FR945468A - Système de radio-détermination de la distance ou de l'altitude - Google Patents
Système de radio-détermination de la distance ou de l'altitudeInfo
- Publication number
- FR945468A FR945468A FR945468DA FR945468A FR 945468 A FR945468 A FR 945468A FR 945468D A FR945468D A FR 945468DA FR 945468 A FR945468 A FR 945468A
- Authority
- FR
- France
- Prior art keywords
- altitude
- radio
- distance
- determination system
- determination
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US653259A US2518864A (en) | 1946-03-09 | 1946-03-09 | Frequency modulation radar system of superheterodyne type with successive intermediate-frequency signal conversions |
Publications (1)
Publication Number | Publication Date |
---|---|
FR945468A true FR945468A (fr) | 1949-05-05 |
Family
ID=24620121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR945468D Expired FR945468A (fr) | 1946-03-09 | 1947-03-08 | Système de radio-détermination de la distance ou de l'altitude |
Country Status (3)
Country | Link |
---|---|
US (1) | US2518864A (fr) |
FR (1) | FR945468A (fr) |
GB (1) | GB649025A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695404A (en) * | 1950-02-28 | 1954-11-23 | Eastern Ind Inc | Speed detector |
US2774065A (en) * | 1950-09-26 | 1956-12-11 | Karl F Ross | Radio location system |
US3217322A (en) * | 1954-01-12 | 1965-11-09 | Louis J Kabell | F.m. radar system |
US2903693A (en) * | 1954-01-13 | 1959-09-08 | Gordon S Ley | Frequency modulation filter |
US3024459A (en) * | 1955-09-17 | 1962-03-06 | Marconi Co Canada | Control of microphonic effects in continuous wave radar systems |
US3096514A (en) * | 1958-12-26 | 1963-07-02 | Raytheon Co | Moving target indicator systems |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1774493A (en) * | 1927-01-03 | 1930-08-26 | Hazen L Hoyt Jr | Double demodulation receiver |
NL70112C (fr) * | 1939-10-25 | |||
NL60039C (fr) * | 1939-12-30 |
-
1946
- 1946-03-09 US US653259A patent/US2518864A/en not_active Expired - Lifetime
-
1947
- 1947-03-08 FR FR945468D patent/FR945468A/fr not_active Expired
- 1947-03-10 GB GB6695/47A patent/GB649025A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB649025A (en) | 1951-01-17 |
US2518864A (en) | 1950-08-15 |
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