FR76413E - Frequency modulated signal detection devices such as frequency discriminators - Google Patents
Frequency modulated signal detection devices such as frequency discriminatorsInfo
- Publication number
- FR76413E FR76413E FR802354A FR802354A FR76413E FR 76413 E FR76413 E FR 76413E FR 802354 A FR802354 A FR 802354A FR 802354 A FR802354 A FR 802354A FR 76413 E FR76413 E FR 76413E
- Authority
- FR
- France
- Prior art keywords
- frequency
- modulated signal
- signal detection
- detection devices
- discriminators
- 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
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/585—Velocity or trajectory determination systems; Sense-of-movement determination systems processing the video signal in order to evaluate or display the velocity value
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR802354A FR76413E (en) | 1958-08-07 | 1959-08-07 | Frequency modulated signal detection devices such as frequency discriminators |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US753679A US3069623A (en) | 1958-08-07 | 1958-08-07 | Frequency difference detector |
FR802354A FR76413E (en) | 1958-08-07 | 1959-08-07 | Frequency modulated signal detection devices such as frequency discriminators |
Publications (1)
Publication Number | Publication Date |
---|---|
FR76413E true FR76413E (en) | 1961-10-13 |
Family
ID=26184274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR802354A Expired FR76413E (en) | 1958-08-07 | 1959-08-07 | Frequency modulated signal detection devices such as frequency discriminators |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR76413E (en) |
-
1959
- 1959-08-07 FR FR802354A patent/FR76413E/en not_active Expired
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