Traffic safety can be improved by detecting the road surface condition using automotive radar.
This paper describes two 24 GHz measurement systems for investigating the backscattering properties of different asphalt surfaces e.g. dry, wet and icy surfaces.

Specification and Property

Road Surface Measurement Radar System
Dry / Ice / Wet / Etc.
24.15GHz FMCW Radar
Temperature & Humidity Sensor
Non Contact Infrared Thermometer Sensor
MEMS Motion Sensor
Ethernet Protocol Interface

Radar System Design using Noise Waveform

Radar Signal Processing + Controller + Noise Generator
Detection of distance and speed to target

FMCW Radar

Detection of distance and speed to target

ROC Design

Check points for X-band radar – Frequency range (9.2~9.5 GHz / 9.3~9.5 GHz)
Variable frequency in X- and S-bands:
– X-Band: 9210MHz-9490MHz (14 available bands)
– S-Band: 2920MHz-3080MHz (8 available bands)
Ref: Solid-state Radar Advantages (DeTect)

Targets and clutter are separated by measuring the target Doppler shift.