CN102435867A - Calibrating device for measuring accuracy of remote frequency-carrier phase noise - Google Patents
Calibrating device for measuring accuracy of remote frequency-carrier phase noise Download PDFInfo
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- CN102435867A CN102435867A CN2011103221341A CN201110322134A CN102435867A CN 102435867 A CN102435867 A CN 102435867A CN 2011103221341 A CN2011103221341 A CN 2011103221341A CN 201110322134 A CN201110322134 A CN 201110322134A CN 102435867 A CN102435867 A CN 102435867A
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Abstract
The invention discloses a calibrating device for measuring accuracy of a remote frequency-carrier phase noise. The calibrating device comprises a reference source (1), a to-be-measured source (7), a phase noise measuring device (8), an adder (2), a broadband noise source (3), a broadband amplifier (4), a filter set (5), and an attenuator set (6). Through construction of the broadband noise source and based on the noise characteristics of the broadband noise source in a remote frequency-carrier scope, the accuracy of a measuring result of the phase noise is calibrated, thereby overcoming the defects of a traditional comparison measuring method and tracing the accuracy of the measuring result of phase noise.
Description
Technical field
The present invention relates to a kind of calibrating installation, the calibrating installation of particularly a kind of carrier frequency phase noise measurement far away accuracy.
Background technology
Phase noise measurement device in the market mainly comprises HP3047A, HP3048A, E5500 series and the PN9000 etc. of introduction, and the composition of these devices mainly comprises phase-sensitive detector, phase-locked loop, low noise amplifier, data acquisition and computing machine.Can calibrate its part index number/examine and determine according to national military standard GJB/G3414-98 " phase noise measuring system vertification regulation ", but can't calibrate/examine and determine the phase noise measurement result precision of phase noise measurement system.Since high stability crystal oscillator and atomic frequency standard be widely used in spaceborne electronic equipment the time base, radar microwave link local oscillator and communication electronic system the time basic, its carrier frequency phase noise characteristic far away especially receives publicity.So when using the phase noise measurement system that it is measured, the measurement result accuracy has strict requirement.The reference source frequency does
f 0, the fourier analysis frequency range of carrier frequency far away is 1kHz～10%
f 0Domestic calibration for the phase noise measurement result precision at present can only realize the value work in unity of phase noise through the comparison of many phase noise measurement systems.The problem that this method exists is: 1, do not have the measurement to carrier frequency phase noise measurement result precision far away; 2, the matching measurement precision is not high, and uncertainty of measurement is 3dB; 3, can not provide measurement result immediately, after many comparisons of needs, add up, just can obtain a result.
Summary of the invention
The object of the invention is to provide the calibrating installation of a kind of carrier frequency phase noise measurement far away accuracy, solves in the past that device is not high to measurement, the matching measurement precision of carrier frequency phase noise measurement result precision far away, uncertainty of measurement is 3dB, the problem that can not provide measurement result immediately.
The calibrating installation of a kind of carrier frequency phase noise measurement far away accuracy comprises: reference source, source to be measured, phase noise measurement device also comprise: totalizer, broadband noise source, broad band amplifier, filter combination, attenuator combination.
The reference source output terminal is connected with totalizer reference edge radio-frequency cable; The broadband noise source output terminal is connected with broad band amplifier input end radio-frequency cable; The broad band amplifier output terminal is connected with filter combination input end radio-frequency cable; The filter combination output terminal is connected with attenuator combinatorial input end-fire frequency cable, and attenuator array output end is connected with totalizer noise end-fire frequency cable, and adder output is connected with phase noise measurement device local oscillator end-fire frequency cable; Source output terminal to be measured is connected with phase noise measurement device radio-frequency head radio-frequency cable, and the voltage-controlled output terminal of phase noise measurement device is connected with the voltage-controlled input end radio-frequency cable of reference source.
