MUMBAI, India, July 24 -- Intellectual Property India has published a patent application (202611061243 A) filed by Delhi Technological University on May 14, 2026, for Contactless Respiratory Sensing System And Method For Physiological Monitoring.
Inventors include Krishna, M Gopal; Grover, Suhani; and Dhiman, Chhavi.
The application for the patent was published on July 17, 2026, under issue no. 29/2026.
Abstract: A system (100) and method (300) for contactless physiological monitoring using radar-based Hankel Dynamic Mode Decomposition. The system (100) integrates a radar module (102) with at least one processor (104) configured to execute real-time respiratory signal extraction. The system (100) receives In-phase and Quadrature (IQ) data, determines a spatial window corresponding to a subject, and extracts a continuous phase signal via a complex conjugation operation to bypass explicit phase unwrapping. The system (100) generates a Hankel matrix representation by embedding the continuous phase signal within a sliding window to capture temporal dynamics. The system (100) extracts coherent oscillatory modes and filters specific eigenvalues to isolate respiratory components from motion artifacts. A temporal tracking operation evaluates time-frequency evolution to track non-stationary patterns. Therefore, the system (100) provides robust and computationally efficient physiological monitoring framework that enhances continuous remote healthcare operations and non-invasive physiological monitoring of a subject on resource-constrained edge devices.
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