A single bearing is a line, not a place. Cross two and the lines meet at a fix — but the crossing geometry, not receiver quality, sets the error. We add least-squares fusion across many receivers and trace the full RWR chain from intercept to track.
Lines of position, the cut angle and GDOP intuition, least-squares fusion, networked ESM, and association-before-crossing.
FlashcardsKey terms and relations from the lesson, in a self-test deck.
DemoMove the emitter and the receivers, and watch the error ellipse tighten at a $90^\circ$ cut and smear at a seam.
Pre-flightPre-class check, due before the lesson. Counts toward your IP grade.