WO2001028099A3 - Master frequency generator - Google Patents

Master frequency generator Download PDF

Info

Publication number
WO2001028099A3
WO2001028099A3 PCT/US2000/040622 US0040622W WO0128099A3 WO 2001028099 A3 WO2001028099 A3 WO 2001028099A3 US 0040622 W US0040622 W US 0040622W WO 0128099 A3 WO0128099 A3 WO 0128099A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequencies
tones
spectral purity
frequency generator
transmit
Prior art date
Application number
PCT/US2000/040622
Other languages
French (fr)
Other versions
WO2001028099A2 (en
Inventor
Michael Koechlin
Original Assignee
Lockheed Corp
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 Lockheed Corp filed Critical Lockheed Corp
Priority to EP00991708A priority Critical patent/EP1208646B1/en
Priority to AU34367/01A priority patent/AU3436701A/en
Priority to DE60006826T priority patent/DE60006826T2/en
Publication of WO2001028099A2 publication Critical patent/WO2001028099A2/en
Publication of WO2001028099A3 publication Critical patent/WO2001028099A3/en

Links

Classifications

    • 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
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency

Abstract

A system is provided for generating multiple frequencies in a specified frequency band, with a specified step size between frequencies, in which the spectral purity of the frequencies is assured. The switching speed between frequencies is very fast, limited only by the speed of the switches used. In one embodiment, only five tones are generated as the base for the rest of the synthesis, in which the relationship of the five tones is f0+/-1/8 f0 and +/-1/16 f0. The subject system in one embodiment, utilizes a channel synthesizer and a Doppler offset synthesizer which may be utilized in air defense systems for generating the transmit channels to be able to permit a missile seeker to transmit a signal at the appropriate frequency. In one embodiment, spectral purity is achieved by providing a number of stages of up converting, expanding, and dividing down of an input signal.
PCT/US2000/040622 1999-08-23 2000-08-10 Master frequency generator WO2001028099A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00991708A EP1208646B1 (en) 1999-08-23 2000-08-10 Master frequency generator
AU34367/01A AU3436701A (en) 1999-08-23 2000-08-10 Master frequency generator
DE60006826T DE60006826T2 (en) 1999-08-23 2000-08-10 MASTER FREQUENCY GENERATOR

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/379,645 1999-08-23
US09/379,645 US6295020B1 (en) 1999-08-23 1999-08-23 Master frequency generator

Publications (2)

Publication Number Publication Date
WO2001028099A2 WO2001028099A2 (en) 2001-04-19
WO2001028099A3 true WO2001028099A3 (en) 2001-10-18

Family

ID=23498092

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/040622 WO2001028099A2 (en) 1999-08-23 2000-08-10 Master frequency generator

Country Status (5)

Country Link
US (1) US6295020B1 (en)
EP (1) EP1208646B1 (en)
AU (1) AU3436701A (en)
DE (1) DE60006826T2 (en)
WO (1) WO2001028099A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6184817B1 (en) * 1999-08-23 2001-02-06 Lockheed Martin Corporation Master frequency generator
US6806746B1 (en) * 2003-07-31 2004-10-19 Agilent Technologies, Inc. Direct frequency synthesizer for offset loop synthesizer
KR20050069297A (en) * 2003-12-31 2005-07-05 삼성전자주식회사 Frequency generation apparatus and method for data transmission
US7528764B2 (en) * 2004-09-14 2009-05-05 Bae Systems Information And Electronic Systems Integration Inc. Through the wall ranging with triangulation using multiple spaced apart radars
US7355545B2 (en) * 2004-11-02 2008-04-08 Bae Systems Information And Electronic Systems Integration Inc. Through the wall ranging with triangulation using multiple spaced apart radars
DE102006017247A1 (en) 2006-04-12 2007-10-18 JOH. WINKLHOFER & SÖHNE GMBH & Co. KG Sprocket and timing chain drive to compensate for dynamic loads
US9081094B2 (en) 2012-02-22 2015-07-14 Honeywell International Inc. Aircraft radar altimeter structure
US8866667B2 (en) * 2012-02-22 2014-10-21 Honeywell International Inc. High sensitivity single antenna FMCW radar
US9297885B2 (en) 2012-07-27 2016-03-29 Honeywell International Inc. Method of system compensation to reduce the effects of self interference in frequency modulated continuous wave altimeter systems
US10447409B2 (en) * 2013-06-21 2019-10-15 Northrop Grumman Systems Corporation Optical channelizer for W-band detection
US9660605B2 (en) 2014-06-12 2017-05-23 Honeywell International Inc. Variable delay line using variable capacitors in a maximally flat time delay filter
US10018716B2 (en) 2014-06-26 2018-07-10 Honeywell International Inc. Systems and methods for calibration and optimization of frequency modulated continuous wave radar altimeters using adjustable self-interference cancellation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725786A (en) * 1984-07-26 1988-02-16 Comstron Corporation Full-octave direct frequency synthesizer
US5166629A (en) * 1991-04-26 1992-11-24 Westinghouse Electric Corp. Direct frequency synthesizer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1605477A (en) * 1960-07-08 1976-12-31
US4135189A (en) * 1964-01-09 1979-01-16 Compagnie Generale De Telegraphie Sans Fil Random frequency radar system
US4527161A (en) * 1981-09-08 1985-07-02 The United States Of America As Represented By The Secretary Of The Navy 3D Imaging with stepped frequency waveforms and monopulse processing
US4739186A (en) * 1986-08-18 1988-04-19 Hughes Aircraft Company Frequency-selectable pulsed-sinusoid generation system
US5745075A (en) * 1996-06-05 1998-04-28 Trimble Navigation Limited Multi-tone DGPS beacon transmitter and receiver
US6184817B1 (en) 1999-08-23 2001-02-06 Lockheed Martin Corporation Master frequency generator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725786A (en) * 1984-07-26 1988-02-16 Comstron Corporation Full-octave direct frequency synthesizer
US5166629A (en) * 1991-04-26 1992-11-24 Westinghouse Electric Corp. Direct frequency synthesizer

Also Published As

Publication number Publication date
WO2001028099A2 (en) 2001-04-19
DE60006826D1 (en) 2004-01-08
DE60006826T2 (en) 2004-10-07
EP1208646B1 (en) 2003-11-26
US6295020B1 (en) 2001-09-25
AU3436701A (en) 2001-04-23
EP1208646A2 (en) 2002-05-29

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