CA1124820A - Loran-c navigation apparatus - Google Patents
Loran-c navigation apparatusInfo
- Publication number
- CA1124820A CA1124820A CA311,179A CA311179A CA1124820A CA 1124820 A CA1124820 A CA 1124820A CA 311179 A CA311179 A CA 311179A CA 1124820 A CA1124820 A CA 1124820A
- Authority
- CA
- Canada
- Prior art keywords
- signals
- time
- received
- arrival
- master
- 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
- 238000005259 measurement Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims description 11
- 230000000007 visual effect Effects 0.000 claims description 5
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- 230000003252 repetitive effect Effects 0.000 claims 2
- 230000001702 transmitter Effects 0.000 claims 1
- 230000002950 deficient Effects 0.000 abstract 1
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- 230000004044 response Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
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- 238000012545 processing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 101100172879 Caenorhabditis elegans sec-5 gene Proteins 0.000 description 1
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- 101100328463 Mus musculus Cmya5 gene Proteins 0.000 description 1
- 241000428533 Rhis Species 0.000 description 1
- XDXHAEQXIBQUEZ-UHFFFAOYSA-N Ropinirole hydrochloride Chemical compound Cl.CCCN(CCC)CCC1=CC=CC2=C1CC(=O)N2 XDXHAEQXIBQUEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
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- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000002674 ointment Substances 0.000 description 1
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- 238000012552 review Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012549 training Methods 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
- 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
- G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems
-
- 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
- G01S1/08—Systems for determining direction or position line
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
- G01S1/245—Details of receivers cooperating therewith, e.g. determining positive zero crossing of third cycle in LORAN-C
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84270677A | 1977-10-17 | 1977-10-17 | |
| US842,706 | 1977-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1124820A true CA1124820A (en) | 1982-06-01 |
Family
ID=25288055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA311,179A Expired CA1124820A (en) | 1977-10-17 | 1978-09-13 | Loran-c navigation apparatus |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS55452A (xx) |
| CA (1) | CA1124820A (xx) |
| DE (1) | DE2843956C2 (xx) |
| FR (1) | FR2406205A1 (xx) |
| GB (1) | GB2016851B (xx) |
| IT (1) | IT1106209B (xx) |
| NL (1) | NL7810402A (xx) |
| NO (1) | NO153275C (xx) |
| SE (1) | SE440152B (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3038042A1 (de) * | 1980-10-08 | 1982-05-13 | Sanders Associates, Inc., Nashua, N.H. | Verfahren und vorrichtung zum selbstkalibrieren eines loran-c-empfaengers |
| US4423419A (en) * | 1980-10-20 | 1983-12-27 | Megapulse Incorporated | Pulsed, pseudo random position fixing radio navigation method and system and the like |
| JPS57172264A (en) * | 1980-11-26 | 1982-10-23 | Sanders Associates Inc | Self-calibration method of and apparatus for loran c receiver |
| JPS57109415A (en) * | 1980-12-26 | 1982-07-07 | Sony Corp | Voltage control tuning circuit |
| FI20195031A1 (fi) | 2019-01-18 | 2020-07-19 | Exalocus Oy | Signaalien kulkuaikaeroon pohjautuva paikannus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1315698A (en) * | 1970-09-28 | 1973-05-02 | Decca Ltd | Systems for identifying phase coded groups of radio frequency pulses |
| US3921076A (en) * | 1973-03-08 | 1975-11-18 | Int Navigation Corp | Method of and apparatus for locating predetermined portions of a radio-frequency pulse, particularly adapted for leading edge location of loran and similar navigational pulses |
| US3868691A (en) * | 1973-04-13 | 1975-02-25 | Epsco Inc | Loran receiver automated master search |
| US3947849A (en) * | 1974-06-20 | 1976-03-30 | The Johns Hopkins University | Loran receiver-navigator |
| US4104635A (en) * | 1976-11-12 | 1978-08-01 | Sanders Associates, Inc. | LORAN-C navigation apparatus |
-
1978
- 1978-09-13 CA CA311,179A patent/CA1124820A/en not_active Expired
- 1978-10-09 DE DE2843956A patent/DE2843956C2/de not_active Expired
- 1978-10-13 SE SE7810714A patent/SE440152B/sv not_active IP Right Cessation
- 1978-10-16 NO NO783501A patent/NO153275C/no unknown
- 1978-10-16 FR FR7829420A patent/FR2406205A1/fr active Granted
- 1978-10-17 IT IT51546/78A patent/IT1106209B/it active
- 1978-10-17 NL NL7810402A patent/NL7810402A/xx not_active Application Discontinuation
- 1978-10-17 GB GB7840831A patent/GB2016851B/en not_active Expired
- 1978-10-17 JP JP12830278A patent/JPS55452A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| SE7810714L (sv) | 1979-04-18 |
| DE2843956C2 (de) | 1985-03-14 |
| NL7810402A (nl) | 1979-04-19 |
| FR2406205A1 (fr) | 1979-05-11 |
| DE2843956A1 (de) | 1979-04-19 |
| NO783501L (no) | 1979-04-18 |
| JPS55452A (en) | 1980-01-05 |
| GB2016851B (en) | 1982-05-19 |
| JPS6131829B2 (xx) | 1986-07-23 |
| NO153275B (no) | 1985-11-04 |
| SE440152B (sv) | 1985-07-15 |
| FR2406205B1 (xx) | 1985-04-19 |
| IT7851546A0 (it) | 1978-10-17 |
| NO153275C (no) | 1986-02-12 |
| IT1106209B (it) | 1985-11-11 |
| GB2016851A (en) | 1979-09-26 |
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| NO854658L (no) | Apparat for foelging av fasediskontinuiteter innfoert i et innkommende signal. | |
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| US4350984A (en) | Method of position fixing active sources utilizing differential doppler | |
| US4224623A (en) | Loran-C cycle detector | |
| US3754260A (en) | Loran-c third cycle identification through the use of omega | |
| US3816832A (en) | Radio receiving station | |
| US4468668A (en) | Method for processing signals in a navigation receiver | |
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| Frank | Multiple pulse and phase code modulation in the Loran-C system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |