The impact of heavy snow weather on radar systems has always been a critical concern for both customers and companies. How millimeter-wave radar maintains efficient detection in extremely harsh conditions to ensure comprehensive scene monitoring and target recognition directly reflects its product performance and reliability.

Recently, Changsha experienced rare heavy snowfall. Seizing this opportunity, Nanoradar led its R&D team to conduct on-site tests of key products in the snow. By simulating various scenarios, we comprehensively validated the adaptability of automotive, security, and traffic millimeter-wave radars in severe environments.

This testing not only provided customers with firsthand data on product performance but also, through comparative analysis, allowed us to identify shortcomings under extreme conditions, laying the groundwork for future optimizations and upgrades.

Nanoradar Product Test Data in Snowy Conditions
MR76S
By emitting millimeter waves forward and detecting their reflections, the MR76S provides information on the relative distance, speed, and angle of obstacles. It enables real-time detection and tracking of large and small vehicles, electric cars, and other objects on the road. Equipped with advanced technologies such as DBF digital beamforming and near-far beam shaping, it achieves a measurement range of 1.2–300 meters, supports detection of up to 128 targets, and features a compact size, high sensitivity, stable performance, lightweight design, and easy integration.

MR76S Comparative Test Data

Clear Weather Mode: Target detection rate: 95%–98% (at 100 meters).

Snowy Weather Mode: Target detection rate: 89%–96% (at 100 meters).

Findings: The target detection rate in snowy conditions decreases by less than 10%.

Nanoradar NSR120
The NSR120 is an intelligent perimeter security radar with a stationary cross-range detection capability of up to 120 meters. It detects and alerts when targets enter the protected area, accurately determining their position based on distance, angle, and speed. It can integrate video analytics for target verification and uses AI algorithms to determine whether a target requires an alarm.

NSR120 Comparative Test Data

Clear Weather Mode: Maximum radial distance: 145 meters.

Snowy Weather Mode: Maximum radial distance: 126 meters.

Findings: The maximum radial distance in snowy conditions decreases by approximately 10%.
Through on-site testing and data analysis during this heavy snowfall, we observed that in snowy conditions:

The target detection rate of traffic radar decreases by less than 10%.

The maximum radial detection distance of security radar is slightly affected but remains within controllable limits, ensuring no impact on customer usage.

However, when snow accumulation exceeds 10 cm, further discussion is needed to determine whether to classify snow as a target or a false alarm. This will be a key focus of our next steps.

Overall, thanks to redundant design, Nanoradar’s millimeter-wave radars demonstrate strong environmental adaptability, operating reliably and maintaining detection functionality even in snowy conditions. They can be used with confidence.

Under ice and snow, this is not the end but a new beginning. In the future, we will continue to focus on core technology, driving advancements in radar technology.