DE2338844A1 - Empfaenger fuer dopplerlandesysteme - Google Patents
Empfaenger fuer dopplerlandesystemeInfo
- Publication number
- DE2338844A1 DE2338844A1 DE19732338844 DE2338844A DE2338844A1 DE 2338844 A1 DE2338844 A1 DE 2338844A1 DE 19732338844 DE19732338844 DE 19732338844 DE 2338844 A DE2338844 A DE 2338844A DE 2338844 A1 DE2338844 A1 DE 2338844A1
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- doppler
- output signal
- signals
- voltage
- 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.)
- Pending
Links
- 230000003595 spectral effect Effects 0.000 claims description 13
- 238000001228 spectrum Methods 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims 1
- 230000002441 reversible effect Effects 0.000 description 2
- 101100280681 Arabidopsis thaliana FAS1 gene Proteins 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007704 transition 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
- G01S1/38—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna
- G01S1/40—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna the apparent movement of the antenna being produced by cyclic sequential energisation of fixed antennas
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3623172A GB1402885A (en) | 1972-08-03 | 1972-08-03 | Doppler radio gui-ance systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2338844A1 true DE2338844A1 (de) | 1974-02-14 |
Family
ID=10386192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732338844 Pending DE2338844A1 (de) | 1972-08-03 | 1973-07-31 | Empfaenger fuer dopplerlandesysteme |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3893118A (enExample) |
| JP (1) | JPS528236B2 (enExample) |
| AU (1) | AU475716B2 (enExample) |
| DE (1) | DE2338844A1 (enExample) |
| FR (1) | FR2194972B3 (enExample) |
| GB (1) | GB1402885A (enExample) |
| IT (1) | IT992743B (enExample) |
| NL (1) | NL7310806A (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1489923A (en) * | 1974-02-12 | 1977-10-26 | Standard Telephones Cables Ltd | Frequency measuring arrangement |
| GB1512780A (en) * | 1974-12-23 | 1978-06-01 | Standard Telephones Cables Ltd | Doppler scanning guidance system radio receiver |
| US4301455A (en) * | 1979-10-17 | 1981-11-17 | United States Of America | Groundspeed measurement system |
| US5970105A (en) * | 1998-05-11 | 1999-10-19 | Cleveland Medical Devices Inc. | Apparatus and method for efficient wireless communications in the presence of frequency error |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1225190A (enExample) * | 1968-09-23 | 1971-03-17 | ||
| GB1236141A (en) * | 1969-03-07 | 1971-06-23 | Standard Telephones Cables Ltd | Radio navigation system |
-
1972
- 1972-08-03 GB GB3623172A patent/GB1402885A/en not_active Expired
-
1973
- 1973-07-26 US US382957A patent/US3893118A/en not_active Expired - Lifetime
- 1973-07-26 FR FR737327353A patent/FR2194972B3/fr not_active Expired
- 1973-07-30 IT IT27256/73A patent/IT992743B/it active
- 1973-07-31 DE DE19732338844 patent/DE2338844A1/de active Pending
- 1973-08-02 AU AU58832/73A patent/AU475716B2/en not_active Expired
- 1973-08-03 JP JP48086918A patent/JPS528236B2/ja not_active Expired
- 1973-08-03 NL NL7310806A patent/NL7310806A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2194972B3 (enExample) | 1976-07-09 |
| NL7310806A (enExample) | 1974-02-05 |
| FR2194972A1 (enExample) | 1974-03-01 |
| GB1402885A (en) | 1975-08-13 |
| IT992743B (it) | 1975-09-30 |
| AU475716B2 (en) | 1976-09-02 |
| US3893118A (en) | 1975-07-01 |
| AU5883273A (en) | 1975-02-06 |
| JPS4960489A (enExample) | 1974-06-12 |
| JPS528236B2 (enExample) | 1977-03-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |