GB1257523A - - Google Patents
Info
- Publication number
- GB1257523A GB1257523A GB1257523DA GB1257523A GB 1257523 A GB1257523 A GB 1257523A GB 1257523D A GB1257523D A GB 1257523DA GB 1257523 A GB1257523 A GB 1257523A
- Authority
- GB
- United Kingdom
- Prior art keywords
- angle
- feb
- slit
- photo
- determining
- 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
- 230000000694 effects Effects 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
- G01S3/782—Systems for determining direction or deviation from predetermined direction
- G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
- G01S3/7835—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using coding masks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
- B64G1/244—Spacecraft control systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
- B64G1/28—Guiding or controlling apparatus, e.g. for attitude control using inertia or gyro effect
- B64G1/281—Spin-stabilised spacecraft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
- B64G1/36—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G3/00—Observing or tracking cosmonautic vehicles
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
- B64G1/36—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors
- B64G1/361—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors using star sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
- B64G1/36—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors
- B64G1/363—Guiding or controlling apparatus, e.g. for attitude control using sensors, e.g. sun-sensors, horizon sensors using sun sensors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/22—Analogue/digital converters pattern-reading type
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Electromagnetism (AREA)
- Astronomy & Astrophysics (AREA)
- Theoretical Computer Science (AREA)
- Optical Transform (AREA)
- Optical Communication System (AREA)
Abstract
1,257,523. Determining position. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 Feb., 1969 [5 Feb., 1968], No. 5831/69. Heading G4H. Apparatus for determining the position of a rotation stabilized satellite relative to a heavenly body S (Fig. 3) includes a cylindrical lens L between a slit F in a diaphragm for transmitting light from the heavenly body S and a binary coded plate C comprising a mask with transparent and opaque portions. Behind the plate are photo-cells comprising a laminated strip of material exhibiting the Faraday effect, polarizing material and photo-sensitive material so that digital signals representing tan # where # is the angle between the sun and the satellite are obtained. The slit has a central interruption so that read-out pulses having sharp leading and trailing edges are obtained. The angle may be measured twice per revolution when the azimuth angle is 0 or #.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR138668 | 1968-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1257523A true GB1257523A (en) | 1971-12-22 |
Family
ID=8645550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1257523D Expired GB1257523A (en) | 1968-02-05 | 1969-02-04 |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR1564627A (en) |
GB (1) | GB1257523A (en) |
NL (1) | NL6901656A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2197146A (en) * | 1986-11-04 | 1988-05-11 | Canon Kk | Optically detecting position of object |
GB2249678A (en) * | 1990-10-20 | 1992-05-13 | Nat Res Dev | Position measurement |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4806747A (en) * | 1988-02-19 | 1989-02-21 | The Perkin-Elmer Corporation | Optical direction of arrival sensor with cylindrical lens |
-
1968
- 1968-02-05 FR FR138668A patent/FR1564627A/fr not_active Expired
-
1969
- 1969-02-01 NL NL6901656A patent/NL6901656A/xx unknown
- 1969-02-04 GB GB1257523D patent/GB1257523A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2197146A (en) * | 1986-11-04 | 1988-05-11 | Canon Kk | Optically detecting position of object |
GB2197146B (en) * | 1986-11-04 | 1991-05-29 | Canon Kk | An encoder for detecting the displacement of an object to be measured |
US5129725A (en) * | 1986-11-04 | 1992-07-14 | Canon Kabushiki Kaisha | Method of optically detecting position of object and position detecting apparatus using the method |
GB2249678A (en) * | 1990-10-20 | 1992-05-13 | Nat Res Dev | Position measurement |
US5408323A (en) * | 1990-10-20 | 1995-04-18 | British Technology Group, Ltd. | Position fixing apparatus with radiation sensor |
GB2249678B (en) * | 1990-10-20 | 1995-05-17 | Nat Res Dev | Position fixing |
Also Published As
Publication number | Publication date |
---|---|
DE1905042A1 (en) | 1969-08-28 |
NL6901656A (en) | 1969-08-07 |
DE1905042B2 (en) | 1976-10-07 |
FR1564627A (en) | 1969-04-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |