Energy Fan-shape Window
Energy Fan-shaped Window display the energy distribution within detection range.
It is a graphic representation that allows you to directly observe range and angle.
it can be showed as the result of range FFT, doppler FFT, and spatial FFT.
Note.
The angle can be measured only when there are two or more RX paths in the radar sensor.
In the case of 1TX and 2RX, Spatial FFT is not actually used to determine the angle, using just simple calculation.
1. Energy Fan-shape Notations
| R axis | Stands for the distance of the target from the radar in its normal direction (unit: meter). | |
| Θ axis | Stands for the angle of the target from the radar(unit: degree) | |
| Color Temperature |
Stands for energy level. ♦ Cold(Blue) color represents low energy, the lower the energy, the more likely there is no object. ♦ Warm(Red) represents high energy, the higher the energy, the more likely the object is. |
2. Energy Fan-shape Basics
Note: Energy Fan-Shape lies in H-Plane
3. Energy Fan-shape Examples
WiFi IoT Module
Bluetooth Module
5G/LTE/CAT-M1/NB-IoT
