Automotive radar sensor applications

Automotive Radar sensors are mainly used on the body segment. They can be used for position sensing, motor control, comfort features and HMI applications. There are different categories of automotive Radar sensors that designed to meet specific needs: Short-Range Radar (SRR), Mid-Range Radar (MRR), and Long-Range Radar (LRR).

Generally, short-range radar systems are used for automotive applications in which the car is moving slowly or an obstacle is located near the vehicle such as in blind spot detection sensors or lane change assist radar sensors. Using millimeter-wave Radar sensors in vehicles allows the radar system to transmit electromagnetic wave signals that can then be recaptured and used to determine the range, velocity, and angle of an object when the wave signal is reflected by an object in its path.

Both short- and mid-range Automotive radar sensor applications can also be placed on all four corners of the vehicle. This is called a corner radar and can detect obstacles or pedestrians before they are visible to the driver and deploy automatic emergency braking (AEB). Long range Automotive radar sensor applications are most commonly used in the front section of vehicles as they can better detect traffic changes from farther distances ahead. As sensor content is expected to grow further as interior and comfort is becoming a key differentiation factor for OEM’s, automotive radar sensor manufacturers require high quality and reliable radar sensor technology to meet their specific needs.

Additionally, 4D automotive imaging Automotive radar sensor applications are increasingly being used in autonomous vehicle designs as they offer excellent detection of both moving and stationary objects from greater distances and with better accuracy than traditional Automotive radar sensor applications. This is due to utilizing a multi-input, multi-output (MIMO) 48-antenna array which, when compared to less than 5 transmitting and receiving antennas in regular radar sensing solutions, allows a dataset to be created of the car’s surroundings.

Using radar sensors for automotive collision warning and avoidance is especially important for automated driving where vehicles need to be able to react and reliable avoid hitting objects and people.

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