JPH022106B2 - - Google Patents
Info
- Publication number
- JPH022106B2 JPH022106B2 JP58072128A JP7212883A JPH022106B2 JP H022106 B2 JPH022106 B2 JP H022106B2 JP 58072128 A JP58072128 A JP 58072128A JP 7212883 A JP7212883 A JP 7212883A JP H022106 B2 JPH022106 B2 JP H022106B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- loran
- memory
- pulse
- circuit
- 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
- 238000005070 sampling Methods 0.000 description 39
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 28
- 238000001514 detection method Methods 0.000 description 20
- 238000007792 addition Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002123 temporal effect 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
- 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)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58072128A JPS59197876A (ja) | 1983-04-26 | 1983-04-26 | ロランc信号の自動検出装置 |
US06/601,677 US4670759A (en) | 1983-04-26 | 1984-04-18 | Automatic Loran-C signal detecting apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58072128A JPS59197876A (ja) | 1983-04-26 | 1983-04-26 | ロランc信号の自動検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59197876A JPS59197876A (ja) | 1984-11-09 |
JPH022106B2 true JPH022106B2 (en]) | 1990-01-16 |
Family
ID=13480358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58072128A Granted JPS59197876A (ja) | 1983-04-26 | 1983-04-26 | ロランc信号の自動検出装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US4670759A (en]) |
JP (1) | JPS59197876A (en]) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4791422A (en) * | 1986-07-14 | 1988-12-13 | Megapulse Incorporated | Methods of and apparatus for measuring time of arrival of remote Loran-C and related signals and effective time of transmission of local signals at transmitter sites |
FR2617980B1 (fr) * | 1987-07-06 | 1990-03-23 | Mlr Electronique | Procede de radiolocalisation d'un vehicule porteur d'un dispositif recepteur, par mesure des differences de temps de reception de signaux de radiofrequence et dispositif recepteur pour la mise en oeuvre de ce procede |
US4814771A (en) * | 1987-09-28 | 1989-03-21 | Bahr Technologies, Inc. | Apparatus and method for receiving and proessing Loran signals |
JP3547412B2 (ja) * | 2001-07-24 | 2004-07-28 | 株式会社日立製作所 | 無線端末装置及び測位システム |
CN112198539B (zh) * | 2020-09-23 | 2022-08-30 | 中国科学院精密测量科学与技术创新研究院 | 一种罗兰-c大功率半周脉冲波峰和波谷采样的实现方法 |
CN115047498A (zh) * | 2022-04-14 | 2022-09-13 | 西安理工大学 | 用于罗兰信号生成中的高精度时间对准方法 |
CN114897014B (zh) * | 2022-04-29 | 2025-04-04 | 中国电子科技集团公司第二十研究所 | 一种罗兰信号相似度评估方法 |
CN115796291A (zh) * | 2022-09-28 | 2023-03-14 | 中国科学院自动化研究所 | 信号同步方法、装置、电子设备及计算机可读存储介质 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4166275A (en) * | 1977-08-18 | 1979-08-28 | Digital Marine Electronics Corporation | Loran receiver system |
JPS552938A (en) * | 1978-06-21 | 1980-01-10 | Mitsubishi Electric Corp | Automatic pulse signal searcher |
US4268830A (en) * | 1978-08-28 | 1981-05-19 | Sanders Associates, Inc. | Self calibration of a LORAN-C navigation receiver |
JPS6043852B2 (ja) * | 1979-06-21 | 1985-09-30 | 昭和高分子株式会社 | 硬化性樹脂組成物 |
JPS5744869A (en) * | 1980-08-29 | 1982-03-13 | Japan Radio Co Ltd | Integrated signal processing circuit |
JPS57192880A (en) * | 1981-05-23 | 1982-11-27 | Furuno Electric Co Ltd | Acquiring method for loran signal |
-
1983
- 1983-04-26 JP JP58072128A patent/JPS59197876A/ja active Granted
-
1984
- 1984-04-18 US US06/601,677 patent/US4670759A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4670759A (en) | 1987-06-02 |
JPS59197876A (ja) | 1984-11-09 |
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