Hi, I'm experimenting with measuring the distance of a person with X4M06. I wrote my own algorithm with reference to X4XEPDistanceDemo.c, but here are some questions. 1. What do these codes mean? adaptive_cluttermap = adaptive_cluttermap * (1-adaptive_factor) + frame_amplitude * adaptive_factor; distance_filtered = distance * distance_filter_factor + distance_filtered * (1 - distance_filter_factor); I guess it's a simple implementation of low pass filtering, right? 2. How did you set the simple detection threshold and factor? In X4XEPDistanceDemo.c set the detection threshold as 0.005, adaptive_factor as 0.05 and distance_filter_factor as 0.1. How did you get these values??? 3. Is the X4M300 presence detection code publicly available? If so, where I can find it? 4. Finally, is there any reference code to detect distance with X4M06?