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IWR6843ISK-ODS: X,Z,Y coordinates

Part Number: IWR6843ISK-ODS

Hello!

I'm just starting with the ODS sensor... It's really gorgeous!

I have just a big deal... I red the forum inquairy: e2e.ti.com/.../2945314
but I'm not able to understand the sensor output...

X and Z are ok but the big problem is with the Y ...

The sensor is ceiling mounted and I cross the FOW area...

The config file is:

sensorStop
flushCfg
dfeDataOutputMode 1
channelCfg 15 7 0
adcCfg 2 1
profileCfg 0 60.6 200 7 40 0 0 82 1 128 5300 0 0 48
chirpCfg 0 0 0 0 0 0 0 1
chirpCfg 1 1 0 0 0 0 0 2
chirpCfg 2 2 0 0 0 0 0 4
frameCfg 0 2 64 0 100 1 0
lowPower 0 0
cfarCfg -1 0 0 8 4 4 0 6120
cfarCfg -1 1 0 4 2 3 0 6120
SceneryParam -1.18 2.12 1 2.0 -0.5 2
GatingParam 3 2 2 2 12
AllocationParam 50 120 0.01 5 1 20
StateParam 5 5 10 20 5
VariationParam 0.2887 0.2887 1 1
MaxAcceleration 0.1 0.1 0.1
AllocZone 0 1
CloudPersistence 0
SNRFilter 4 40

and the the sensor output is...

1.4704525, 0.91552216, 0.91552216
1.289851, 0.8116458, 0.8116458
1.1370037, 0.80412793, 0.80412793
0.92288524, 0.6441018, 0.6441018
0.7461996, 0.5576767, 0.5576767
0.59881943, 0.48161486, 0.48161486
0.4375968, 0.40571716, 0.40571716
0.3106714, 0.35983235, 0.35983235
0.1749097, 0.32925317, 0.32925317
0.030750401, 0.26422167, 0.26422167
-0.09188205, 0.20079626, 0.20079626
-0.25769785, 0.15399069, 0.15399069
-0.40835372, 0.07922331, 0.07922331
-0.5127566, -0.014634013, -0.014634013
-0.6286176, -0.06466763, -0.06466763
-0.74490285, -0.113267906, -0.113267906
-0.84986866, -0.15446676, -0.15446676
-0.94723654, -0.20461422, -0.20461422
-1.0474797, -0.24263354, -0.24263354
-1.0474797, -0.24263354, -0.24263354
-1.2397251, -0.3021204, -0.3021204
-1.3756436, -0.3324848, -0.3324848

Respectively X,Z,Y

How is it possible that the Y is negative?!?!?!?!

And what really are X,Z,Y?
Are the X,Z,Y the coordinates of the ellipsoid?
Are the X,Z the coordinates bidimensional of the centroid track and the Z the maximum height of the object?

Thanks in advance

Alessandro