Lesson 4 — Pulse Radars & Ambiguity#
Pulsed waveforms in slow time, how pulse width and PRF trade range resolution against unambiguous range and velocity, and the invariant that ties the two ambiguities together.
Pulse Radars & Ambiguity
Pulse train, PW/PRI/PRF and duty cycle, range resolution, unambiguous range and velocity, and the \(c\lambda/8\) invariant.
FlashcardsReview deck
Key terms and relations from the lesson, in a self-test deck.
Pre-flightPre-flight quiz
Five questions to work before class — anyone can be called to the board.
SlidesLesson slides
The deck we work through in class — an HTML deck you can annotate in the browser, with a print view for saving a PDF.
DemoPRF Explorer
Drive PRF and pulse width, watch the pulse train, and fold a true range into its apparent range.
DemoPulse Timeline
Pulses physically travel the wire: watch echoes merge at ΔR, fold past Rᵤ, and spin the phase dial that makes vᵤ motion you can see.