Figure 3 | Scientific Reports

Figure 3

From: Preclinical evaluation of noncontact vital signs monitoring using real-time IR-UWB radar and factors affecting its accuracy

Figure 3

Data flow from the IR-UWB radar sensor. Radar transmits electromagnetic waves to target and receives the reflected signals. The ADC inside the signal processing unit samples and quantizes received signals to convert the analog signals to the digital signals and save it in the buffer. The recorded radar signals form radar cube, from which the target location can be estimated to extract the vital signals. The extracted vital signals are sent to the filters and processed using the fast Fourier transformation to produce RR and HR.

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