During work, the output frequency of reference source does
f 0, the broadband noise source is the white noise sound source, its bandwidth is (1 ± 10%)
f 0, the flatness in the bandwidth is the key of the final calibration accuracy of decision, the broadband noise source obtains the noise of enough power output through behind the broad band amplifier, is ± 10% through filter combination intercepting bandwidth then
f 0Noise in the scope, the decay through the attenuator combination obtains suitable noise power output again, the noise power of its output must be through accurate demarcation, with it as given value
1Totalizer is modulated the noise source of certain bandwidth of having of attenuator array output and power to the sideband noise of reference source, the sideband noise level of reference source does
1Totalizer is output as through the reference source after the noise modulated.Adopt the phase noise measurement device to measuring through the reference source and the source to be measured of the modulation of broadband noise source, measurement result is the noise sideband measured value of reference source
2, in the phase noise measurement process, carrier frequency measurement result precision calibration result far away does
Overcome the deficiency of comparing and measure in the transmission source of present employing based on the calibration steps of the carrier frequency phase noise measurement far away accuracy in broadband noise source, it has the following advantages: can realize that carrier frequency far away analyzes the accuracy measurement in the Fu Shi frequency range; Precision improves, and uncertainty can be controlled in the 1dB; Can provide the error of measurement result immediately.
Description of drawings
The synoptic diagram of the calibrating installation of a kind of carrier frequency phase noise measurement far away of Fig. 1 accuracy.
1. reference source 2. totalizers 3. broadband noise sources 4. broad band amplifiers, 5. filter combinations, 6. attenuators combination
7. source to be measured 8. phase noise measurement devices.
Embodiment
The calibrating installation of a kind of carrier frequency phase noise measurement far away accuracy comprises: reference source 1, source to be measured 7, phase noise measurement device 8 also comprise: totalizer 2, broadband noise source 3, broad band amplifier 4, filter combination 5, attenuator combination 6.
Reference source 1 output terminal is connected with totalizer 2 reference edge radio-frequency cables; Broadband noise source 3 output terminals are connected with broad band amplifier 4 input end radio-frequency cables; Broad band amplifier 4 output terminals are connected with filter combination 5 input end radio-frequency cables; Filter combination 5 output terminals make up 6 input end radio-frequency cables with attenuator and are connected, and attenuator makes up 6 output terminals and is connected with totalizer 2 noise end-fires frequency cable, and totalizer 2 output terminals are connected with phase noise measurement device 8 local oscillator end-fires frequency cable; Source to be measured 7 output terminals are connected with phase noise measurement device 8 radio-frequency head radio-frequency cables, and phase noise measurement device 8 voltage-controlled output terminals are connected with reference source 1 voltage-controlled input end radio-frequency cable.
During work, the output frequency of reference source 1 does
f 0, broadband noise source 3 is the white noise sound source, its bandwidth is 1 ± 10%
f 0, the flatness in the bandwidth is the key of the final calibration accuracy of decision, broadband noise source 3 obtains the noise of enough power output through behind the broad band amplifier 4, is ± 10% through filter combination 5 intercepting bandwidth then
f 0Noise in the scope, the decay through attenuator combination 6 obtains suitable noise power output again, the noise power of its output must be through accurate demarcation, with it as given value
1Totalizer 2 is modulated the noise source with certain bandwidth and power of attenuator combination 6 outputs to the sideband noise of reference source 1, the sideband noise level of reference source 1 does
1Totalizer 2 is output as through the reference source 1 after the noise modulated.Adopt 8 pairs of reference sources 1 through 3 modulation of broadband noise source of phase noise measurement device to measure with source 7 to be measured, measurement result is the noise sideband measured value of reference source 1
2, in the phase noise measurement process, carrier frequency measurement result precision calibration result far away does
Claims (1)
1. the calibrating installation of a carrier frequency phase noise measurement far away accuracy; Comprise: reference source (1), source to be measured (7), phase noise measurement device (8) is characterized in that also comprising: totalizer (2), broadband noise source (3), broad band amplifier (4), filter combination (5), attenuator combination (6);
Reference source (1) output terminal is connected with totalizer (2) reference edge radio-frequency cable; Broadband noise source (3) output terminal is connected with broad band amplifier (4) input end radio-frequency cable; Broad band amplifier (4) output terminal is connected with filter combination (5) input end radio-frequency cable; Filter combination (5) output terminal is connected with attenuator combination (6) input end radio-frequency cable; Attenuator combination (6) output terminal is connected with totalizer (2) noise end-fire frequency cable; Totalizer (2) output terminal is connected with phase noise measurement device (8) local oscillator end-fire frequency cable, and source to be measured (7) output terminal is connected with phase noise measurement device (8) radio-frequency head radio-frequency cable, and the voltage-controlled output terminal of phase noise measurement device (8) is connected with the voltage-controlled input end radio-frequency cable of reference source (1);
During work, the output frequency of reference source (1) does
f 0, broadband noise source (3) are the white noise sound source, its bandwidth is (1 ± 10%)
f 0, the flatness in the bandwidth is the key of the final calibration accuracy of decision, behind broadband noise source (3) the process broad band amplifiers (4), obtains the noise of enough power output, is ± 10% through filter combination (5) intercepting bandwidth then
f 0Noise in the scope, the decay through attenuator combination (6) obtains suitable noise power output again, the noise power of its output must be through accurate demarcation, with it as given value
1Totalizer (2) is modulated the noise source with certain bandwidth and power of attenuator combination (6) output to the sideband noise of reference source (1), the sideband noise level of reference source (1) does
1Totalizer (2) is output as through the reference source (1) after the noise modulated; Adopt phase noise measurement device (8) to measuring through reference source (1) and source to be measured (7) of broadband noise source (3) modulation, measurement result is the noise sideband measured value of reference source (1)
2, in the phase noise measurement process, carrier frequency measurement result precision calibration result far away does
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103221341A CN102435867A (en) | 2011-10-21 | 2011-10-21 | Calibrating device for measuring accuracy of remote frequency-carrier phase noise |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103221341A CN102435867A (en) | 2011-10-21 | 2011-10-21 | Calibrating device for measuring accuracy of remote frequency-carrier phase noise |
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| CN102435867A true CN102435867A (en) | 2012-05-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778663A (en) * | 2012-08-02 | 2012-11-14 | 中国航天科工集团第二研究院二〇三所 | Phase noise calibrating device based on photoelectric fusion technique |
| CN106501742A (en) * | 2016-09-28 | 2017-03-15 | 北京无线电计量测试研究所 | A kind of microwave and millimeter wave phase noise standard set-up based on photoelectric fusion technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5172064A (en) * | 1991-12-02 | 1992-12-15 | The United States Of America As Represented By The Secretary Of Commerce | Calibration system for determining the accuracy of phase modulation and amplitude modulation noise measurement apparatus |
| CN201402291Y (en) * | 2009-04-21 | 2010-02-10 | 西安华腾微波有限责任公司 | Sideband noise testing device |
-
2011
- 2011-10-21 CN CN2011103221341A patent/CN102435867A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5172064A (en) * | 1991-12-02 | 1992-12-15 | The United States Of America As Represented By The Secretary Of Commerce | Calibration system for determining the accuracy of phase modulation and amplitude modulation noise measurement apparatus |
| CN201402291Y (en) * | 2009-04-21 | 2010-02-10 | 西安华腾微波有限责任公司 | Sideband noise testing device |
Non-Patent Citations (4)
| Title |
|---|
| F. L. WALLS: "Accuracy Model for Phase Noise Measurements", 《PROCEEDINGS OF TWENTY-FIRST ANNUAL PRECISE TIME AND TIME INTERVAL (PTTI) APPLICATIONS AND PLANNING MEETING》 * |
| FRED L. WALLS: "Secondary standard for PM and AM noise at 5, 10, and 100 MHz", 《IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT》 * |
| 何霞: "相位噪声测量方法及E5503B***量值溯源", 《通信对抗》 * |
| 阎栋梁: "相位噪声测量***能力验证中发现的问题", 《中国计量》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102778663A (en) * | 2012-08-02 | 2012-11-14 | 中国航天科工集团第二研究院二〇三所 | Phase noise calibrating device based on photoelectric fusion technique |
| CN106501742A (en) * | 2016-09-28 | 2017-03-15 | 北京无线电计量测试研究所 | A kind of microwave and millimeter wave phase noise standard set-up based on photoelectric fusion technique |
| CN106501742B (en) * | 2016-09-28 | 2019-03-08 | 北京无线电计量测试研究所 | A kind of microwave and millimeter wave phase noise standard set-up based on photoelectric fusion technique |
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Application publication date: 20120502 |