JPS4948291A - - Google Patents
Info
- Publication number
- JPS4948291A JPS4948291A JP48046846A JP4684673A JPS4948291A JP S4948291 A JPS4948291 A JP S4948291A JP 48046846 A JP48046846 A JP 48046846A JP 4684673 A JP4684673 A JP 4684673A JP S4948291 A JPS4948291 A JP S4948291A
- Authority
- JP
- Japan
- 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
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7215212A FR2181553B1 (ja) | 1972-04-28 | 1972-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4948291A true JPS4948291A (ja) | 1974-05-10 |
Family
ID=9097712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48046846A Pending JPS4948291A (ja) | 1972-04-28 | 1973-04-26 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3863055A (ja) |
| JP (1) | JPS4948291A (ja) |
| AU (1) | AU471658B2 (ja) |
| DE (1) | DE2321229A1 (ja) |
| FR (1) | FR2181553B1 (ja) |
| GB (1) | GB1421027A (ja) |
| IT (1) | IT984126B (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1579329A (en) * | 1976-04-08 | 1980-11-19 | Plessey Co Ltd | Identification frequency |
| US4298985A (en) * | 1979-12-31 | 1981-11-03 | The United States Of America As Represented By The Secretary Of The Army | Digital filter bank detector |
| DE102007038829B4 (de) | 2007-08-16 | 2009-09-03 | Stefan Zoell | Vorrichtung zur Körperunterstützung und Verwendung der Vorrichtung in unterschiedlichen Tätigkeitsbereichen eines Benutzers |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3657693A (en) * | 1965-11-15 | 1972-04-18 | Control Data Corp | Multiple beam scanned planar array |
| US3444555A (en) * | 1967-06-06 | 1969-05-13 | Itt | Frequency scanning radar system with improved angular target detection |
| GB1225190A (ja) * | 1968-09-23 | 1971-03-17 | ||
| US3568189A (en) * | 1969-03-11 | 1971-03-02 | Joseph L Poirier | Spectrum analysis radar system for angle determination |
| BE759259A (fr) * | 1969-11-24 | 1971-05-24 | Int Standard Electric Corp | Procede de mesure de frequence |
| FR2120293A5 (ja) * | 1970-12-29 | 1972-08-18 | Labo Cent Telecommunicat | |
| US3735403A (en) * | 1971-08-02 | 1973-05-22 | Raytheon Co | Tracking radar |
| BE792171A (fr) * | 1971-09-17 | 1973-06-01 | Int Standard Electric Corp | Antenne d'exploration de trame |
-
1972
- 1972-04-28 FR FR7215212A patent/FR2181553B1/fr not_active Expired
-
1973
- 1973-04-09 AU AU54263/73A patent/AU471658B2/en not_active Expired
- 1973-04-16 GB GB1821773A patent/GB1421027A/en not_active Expired
- 1973-04-26 JP JP48046846A patent/JPS4948291A/ja active Pending
- 1973-04-26 IT IT23417/73A patent/IT984126B/it active
- 1973-04-26 DE DE2321229A patent/DE2321229A1/de active Pending
- 1973-04-27 US US354924A patent/US3863055A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2181553A1 (ja) | 1973-12-07 |
| AU5426373A (en) | 1974-10-10 |
| FR2181553B1 (ja) | 1977-08-26 |
| DE2321229A1 (de) | 1973-11-08 |
| US3863055A (en) | 1975-01-28 |
| IT984126B (it) | 1974-11-20 |
| GB1421027A (en) | 1976-01-14 |
| AU471658B2 (en) | 1976-04-29 |