Hi Guys,
I'd like to use multiple IWR1642 radars in a room for people counting. For example, assuming the room is a rectangle, I put radar A at Point (0, 0) facing north, B at (2, 0) facing northwest, and C, D etc. I'll gather each radar's data in a PC by socket communication, and convert these data to a universal Cartesian coordinate (equal to A's coordinate in this case) and merge them together.
My question is related to the azimuth angle. For B, there are two ways to do the coordinate conversion:
a. taking azimuth angle as 45 degree, it is just horizontal movement for B's coordinate system respect to A.
b. taking azimuth angle as 0 degree, it is horizontal movement plus 45 degree rotation for B's coordinate system respect to A.
Q1. Which one is the correct or good (for the accuracy of the result) way?
(I've tried both, but I can't tell which one is good, as the test environment changes all the time. But the first one is a bit of easy confusing or misunderstanding, considering B may be put at any place in any angle.)
As it illustrates in the pplcount_user_guide.pdf, when a radar sits in the south and faces northwest,
a. if the azimuth angle is set to -45 degree, the coordinate of the output track is that X-axis is facing east and Y-axis is facing north.
b. But, if the azimuth angle is set to 0, the coordinate will be that X-axis is facing northeast and Y-axis is facing northwest.
So, the setting of azimuth will significantly impact the result and the way to transform the result to a base coordinate.
What do you think about that?
Q2. Another question is, if put a radar at corner and set azimuth angle to 0, how to set the SceneryParam? For example, if the room is a 5x5 square, the original point at left-down corner, and radar C at right-down corner (4.8, 0.5) facing northwest, how to set radar C's SceneryParam? My main concern is how to set the distance to left wall and right wall. I can't find this illustration in user's guide.
Thank you.
Regards,
Michael
