Patent ID: 11860266
Assignee: RICHWAVE TECHNOLOGY CORP.
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 10:
11. A detection system for use to detect a life comprising:
a receiver configured to receive an echo signal comprising an in-phase component and a quadrature component, the echo signal being generated by a life;
a preprocessing circuit coupled to the receiver, and configured to perform a preprocessing procedure on the echo signal to generate a preprocessed signal; and
a processor coupled to the preprocessing circuit, and configured to generate, according to the preprocessed signal, complex conjugate data associated with the in-phase component and the quadrature component, perform a first time-domain-to-frequency-domain transform on the complex conjugate data to generate Doppler spectrogram data comprising a plurality of positive velocity energies and a plurality of negative velocity energies, generate combined Doppler spectrogram data according to the plurality of positive velocity energies and the plurality of negative velocity energies, perform a second time time-domain-to-frequency-domain transform on the combined Doppler spectrogram data to generate spectrum data, and determine whether the life is detected according to the spectrum data.