IT7848945A0 - Perfezionamento nei sistemi di traslazione di frequenza per segnali modulati in frequenza - Google Patents
Perfezionamento nei sistemi di traslazione di frequenza per segnali modulati in frequenzaInfo
- Publication number
- IT7848945A0 IT7848945A0 IT7848945A IT4894578A IT7848945A0 IT 7848945 A0 IT7848945 A0 IT 7848945A0 IT 7848945 A IT7848945 A IT 7848945A IT 4894578 A IT4894578 A IT 4894578A IT 7848945 A0 IT7848945 A0 IT 7848945A0
- Authority
- IT
- Italy
- Prior art keywords
- frequency
- improvement
- modulated signals
- transfer systems
- frequency modulated
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4052—Means for monitoring or calibrating by simulation of echoes
- G01S7/4056—Means for monitoring or calibrating by simulation of echoes specially adapted to FMCW
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT48945/78A IT1104120B (it) | 1978-04-18 | 1978-04-18 | Perfezionamento nei sistemi di traslazione di frequenza per segnali modulati in frequenza |
EP79830008A EP0005127A3 (en) | 1978-04-18 | 1979-04-11 | Improvement in systems of frequency translation of frequency-modulated signals |
US06/030,267 US4293825A (en) | 1978-04-18 | 1979-04-13 | Frequency-shifting systems for frequency modulated signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT48945/78A IT1104120B (it) | 1978-04-18 | 1978-04-18 | Perfezionamento nei sistemi di traslazione di frequenza per segnali modulati in frequenza |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7848945A0 true IT7848945A0 (it) | 1978-04-18 |
IT1104120B IT1104120B (it) | 1985-10-14 |
Family
ID=11269125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT48945/78A IT1104120B (it) | 1978-04-18 | 1978-04-18 | Perfezionamento nei sistemi di traslazione di frequenza per segnali modulati in frequenza |
Country Status (3)
Country | Link |
---|---|
US (1) | US4293825A (it) |
EP (1) | EP0005127A3 (it) |
IT (1) | IT1104120B (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2569857B1 (fr) * | 1982-10-13 | 1988-05-13 | Trt Telecom Radio Electr | Simulateur de retard variable electriquement pour appareil de mesure de distance a onde continue modulee en frequence |
DE3309399A1 (de) * | 1983-03-16 | 1984-09-20 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Diodenmischer mit vorspannungssteuerung sowie dessen anwendung |
US4503562A (en) * | 1983-03-29 | 1985-03-05 | Rockwell International Corporation | Maintaining frequency accuracy in single sideband repeaters |
DE3613536A1 (de) * | 1986-04-22 | 1987-10-29 | Ant Nachrichtentech | Verfahren zur regelung eines einseitenband-aufwaertsmischers sowie anordnung hierzu |
JPH0195810A (ja) * | 1987-10-07 | 1989-04-13 | Sumitomo Light Metal Ind Ltd | 圧延機における板厚制御方法 |
US6150976A (en) * | 1998-08-12 | 2000-11-21 | Aai Corporation | Synthesis of overlapping chirp waveforms |
US7409192B2 (en) * | 2005-07-21 | 2008-08-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for frequency synthesis in direct-conversion transmitters |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3249886A (en) * | 1963-11-27 | 1966-05-03 | Gen Time Corp | Frequency multiplying synchronous oscillator controlled by time overlap between synchronous pulses and the oscillator output |
US3471858A (en) * | 1968-10-30 | 1969-10-07 | Nasa | Dynamic doppler simulator |
US3600699A (en) * | 1969-08-21 | 1971-08-17 | Rca Corp | Frequency synthesizer having a plurality of cascaded phase locked loops |
FR2066885A1 (it) * | 1969-10-24 | 1971-08-13 | Thomson Csf | |
US3691394A (en) * | 1971-08-25 | 1972-09-12 | Spectral Dynamics Corp | Frequency band shifter |
US4035833A (en) * | 1975-12-01 | 1977-07-12 | Ilc Data Device Corporation | Method and apparatus for adjusting the output frequency of a frequency source to a very high degree of precision |
-
1978
- 1978-04-18 IT IT48945/78A patent/IT1104120B/it active
-
1979
- 1979-04-11 EP EP79830008A patent/EP0005127A3/en not_active Withdrawn
- 1979-04-13 US US06/030,267 patent/US4293825A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0005127A2 (en) | 1979-10-31 |
EP0005127A3 (en) | 1979-11-28 |
IT1104120B (it) | 1985-10-14 |
US4293825A (en) | 1981-10-06 |
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