How a faint echo becomes a range, a speed, a track and a picture: waves and decibels, the radar equation and the shapes that scatter, detection in noise and clutter, pulse compression and FMCW, Doppler, antennas and phased arrays, tracking, synthetic-aperture imaging, the radars of the sky, the sea, the road and orbit, and where the field is going. Every echo on every plate is computed in the page.
This course simulates every radar it teaches; nothing on the site transmits, and transmitting on radar bands needs a licence or type approval almost everywhere. It teaches principles, civil systems and history, not weapons engineering or ways to defeat radar. Not affiliated with or endorsed by any university, agency, company or standards body it mentions; trade names belong to their owners.