Application Note
page 24 of 33
V1.7
2022-08-01
XENSIV™ BGT60LTR11AIP shield
60 GHz radar system platform
Measurement results
6.2
Motion detection area
The measurements are conducted for different MMIC operation modes, and settings.
Figure 23 below shows the possible operating modes, and how the detection status is driven.
Read T_Det, P_Det internal
detector output GPIOs
Motion Detection Result
Read T_Det, P_Det internal
detector output GPIOs
Set device config. by writing
to the MMIC SPI registers
Sample I/Q BB signals
Process aquired RAW
data using an Algorithm
Sample QS pins
inputs
SPI mode
Autonomous mode
a
b
Figure 23
Shield operation modes and motion detection status
6.2.1
Autonomous mode
•
Hardware
SHIELD_AUTONOM_BGT60, consisting of a BGT60LTR11AIP shield (which is configured by default in
autonomous pulsed mode). For more details, please refer to section 5.
•
Firmware
No firmware is needed for the autonomous shield.
•
Height
Board is placed at 1.2 m
•
Scenario
Measure the max. detection range of a human target along the H-plane of the sensor, for different angles.
•
Detection status
Is driven from the internal detector output (TDet). Figure 24 shows the measurement results in H-plane and
E-plane, and the right shield orientation.
Detection area: Range vs. Angle (FoV)
Range (m)
E-plane
H-plane
H-plane
E-plane
Figure 24
H-plane Human target detection area for BGT60LTR11AIP autonomous shield
