DE2504614A1 - Frequenzmesseinrichtung - Google Patents
FrequenzmesseinrichtungInfo
- Publication number
- DE2504614A1 DE2504614A1 DE19752504614 DE2504614A DE2504614A1 DE 2504614 A1 DE2504614 A1 DE 2504614A1 DE 19752504614 DE19752504614 DE 19752504614 DE 2504614 A DE2504614 A DE 2504614A DE 2504614 A1 DE2504614 A1 DE 2504614A1
- Authority
- DE
- Germany
- Prior art keywords
- frequency
- signal
- arrangement
- taps
- measuring device
- 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.)
- Pending
Links
- 238000005070 sampling Methods 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 description 20
- 239000000523 sample Substances 0.000 description 6
- 230000010354 integration Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 101710170230 Antimicrobial peptide 1 Proteins 0.000 description 2
- 101710170231 Antimicrobial peptide 2 Proteins 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000035559 beat frequency Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/18—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal by means of synchronous gating arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
-
- 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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
- G01S1/38—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna
- G01S1/40—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna the apparent movement of the antenna being produced by cyclic sequential energisation of fixed antennas
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6280/74A GB1489923A (en) | 1974-02-12 | 1974-02-12 | Frequency measuring arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2504614A1 true DE2504614A1 (de) | 1975-08-14 |
Family
ID=9811632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752504614 Pending DE2504614A1 (de) | 1974-02-12 | 1975-02-04 | Frequenzmesseinrichtung |
Country Status (5)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4414504A (en) * | 1980-11-05 | 1983-11-08 | Motorola Inc. | Fractional doppler counting |
| US4542470A (en) * | 1984-07-16 | 1985-09-17 | Spartanics, Ltd. | Frequency determining and lock-on system |
| US4697188A (en) * | 1985-02-13 | 1987-09-29 | American Telephone And Telegraph Company, At&T Bell Laboratories | Interference canceler with difference beam |
| WO1986006174A1 (en) * | 1985-04-13 | 1986-10-23 | Anritsu Corporation | Heterodyne-type method and apparatus for measuring signals, having means for automatically correcting the detuning |
| US5457637A (en) * | 1993-08-20 | 1995-10-10 | Texas Instruments Inc. | Flash waveform analyzer method and device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1402885A (en) * | 1972-08-03 | 1975-08-13 | Standard Telephones Cables Ltd | Doppler radio gui-ance systems |
| US3866227A (en) * | 1973-03-15 | 1975-02-11 | Rca Corp | Doppler tracker receiver |
-
1974
- 1974-02-12 GB GB6280/74A patent/GB1489923A/en not_active Expired
-
1975
- 1975-02-04 DE DE19752504614 patent/DE2504614A1/de active Pending
- 1975-02-05 CA CA219,439A patent/CA1028763A/en not_active Expired
- 1975-02-06 US US05/547,598 patent/US3977002A/en not_active Expired - Lifetime
- 1975-02-12 FR FR7504299A patent/FR2260803A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB1489923A (en) | 1977-10-26 |
| FR2260803A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-09-05 |
| US3977002A (en) | 1976-08-24 |
| CA1028763A (en) | 1978-03-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |