Frequency measurement and analysis via different frequency phase synchronization fuzzy region.
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| Title: | Frequency measurement and analysis via different frequency phase synchronization fuzzy region. |
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| Authors: | DU, Baoqiang1 dubaoqiang@yeah.net, WANG, Xiang1, YAO, Dunzhi1 |
| Source: | Journal of Measurement Science & Instrumentation. Jun2026, Vol. 17 Issue 2, p219-231. 13p. |
| Subjects: | Signal frequency estimation, Frequency synthesizers, Phase-locked loops, Field programmable gate arrays, Beidou satellite navigation system |
| Abstract: | A precise frequency measurement and analysis method utilizing the concept of the different frequency phase synchronization fuzzy region is presented based on the principle of phase synchronization detection. Initially, the frequency of the measured signal was roughly estimated by using the traditional high-precision time and frequency detection technology. Subsequently, the frequency estimated was fed into a direct digital synthesizer (DDS) to generate a real-time frequency standard signal that exhibited a slight frequency deviation relative to the measured signal. The edge pulses of the different frequency phase synchronization fuzzy region served as counter switch signals, enabling the counting of both the detected signal and the real-time frequency standard signal within a specified gate time. Through subsequent data processing of the obtained values, the frequency, frequency difference, and frequency accuracy of the detected signal could be determined. Experimental results demonstrate that the system based on this method achieves a frequency stability of 10-13 at 1 s, with a frequency deviation of less than 3 Hz. Compared with traditional frequency measurement and analysis methods, this approach has many advantages, especially its fast response time of less than 1 ms, high measurement accuracy of more than 10-11 at 1 s, high integration with only one FPGA chip, and cost of less than 1 000 yuan. It is widely applied in the fields of time and frequency services and security technology of the Beidou satellite (BDS) navigation system, such as BDS pseudo-range measurement, Beidou positioning, navigation and time services, as well as precise time and frequency measurement and control, etc. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Measurement Science & Instrumentation is the property of Journal of Measurement Science & Instrumentation and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 195003979 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Frequency measurement and analysis via different frequency phase synchronization fuzzy region. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22DU%2C+Baoqiang%22">DU, Baoqiang</searchLink><relatesTo>1</relatesTo><i> dubaoqiang@yeah.net</i><br /><searchLink fieldCode="AR" term="%22WANG%2C+Xiang%22">WANG, Xiang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22YAO%2C+Dunzhi%22">YAO, Dunzhi</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Measurement+Science+%26+Instrumentation%22">Journal of Measurement Science & Instrumentation</searchLink>. Jun2026, Vol. 17 Issue 2, p219-231. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Signal+frequency+estimation%22">Signal frequency estimation</searchLink><br /><searchLink fieldCode="DE" term="%22Frequency+synthesizers%22">Frequency synthesizers</searchLink><br /><searchLink fieldCode="DE" term="%22Phase-locked+loops%22">Phase-locked loops</searchLink><br /><searchLink fieldCode="DE" term="%22Field+programmable+gate+arrays%22">Field programmable gate arrays</searchLink><br /><searchLink fieldCode="DE" term="%22Beidou+satellite+navigation+system%22">Beidou satellite navigation system</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A precise frequency measurement and analysis method utilizing the concept of the different frequency phase synchronization fuzzy region is presented based on the principle of phase synchronization detection. Initially, the frequency of the measured signal was roughly estimated by using the traditional high-precision time and frequency detection technology. Subsequently, the frequency estimated was fed into a direct digital synthesizer (DDS) to generate a real-time frequency standard signal that exhibited a slight frequency deviation relative to the measured signal. The edge pulses of the different frequency phase synchronization fuzzy region served as counter switch signals, enabling the counting of both the detected signal and the real-time frequency standard signal within a specified gate time. Through subsequent data processing of the obtained values, the frequency, frequency difference, and frequency accuracy of the detected signal could be determined. Experimental results demonstrate that the system based on this method achieves a frequency stability of 10-13 at 1 s, with a frequency deviation of less than 3 Hz. Compared with traditional frequency measurement and analysis methods, this approach has many advantages, especially its fast response time of less than 1 ms, high measurement accuracy of more than 10-11 at 1 s, high integration with only one FPGA chip, and cost of less than 1 000 yuan. It is widely applied in the fields of time and frequency services and security technology of the Beidou satellite (BDS) navigation system, such as BDS pseudo-range measurement, Beidou positioning, navigation and time services, as well as precise time and frequency measurement and control, etc. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Measurement Science & Instrumentation is the property of Journal of Measurement Science & Instrumentation and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.62756/jmsi.1674-8042.2026019 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 219 Subjects: – SubjectFull: Signal frequency estimation Type: general – SubjectFull: Frequency synthesizers Type: general – SubjectFull: Phase-locked loops Type: general – SubjectFull: Field programmable gate arrays Type: general – SubjectFull: Beidou satellite navigation system Type: general Titles: – TitleFull: Frequency measurement and analysis via different frequency phase synchronization fuzzy region. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: DU, Baoqiang – PersonEntity: Name: NameFull: WANG, Xiang – PersonEntity: Name: NameFull: YAO, Dunzhi IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 16748042 Numbering: – Type: volume Value: 17 – Type: issue Value: 2 Titles: – TitleFull: Journal of Measurement Science & Instrumentation Type: main |
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