Hi Everyone,
I just wanted to clarify what I am getting from the Chirp Library.
Basically I understand the chip emits an ultrasonic centered chirp and receives back the echo. If the object is far away, the delay between the two waves (i.e emitted and received) can be quite significant. However, as most use cases I assume revolve around short ranges, the echo can be received whilst the initial chirp has not yet fully been emitted.
When calling : ch_get_amplitude_data() I get an array of amplitudes which should correspond to the received echo not emitted is this correct ?
In light of this I have two questions :
1 - Is it possible to get the array of the original "emitted" wave (which must be hardcoded somewhere no ?)? (For deconvolution purposes for instance)
2 - What is the sampling rate of the array of amplitudes I have ?
Thanks in advance !