Correlation methods are typically used to measure the phase difference of the receive
echo
respective to the transmit signal as well as recover the propagation delay and therefore
the
distance to the object to be measured.
Of course, a phase difference greater than 2 π is not resolvable; for instance, 3 π or 5
π will be measured as a π radian phase difference. Therefore, depending on the
chosen modulation frequency, an artefacting phenomenon will occur where far-away
objects will appear to be much closer than in reality.
5.1.4 Zense ToF Principle
Zense DCAM710 product principle is based on range-gated imaging ToF solution, and
the sensor inside is based on Panasonic CCD sensor MN34906.
