FR2209257A1 - - Google Patents
Info
- Publication number
- FR2209257A1 FR2209257A1 FR7339878A FR7339878A FR2209257A1 FR 2209257 A1 FR2209257 A1 FR 2209257A1 FR 7339878 A FR7339878 A FR 7339878A FR 7339878 A FR7339878 A FR 7339878A FR 2209257 A1 FR2209257 A1 FR 2209257A1
- Authority
- FR
- France
- 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.)
- Granted
Links
Classifications
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- 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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL1972159224A PL93282B1 (it) | 1971-12-17 | 1972-12-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2209257A1 true FR2209257A1 (it) | 1974-06-28 |
FR2209257B1 FR2209257B1 (it) | 1978-04-21 |
Family
ID=19960788
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7339878A Expired FR2209257B1 (it) | 1972-12-01 | 1973-11-09 | |
FR7339879A Expired FR2206508B2 (it) | 1972-12-01 | 1973-11-09 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7339879A Expired FR2206508B2 (it) | 1972-12-01 | 1973-11-09 |
Country Status (2)
Country | Link |
---|---|
FR (2) | FR2209257B1 (it) |
IT (1) | IT1046436B (it) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2472888A1 (fr) * | 1979-12-11 | 1981-07-03 | Juzhnoe Proizv Obiedin | Recepteur-indicateur bivoie des systemes radio a dephasage |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1181134A (en) * | 1967-08-22 | 1970-02-11 | Decca Ltd | Improvements in or relating to Phase Comparison Navigation Systems |
CA969259A (en) * | 1971-03-31 | 1975-06-10 | Harold W. Jackson | Navigation receiver for use in a low frequency navigation system |
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1973
- 1973-11-09 FR FR7339878A patent/FR2209257B1/fr not_active Expired
- 1973-11-09 FR FR7339879A patent/FR2206508B2/fr not_active Expired
- 1973-11-21 IT IT7043073A patent/IT1046436B/it active
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2472888A1 (fr) * | 1979-12-11 | 1981-07-03 | Juzhnoe Proizv Obiedin | Recepteur-indicateur bivoie des systemes radio a dephasage |
Also Published As
Publication number | Publication date |
---|---|
IT1046436B (it) | 1980-06-30 |
FR2209257B1 (it) | 1978-04-21 |
FR2206508A2 (it) | 1974-06-07 |
FR2206508B2 (it) | 1977-08-05 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |