Distance measurements are noisy and less accurate than expected

[koghalai123]

Hello,

I am using this library to read information from a SparkFun Pulsed Coherent Radar Sensor – Acconeer XM125. I was testing out the "Distance Basic Readings" and "Distance Serial Plotter," but even when leaving the sensor untouched, pointed at a target, the distance measurements were noisy, in the range of 2-3mm at close distances and 10-20 mm at longer distances. From looking at the product datasheet of the radar sensor(listed here, under A121 RADAR Sensor, Product Information: https://acconeer.com/products/), it says the relative accuracy should be accurate to micrometers. For my use, the absolute accuracy is not as important, but the relative accuracy should be fairly small. Is there a way to improve the relative accuracy that is being read from the XM125 board?

Thanks in advance.