Key result
Corrections were made to errors found in a previously published human vital signs detection model based on FMCW radar.
This comment corrects theoretical errors in a previously published FMCW radar-based human vital signs detection model to ensure accurate theoretical derivation and reader understanding.
In the above article, an innovative methodology called symplectic geometry variational mode decomposition (SG-VMD) was proposed by the authors to separate phase signals of frequency modulated continuous wave (FMCW) radar echoes, and thus achieved high-precision extraction of human heart rate in interference environments. However, some errors about the human vital signs detection model based on FMCW radar have been found, which will not only affect the subsequent theoretical derivation of the article, but also affect readers’ understanding. Therefore, this comment has made necessary corrections to these errors.
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Wan et al. (2025) conducted a letter in Human vital signs detection. Corrections were made to errors found in a previously published human vital signs detection model based on FMCW radar.
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