Application Note
page 26 of 33
V1.7
2022-08-01
XENSIV™ BGT60LTR11AIP shield
60 GHz radar system platform
Measurement results
6.2.3
SPI mode and motion detection algorithm
•
Hardware
DEMO BGT60LTR11AIP, consisting of the Radar Baseboard MCU7 + BGT60LTR11AIP shield (which is
configured by default in SPI pulsed mode)
•
Firmware
Is used to set the shield configuration by writing to the MMIC SPI registers, sample the I&Q baseband signals,
and process the acquired RAW data through a motion detection algorithm, as shown in Figure 23 (b).
The “Radar Advanced Motion Sensing with SPI” application available from the Radar Fusion GUI is used.
•
Height
Board is placed at 1.2 m
•
Scenario
Measure the max. detection range of a human target along the H-plane and E-plane of the sensor for
different angles, with the default configuration, and with an algorithm set threshold value of 40, which can
be selected from the Radar Fusion GUI.
•
Detection status
is driven from the advanced motion detection algorithm running on the microcontroller of the Radar
Baseboard MCU7. Figure 27 shows the measurement results in H-plane and the right shield orientation.
Detection area: Range vs. Angle (FoV)
Range (m)
H-plane
Advancded Motion
Sensing with SPI
THRS=40
Figure 27
H-plane Human target detection area, in SPI mode, using motion sensing algorithm
