FR2261542A1 - Aircraft guidance system for landing strip - determines real visibility at all given points in predetermined spatial domain - Google Patents
Aircraft guidance system for landing strip - determines real visibility at all given points in predetermined spatial domainInfo
- Publication number
- FR2261542A1 FR2261542A1 FR7405788A FR7405788A FR2261542A1 FR 2261542 A1 FR2261542 A1 FR 2261542A1 FR 7405788 A FR7405788 A FR 7405788A FR 7405788 A FR7405788 A FR 7405788A FR 2261542 A1 FR2261542 A1 FR 2261542A1
- Authority
- FR
- France
- Prior art keywords
- visibility
- guidance system
- spatial domain
- landing strip
- predetermined spatial
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
- G01N21/538—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke for determining atmospheric attenuation and visibility
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Traffic Control Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7405788A FR2261542A1 (en) | 1974-02-20 | 1974-02-20 | Aircraft guidance system for landing strip - determines real visibility at all given points in predetermined spatial domain |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7405788A FR2261542A1 (en) | 1974-02-20 | 1974-02-20 | Aircraft guidance system for landing strip - determines real visibility at all given points in predetermined spatial domain |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2261542A1 true FR2261542A1 (en) | 1975-09-12 |
FR2261542B3 FR2261542B3 (fr) | 1976-11-26 |
Family
ID=9135192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7405788A Granted FR2261542A1 (en) | 1974-02-20 | 1974-02-20 | Aircraft guidance system for landing strip - determines real visibility at all given points in predetermined spatial domain |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2261542A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2370290A1 (fr) * | 1976-11-03 | 1978-06-02 | Asea Ab | Dispositif pour la mesure de la visibilite |
-
1974
- 1974-02-20 FR FR7405788A patent/FR2261542A1/fr active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2370290A1 (fr) * | 1976-11-03 | 1978-06-02 | Asea Ab | Dispositif pour la mesure de la visibilite |
Also Published As
Publication number | Publication date |
---|---|
FR2261542B3 (fr) | 1976-11-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
DJ | Final judicial decision determining the rights related to a patent |