263525B1 (enExample) | 1978-10-13 |
| GB1506904A (en) | 1978-04-12 |
| DE2510120A1 (de) | 1976-02-05 |
| JPS50127592A (enExample) | 1975-10-07 |
| CH607853A5 (en) | 1978-11-30 |
| ZA751431B (en) | 1976-10-27 |
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