JPS6244228B2 - - Google Patents
Info
- Publication number
- JPS6244228B2 JPS6244228B2 JP56005667A JP566781A JPS6244228B2 JP S6244228 B2 JPS6244228 B2 JP S6244228B2 JP 56005667 A JP56005667 A JP 56005667A JP 566781 A JP566781 A JP 566781A JP S6244228 B2 JPS6244228 B2 JP S6244228B2
- Authority
- JP
- Japan
- Prior art keywords
- phase
- signal
- frequency
- output
- voltage controlled
- 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
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 description 34
- 238000010586 diagram Methods 0.000 description 16
- 230000010355 oscillation Effects 0.000 description 12
- 238000001514 detection method Methods 0.000 description 7
- 239000013078 crystal Substances 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003786 synthesis reaction 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
- 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
- G01S1/022—Means for monitoring or calibrating
- G01S1/026—Means for monitoring or calibrating of associated receivers
-
- 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
- G01S1/30—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 continuous waves or intermittent trains of continuous waves, the intermittency not being for the purpose of determining direction or position line and the transit times being compared by measuring the phase difference
- G01S1/306—Analogous systems in which frequency-related signals (harmonics) are compared in phase, e.g. DECCA systems
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
- H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
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)
- Superheterodyne Receivers (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56005667A JPS57119271A (en) | 1981-01-17 | 1981-01-17 | Decca receiving device |
| US06/336,327 US4496951A (en) | 1981-01-17 | 1981-12-31 | Hyperbolic navigation receiver |
| EP82300234A EP0057073B1 (en) | 1981-01-17 | 1982-01-18 | A hyperbolic navigation receiver |
| DE8282300234T DE3266450D1 (en) | 1981-01-17 | 1982-01-18 | A hyperbolic navigation receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56005667A JPS57119271A (en) | 1981-01-17 | 1981-01-17 | Decca receiving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57119271A JPS57119271A (en) | 1982-07-24 |
| JPS6244228B2 true JPS6244228B2 (US20020051482A1-20020502-M00012.png) | 1987-09-18 |
Family
ID=11617451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56005667A Granted JPS57119271A (en) | 1981-01-17 | 1981-01-17 | Decca receiving device |
Country Status (4)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0316034U (US20020051482A1-20020502-M00012.png) * | 1989-06-29 | 1991-02-18 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58115379A (ja) * | 1981-12-29 | 1983-07-09 | Fujitsu Ltd | 双曲線航法用位相同期形受信装置 |
| CN111025339B (zh) * | 2018-10-09 | 2022-04-15 | 百度在线网络技术（北京）有限公司 | 确定定位延时的方法、装置、设备和计算机可读存储介质 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3117319A (en) * | 1959-08-13 | 1964-01-07 | Harris A Stover | Navigational system |
| US3214759A (en) * | 1962-04-19 | 1965-10-26 | Seismograph Service Corp | Apparatus for providing lane identifi, cation in hyperbolic position finding systems |
| GB1308150A (en) * | 1969-11-10 | 1973-02-21 | Decca Ltd | Receivers for phase comparison radio navigation systems |
| US3818477A (en) * | 1969-12-31 | 1974-06-18 | American Standard Inc | Pulse-operated receiver |
| PL93282B1 (US20020051482A1-20020502-M00012.png) * | 1971-12-17 | 1977-05-30 | Societe D'etude Et D'application Des Techniques Nouvelles Neotec | |
| US3936828A (en) * | 1972-12-22 | 1976-02-03 | Communications Components Corporation | VLF navigation system |
| US3928852A (en) * | 1973-10-25 | 1975-12-23 | Navidyne Corp | Radio navigation system and apparatus |
| US3996515A (en) * | 1975-04-28 | 1976-12-07 | Tracor, Inc. | Method for frequency cross-coupling of channels in an Omega Navigation receiver system |
| US4114155A (en) * | 1976-07-30 | 1978-09-12 | Cincinnati Electronics Corporation | Position determining apparatus and method |
-
1981
- 1981-01-17 JP JP56005667A patent/JPS57119271A/ja active Granted
- 1981-12-31 US US06/336,327 patent/US4496951A/en not_active Expired - Lifetime
-
1982
- 1982-01-18 EP EP82300234A patent/EP0057073B1/en not_active Expired
- 1982-01-18 DE DE8282300234T patent/DE3266450D1/de not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0316034U (US20020051482A1-20020502-M00012.png) * | 1989-06-29 | 1991-02-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0057073A1 (en) | 1982-08-04 |
| JPS57119271A (en) | 1982-07-24 |
| DE3266450D1 (en) | 1985-10-31 |
| US4496951A (en) | 1985-01-29 |
| EP0057073B1 (en) | 1985-09-25 |
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