Academic Journal
Improving Data Rate Using Cyclic Shifts in an FMCW Radar System Combining Ranging and Communication.
| Title: | Improving Data Rate Using Cyclic Shifts in an FMCW Radar System Combining Ranging and Communication. |
|---|---|
| Authors: | Hataki, Haruka, Ohno, Kohei |
| Source: | Journal of Signal Processing (1342-6230); Nov2025, Vol. 29 Issue 6, p203-208, 6p |
| Subject Terms: | Bit rate, Continuous wave radar, Estimation theory, Modulation theory, Signal processing, Telecommunication channels, Comparative studies, Digital modulation |
| Abstract: | In this paper, frequency-modulated continuous wave (FMCW) radar for enabling a more comfortable traffic environment is discussed and a scheme that integrates ranging and communication is proposed. A method to increase the data rate while maintaining ranging accuracy is proposed. Data are modulated onto the sweep function of the FMCW radar. Both up-chirp and down-chirp signals are utilized for data modulation. Furthermore, multiple sweep functions are generated by applying cyclic time shifts to the sweep function. By selecting different sweep functions in accordance with the data to be modulated, a transmitted transmitting additional data bits is generated. At the receiver, the beat frequency is calculated from the reflected signal and reference signals, enabling distance measurement as in the conventional beat frequency ranging scheme. The root mean square error (RMSE) and bit error rate (BER) of the proposed scheme are evaluated through simulations and compared with those of conventional FMCW radar. The performance of the proposed scheme is better than that of the conventional scheme that modulates 1-bit data using up- and down-chirps at the same data rate. Under higher signal-to-noise ratio (SNR) conditions, the proposed scheme achieves convergence to the same RMSE as does the conventional FMCW radar without data modulation. Therefore, the proposed scheme is effective in increasing the data rate. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Signal Processing (1342-6230) is the property of Research Institute of Signal Processing, Japan 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: | Complementary Index |
| FullText | Text: Availability: 0 |
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| Header | DbId: edb DbLabel: Complementary Index An: 190835262 RelevancyScore: 1023 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 1023.09326171875 |
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| Items | – Name: Title Label: Title Group: Ti Data: Improving Data Rate Using Cyclic Shifts in an FMCW Radar System Combining Ranging and Communication. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hataki%2C+Haruka%22">Hataki, Haruka</searchLink><br /><searchLink fieldCode="AR" term="%22Ohno%2C+Kohei%22">Ohno, Kohei</searchLink> – Name: TitleSource Label: Source Group: Src Data: Journal of Signal Processing (1342-6230); Nov2025, Vol. 29 Issue 6, p203-208, 6p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Bit+rate%22">Bit rate</searchLink><br /><searchLink fieldCode="DE" term="%22Continuous+wave+radar%22">Continuous wave radar</searchLink><br /><searchLink fieldCode="DE" term="%22Estimation+theory%22">Estimation theory</searchLink><br /><searchLink fieldCode="DE" term="%22Modulation+theory%22">Modulation theory</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+processing%22">Signal processing</searchLink><br /><searchLink fieldCode="DE" term="%22Telecommunication+channels%22">Telecommunication channels</searchLink><br /><searchLink fieldCode="DE" term="%22Comparative+studies%22">Comparative studies</searchLink><br /><searchLink fieldCode="DE" term="%22Digital+modulation%22">Digital modulation</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In this paper, frequency-modulated continuous wave (FMCW) radar for enabling a more comfortable traffic environment is discussed and a scheme that integrates ranging and communication is proposed. A method to increase the data rate while maintaining ranging accuracy is proposed. Data are modulated onto the sweep function of the FMCW radar. Both up-chirp and down-chirp signals are utilized for data modulation. Furthermore, multiple sweep functions are generated by applying cyclic time shifts to the sweep function. By selecting different sweep functions in accordance with the data to be modulated, a transmitted transmitting additional data bits is generated. At the receiver, the beat frequency is calculated from the reflected signal and reference signals, enabling distance measurement as in the conventional beat frequency ranging scheme. The root mean square error (RMSE) and bit error rate (BER) of the proposed scheme are evaluated through simulations and compared with those of conventional FMCW radar. The performance of the proposed scheme is better than that of the conventional scheme that modulates 1-bit data using up- and down-chirps at the same data rate. Under higher signal-to-noise ratio (SNR) conditions, the proposed scheme achieves convergence to the same RMSE as does the conventional FMCW radar without data modulation. Therefore, the proposed scheme is effective in increasing the data rate. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Journal of Signal Processing (1342-6230) is the property of Research Institute of Signal Processing, Japan 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: Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 203 Subjects: – SubjectFull: Bit rate Type: general – SubjectFull: Continuous wave radar Type: general – SubjectFull: Estimation theory Type: general – SubjectFull: Modulation theory Type: general – SubjectFull: Signal processing Type: general – SubjectFull: Telecommunication channels Type: general – SubjectFull: Comparative studies Type: general – SubjectFull: Digital modulation Type: general Titles: – TitleFull: Improving Data Rate Using Cyclic Shifts in an FMCW Radar System Combining Ranging and Communication. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hataki, Haruka – PersonEntity: Name: NameFull: Ohno, Kohei IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 13426230 Numbering: – Type: volume Value: 29 – Type: issue Value: 6 Titles: – TitleFull: Journal of Signal Processing (1342-6230) Type: main |
| ResultId | 1 |