DE3852376D1 - LORAN-C-Navigationssystem. - Google Patents
LORAN-C-Navigationssystem.Info
- Publication number
- DE3852376D1 DE3852376D1 DE3852376T DE3852376T DE3852376D1 DE 3852376 D1 DE3852376 D1 DE 3852376D1 DE 3852376 T DE3852376 T DE 3852376T DE 3852376 T DE3852376 T DE 3852376T DE 3852376 D1 DE3852376 D1 DE 3852376D1
- Authority
- DE
- Germany
- Prior art keywords
- loran
- navigation system
- navigation
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/026—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse time characteristics modulation, e.g. width, position, interval
-
- 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
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)
- Position Fixing By Use Of Radio Waves (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/116,381 US4821038A (en) | 1987-11-03 | 1987-11-03 | Method of and apparatus for Loran-C message communication with reduced skywave navigation location errors and the like |
US07/116,461 US4800391A (en) | 1987-11-03 | 1987-11-03 | Method of and apparatus for message communication on Loran-C navigational signal broadcasts and the like with reduced navigation errors |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3852376D1 true DE3852376D1 (de) | 1995-01-19 |
DE3852376T2 DE3852376T2 (de) | 1995-07-13 |
Family
ID=26814177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3852376T Expired - Fee Related DE3852376T2 (de) | 1987-11-03 | 1988-10-28 | LORAN-C-Navigationssystem. |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0315377B1 (de) |
JP (1) | JP2770964B2 (de) |
KR (1) | KR930002448B1 (de) |
CN (1) | CN1015025B (de) |
CA (1) | CA1320255C (de) |
DE (1) | DE3852376T2 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1376149A1 (de) * | 2002-06-26 | 2004-01-02 | STMicroelectronics S.A. | Verfahren und Vorrichtung zur Steuerung eines Impulsgenerators zur Übertragung von einem ultrabreitbandigen pulslagenmodulierten Signal |
CN101051872B (zh) * | 2007-05-16 | 2011-05-04 | 西安理工大学 | 一种结合asf(td)和asf(toa)测量获取asf(toa)的方法 |
KR101372962B1 (ko) * | 2012-11-15 | 2014-03-14 | 한국표준과학연구원 | 송신국 송신지연 측정방법, 측정장치, 로란신호를 이용한 표준시각 초펄스 생성방법, 생성시스템 및 그 기록매체 |
KR102124549B1 (ko) * | 2018-07-13 | 2020-06-18 | 한국해양과학기술원 | 로란 시스템의 신호 복조 장치 |
CN109188356B (zh) * | 2018-09-30 | 2020-08-18 | 西安理工大学 | 一种应用于罗兰***的天波定位方法 |
CN111965672B (zh) * | 2020-07-24 | 2024-02-02 | 西安理工大学 | 基于复杂地形下的罗兰-c信号模拟器的信号处理方法 |
CN112083442A (zh) * | 2020-08-31 | 2020-12-15 | 中国科学院国家授时中心 | 基于附加调制脉冲的bpl长波数据调制设计方法 |
WO2023039299A1 (en) * | 2021-09-10 | 2023-03-16 | Microchip Technology Incorporated | Reception of signals for ranging, timing, and data transfer |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US4423419A (en) * | 1980-10-20 | 1983-12-27 | Megapulse Incorporated | Pulsed, pseudo random position fixing radio navigation method and system and the like |
US4482896A (en) * | 1982-12-27 | 1984-11-13 | Motorola, Inc. | Differential ECD detector for Loran C receiver |
-
1988
- 1988-10-26 CA CA000581375A patent/CA1320255C/en not_active Expired - Fee Related
- 1988-10-28 EP EP88310149A patent/EP0315377B1/de not_active Expired - Lifetime
- 1988-10-28 DE DE3852376T patent/DE3852376T2/de not_active Expired - Fee Related
- 1988-11-02 KR KR1019880014345A patent/KR930002448B1/ko not_active IP Right Cessation
- 1988-11-03 CN CN88107614A patent/CN1015025B/zh not_active Expired
- 1988-11-04 JP JP63279213A patent/JP2770964B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3852376T2 (de) | 1995-07-13 |
EP0315377A3 (de) | 1991-03-27 |
KR890009136A (ko) | 1989-07-15 |
EP0315377A2 (de) | 1989-05-10 |
JP2770964B2 (ja) | 1998-07-02 |
CN1015025B (zh) | 1991-12-04 |
KR930002448B1 (ko) | 1993-03-30 |
JPH01287490A (ja) | 1989-11-20 |
CA1320255C (en) | 1993-07-13 |
EP0315377B1 (de) | 1994-12-07 |
CN1035181A (zh) | 1989-08-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |