Company: Arbe
How does high-channel-count radar eliminate ambiguity How does high-channel-count radar eliminate ambiguity Arbe Arbe September 4, 2025, 21:00 Beijing When radar detects a target object but reports the presence of multiple identical targets, how can we determine which one is the real target? This issue of radar signal ambiguity has long troubled autonomous driving systems, and the solution lies in eliminating false signals at the source through intensive sampling. 01 False target issue When a radar sensor detects a target but reports multiple targets with similar power levels within its field of view, radar signal ambiguity occurs. Imagine placing an object in front of a radar; the system may not only display one clear target but also display multiple identical false targets and weaker shadows. In this case, the radar cannot distinguish which target is real. This decline in sensor reliability leads to two types of problems: Doppler ambiguity and azimuth/elevation angle ambiguity. Doppl
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