https://www.counteruavradar.com/en/categories/target-tracking-and-classification/ Recent content in Target Tracking and Classification on Counter UAV Radar — Low-Altitude Surveillance Radar Hugo en-US Sun, 18 Oct 2026 00:00:00 +0800 https://www.counteruavradar.com/en/knowledge-base/what-is-a-micro-doppler-signature/ Tue, 27 Oct 2026 00:00:00 +0000 https://www.counteruavradar.com/en/knowledge-base/what-is-a-micro-doppler-signature/ <p>A small drone and a bird can look identical on a radar scope: same size, similar speed, similar track. Yet counter-drone radars routinely tell them apart. One of the main tools that makes this possible is the micro-Doppler signature — the fine frequency structure that moving parts add to the radar echo.</p> <h2 id="from-doppler-to-micro-doppler">From Doppler to Micro-Doppler</h2> <p>Basic Doppler is simple: a target moving toward the radar shifts the returned signal up in frequency; moving away shifts it down. That bulk shift tells the radar how fast the whole target is approaching or receding, and it is the foundation of <a href="https://www.counteruavradar.com/en/knowledge-base/what-is-pulse-doppler-radar/">pulse-Doppler radar</a>.</p>