JPH0448021B2 - - Google Patents
Info
- Publication number
- JPH0448021B2 JPH0448021B2 JP59225069A JP22506984A JPH0448021B2 JP H0448021 B2 JPH0448021 B2 JP H0448021B2 JP 59225069 A JP59225069 A JP 59225069A JP 22506984 A JP22506984 A JP 22506984A JP H0448021 B2 JPH0448021 B2 JP H0448021B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- frequency
- sampling
- laser beam
- transponder
- 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 - Lifetime
Links
- 238000005070 sampling Methods 0.000 claims description 27
- 230000004044 response Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- 230000003750 conditioning effect Effects 0.000 claims 3
- 230000003287 optical effect Effects 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000011328 necessary treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 14
- 230000003111 delayed effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- UYLYBEXRJGPQSH-UHFFFAOYSA-N sodium;oxido(dioxo)niobium Chemical compound [Na+].[O-][Nb](=O)=O UYLYBEXRJGPQSH-UHFFFAOYSA-N 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
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
- 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
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
- G01S7/4008—Means for monitoring or calibrating of parts of a radar system of transmitters
-
- 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
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B23/00—Generation of oscillations periodically swept over a predetermined frequency range
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/08—Modifications of modulator to linearise modulation, e.g. by feedback, and clearly applicable to more than one type of modulator
-
- 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
- G01S1/70—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 electromagnetic waves other than radio waves
- G01S1/703—Details
- G01S1/7032—Transmitters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
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)
- Facsimile Scanning Arrangements (AREA)
- Fax Reproducing Arrangements (AREA)
- Facsimile Image Signal Circuits (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08425499A GB2165425B (en) | 1984-10-09 | 1984-10-09 | Signalling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61103361A JPS61103361A (ja) | 1986-05-21 |
| JPH0448021B2 true JPH0448021B2 (enrdf_load_stackoverflow) | 1992-08-05 |
Family
ID=10567927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59225069A Granted JPS61103361A (ja) | 1984-10-09 | 1984-10-25 | 周波数変調信号中の非直線性を補償する装置 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS61103361A (enrdf_load_stackoverflow) |
| AU (1) | AU568157B2 (enrdf_load_stackoverflow) |
| DE (1) | DE3438053A1 (enrdf_load_stackoverflow) |
| GB (1) | GB2165425B (enrdf_load_stackoverflow) |
| ZA (1) | ZA847911B (enrdf_load_stackoverflow) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4739328A (en) * | 1986-07-14 | 1988-04-19 | Amtech Corporation | System for identifying particular objects |
| DE4138050A1 (de) * | 1991-11-19 | 1993-05-27 | Siemens Matsushita Components | Identifikationssystem zur verkehrsinformationserkennung |
| DE4310531C2 (de) * | 1993-03-31 | 1997-02-13 | Preh Elektro Feinmechanik | Einrichtung zur Informationsübertragung im Kraftfahrzeugverkehr |
| DE19533123C2 (de) * | 1995-09-07 | 1998-05-28 | Siemens Ag | Signalgenerator zur Erzeugung eines linear frequenzmodulierten Signals |
| US6052080A (en) * | 1995-09-07 | 2000-04-18 | Siemens Aktiengesellschaft | Rangefinder |
| US6107910A (en) | 1996-11-29 | 2000-08-22 | X-Cyte, Inc. | Dual mode transmitter/receiver and decoder for RF transponder tags |
| US6278398B1 (en) | 1997-02-28 | 2001-08-21 | Siemens Aktiengesellschaft | Sensor system operating method and a sensor system |
| US6208062B1 (en) | 1997-08-18 | 2001-03-27 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
| US6114971A (en) | 1997-08-18 | 2000-09-05 | X-Cyte, Inc. | Frequency hopping spread spectrum passive acoustic wave identification device |
| US6060815A (en) | 1997-08-18 | 2000-05-09 | X-Cyte, Inc. | Frequency mixing passive transponder |
| US5986382A (en) | 1997-08-18 | 1999-11-16 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
| DE19835232C1 (de) * | 1998-08-04 | 2000-04-20 | Siemens Ag | Vorrichtung und Verfahren zur kontinuierlichen Frequenzmodulation |
| DE19911369C2 (de) | 1999-03-15 | 2003-04-03 | Nanotron Ges Fuer Mikrotechnik | Oberflächen-Wellen-Wandler-Einrichtung sowie Identifikationssystem hiermit |
| US6317074B1 (en) * | 2000-06-15 | 2001-11-13 | Alliant Techsystems Inc. | High range resolution radar through non-uniform sampling |
| GB2557637B (en) * | 2016-12-14 | 2022-06-22 | Bae Systems Plc | Variable frequency oscillator circuits and methods of generating an oscillating signal of a desired frequency |
| US10931231B2 (en) | 2016-12-14 | 2021-02-23 | Bae Systems Plc | Variable frequency oscillator circuits and methods of generating an oscillating signal of a desired frequency |
| EP3531162B1 (en) * | 2018-02-27 | 2024-01-17 | NXP USA, Inc. | Chirp linearity detector for radar |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3706094A (en) * | 1970-02-26 | 1972-12-12 | Peter Harold Cole | Electronic surveillance system |
| US4044355A (en) * | 1973-11-20 | 1977-08-23 | Saab-Scania Aktiebolag | Measurement of contents of tanks etc. with microwave radiations |
| GB1500289A (en) * | 1974-06-03 | 1978-02-08 | Rca Corp | Homodyne communication system |
| US4059831A (en) * | 1975-10-06 | 1977-11-22 | Northwestern University | Passive transponders using acoustic surface wave devices |
| US4106020A (en) * | 1977-07-21 | 1978-08-08 | Rca Corporation | FM-CW Radar ranging system |
| US4523890A (en) * | 1983-10-19 | 1985-06-18 | General Motors Corporation | End seal for turbine blade base |
| AU564844B2 (en) * | 1984-10-09 | 1987-08-27 | X-Cyte Inc. | Saw transponder |
-
1984
- 1984-10-08 AU AU34004/84A patent/AU568157B2/en not_active Ceased
- 1984-10-09 GB GB08425499A patent/GB2165425B/en not_active Expired
- 1984-10-09 ZA ZA847911A patent/ZA847911B/xx unknown
- 1984-10-17 DE DE19843438053 patent/DE3438053A1/de active Granted
- 1984-10-25 JP JP59225069A patent/JPS61103361A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| AU3400484A (en) | 1986-04-17 |
| GB2165425B (en) | 1988-08-24 |
| GB8425499D0 (en) | 1984-11-14 |
| AU568157B2 (en) | 1987-12-17 |
| GB2165425A (en) | 1986-04-09 |
| JPS61103361A (ja) | 1986-05-21 |
| DE3438053A1 (de) | 1986-04-24 |
| DE3438053C2 (enrdf_load_stackoverflow) | 1988-08-11 |
| ZA847911B (en) | 1985-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |