Hello,
I am currently working intensively on the subject of radar sensors.
My intention is to track vital parameters (heart and breathing rate). The people/objects can move slightly. The sensor is to be installed in a room in a waterproof and dustproof housing. It could be that metal distorts the signal.
The distance to the object is 0.2 meters up to 4-5 meters. Most of the time, the sensor is approx. 0.5 m away from the object (area around 0,2 m^2).
The heart rate to be measured is, I estimate, a maximum of 120 BPM and a minimum of 40 BPM.
Which sensor is best to choose? And what wavelength range should you choose? 60 Ghz or 77 GHz?
In this post I found the statement: "As per the specification, 60GHz needs to be used for Indoor application. 77GHz is used for automotive application".(Source: https://e2e.ti.com/support/sensors-group/sensors/f/sensors-forum/1315940/iwr6843-iwr6843/5011863?tisearch=e2e-sitesearch&keymatch=vital#5011863)
I always thought that 77 ghz is more accurate than 60 ghz, precisely because the bandwidth for all sensors is approx. 4 ghz. accordingly, i am now somewhat at a loss.
It would be best if the sensor is very, very accurate.
It would be very advantageous if software already exists for reading out the vital parameters, preferably as Python code. However, to install a standalone software is also not a problem, regardless of the operating system.
Which sensor fulfills all requirements, size unintended, which sensor is relatively accurate here?
I have already invested many hours searching,but not followed the development of TI sensors so closely that it would be easy for me to make a selection here
Thanks in advance!
Best regards
