ZA847911B - Apparatus for compensating non-linearities in frequency-modulated signal - Google Patents

Apparatus for compensating non-linearities in frequency-modulated signal

Info

Publication number
ZA847911B
ZA847911B ZA847911A ZA847911A ZA847911B ZA 847911 B ZA847911 B ZA 847911B ZA 847911 A ZA847911 A ZA 847911A ZA 847911 A ZA847911 A ZA 847911A ZA 847911 B ZA847911 B ZA 847911B
Authority
ZA
South Africa
Prior art keywords
linearities
frequency
modulated signal
compensating non
compensating
Prior art date
Application number
ZA847911A
Other languages
English (en)
Inventor
Anton Nysen Paul
Original Assignee
X-Cyte, Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by X-Cyte, Inc. filed Critical X-Cyte, Inc.
Publication of ZA847911B publication Critical patent/ZA847911B/xx

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
    • 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)
ZA847911A 1984-10-09 1984-10-09 Apparatus for compensating non-linearities in frequency-modulated signal ZA847911B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08425499A GB2165425B (en) 1984-10-09 1984-10-09 Signalling system

Publications (1)

Publication Number Publication Date
ZA847911B true ZA847911B (en) 1985-04-10

Family

ID=10567927

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA847911A ZA847911B (en) 1984-10-09 1984-10-09 Apparatus for compensating non-linearities in frequency-modulated signal

Country Status (5)

Country Link
JP (1) JPS61103361A (ja)
AU (1) AU568157B2 (ja)
DE (1) DE3438053A1 (ja)
GB (1) GB2165425B (ja)
ZA (1) ZA847911B (ja)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
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
US5986382A (en) 1997-08-18 1999-11-16 X-Cyte, Inc. Surface acoustic wave transponder configuration
US6060815A (en) 1997-08-18 2000-05-09 X-Cyte, Inc. Frequency mixing passive transponder
US6114971A (en) 1997-08-18 2000-09-05 X-Cyte, Inc. Frequency hopping spread spectrum passive acoustic wave identification device
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
CA3045935A1 (en) 2016-12-14 2018-06-21 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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
AU3400484A (en) 1986-04-17
GB8425499D0 (en) 1984-11-14
AU568157B2 (en) 1987-12-17
GB2165425B (en) 1988-08-24
DE3438053A1 (de) 1986-04-24
GB2165425A (en) 1986-04-09
DE3438053C2 (ja) 1988-08-11
JPS61103361A (ja) 1986-05-21
JPH0448021B2 (ja) 1992-08-05

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