Full Waveform Calibration Technique for Millimeter-Wave Wideband FMCW Signals

HE Zhao; XU Qinghua; LIU Xuefei; ZHANG Yichi

doi:10.12338/j.issn.2096-9015.2024.0126

Volume 68 Issue 8

Aug. 2024

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Article Navigation > Metrology Science and Technology > 2024 > 68(8): 64-70

HE Zhao, XU Qinghua, LIU Xuefei, ZHANG Yichi. Full Waveform Calibration Technique for Millimeter-Wave Wideband FMCW Signals[J]. Metrology Science and Technology, 2024, 68(8): 64-70. doi: 10.12338/j.issn.2096-9015.2024.0126

Citation:

HE Zhao, XU Qinghua, LIU Xuefei, ZHANG Yichi. Full Waveform Calibration Technique for Millimeter-Wave Wideband FMCW Signals[J]. Metrology Science and Technology, 2024, 68(8): 64-70. doi: 10.12338/j.issn.2096-9015.2024.0126

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Full Waveform Calibration Technique for Millimeter-Wave Wideband FMCW Signals

doi: 10.12338/j.issn.2096-9015.2024.0126

HE Zhao^{1, 2
,},
XU Qinghua^{1, 2},
LIU Xuefei^{1, 2},
ZHANG Yichi^{1, 2
,
,}

1.
National Institute of Metrology, Beijing 100029, China
2.
Innovation Center for Advanced Traceability Technology (ICATT), Beijing 100029, China)

Received Date: 2024-04-15
Accepted Date: 2024-04-22
Rev Recd Date: 2024-06-04

Available Online: 2024-06-18

Publish Date: 2024-08-30

Abstract

Abstract

To address the calibration needs of Frequency Modulated Continuous Wave (FMCW) signal testing equipment in millimeter-wave automotive radar applications and enhance measurement capabilities for complex analog-modulated signals in millimeter-wave broadband, we developed a hybrid measurement system. This system combines a frequency-domain full waveform metrology setup with FMCW testing equipment under calibration. By conducting in-situ, synchronous measurements of custom millimeter-wave FMCW signals, we achieved calibration and performance verification of commercial instruments. We thoroughly compared the performance of different measurement methods and equipment in the typical millimeter-wave radar frequency bands of 24 GHz and 60 GHz. Experimental results demonstrate that the frequency-domain full waveform metrology method outperforms relevant commercial instruments. The FMCW chirp deviation measurements under both 200 MHz narrowband and 2 GHz wideband conditions were an order of magnitude more precise, meeting the technical requirements for calibration and performance verification.
- metrology,
- full waveform metrology,
- frequency-modulated continuous wave (FMCW),
- magnitude calibration,
- phase calibration,
- frequency-domain measurement

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References(26)

References

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