GB1421027A - Doppler scanning guidance system receiver - Google Patents
Doppler scanning guidance system receiverInfo
- Publication number
- GB1421027A GB1421027A GB1821773A GB1821773A GB1421027A GB 1421027 A GB1421027 A GB 1421027A GB 1821773 A GB1821773 A GB 1821773A GB 1821773 A GB1821773 A GB 1821773A GB 1421027 A GB1421027 A GB 1421027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- derived
- centre frequency
- signal
- beat signal
- frequency
- 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
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 (US08124317-20120228-C00026.png) | 1972-04-28 | 1972-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1421027A true GB1421027A (en) | 1976-01-14 |
Family
ID=9097712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1821773A Expired GB1421027A (en) | 1972-04-28 | 1973-04-16 | Doppler scanning guidance system receiver |
Country Status (7)
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 (US08124317-20120228-C00026.png) * | 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 (US08124317-20120228-C00026.png) * | 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 IT IT23417/73A patent/IT984126B/it active
- 1973-04-26 DE DE2321229A patent/DE2321229A1/de active Pending
- 1973-04-26 JP JP48046846A patent/JPS4948291A/ja active Pending
- 1973-04-27 US US354924A patent/US3863055A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AU5426373A (en) | 1974-10-10 |
| FR2181553B1 (US08124317-20120228-C00026.png) | 1977-08-26 |
| JPS4948291A (US08124317-20120228-C00026.png) | 1974-05-10 |
| US3863055A (en) | 1975-01-28 |
| AU471658B2 (en) | 1976-04-29 |
| DE2321229A1 (de) | 1973-11-08 |
| IT984126B (it) | 1974-11-20 |
| FR2181553A1 (US08124317-20120228-C00026.png) | 1973-12-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |