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.

Reading

Pulse Radars & Ambiguity

Pulse train, PW/PRI/PRF and duty cycle, range resolution, unambiguous range and velocity, and the \(c\lambda/8\) invariant.

Flashcards

Review deck

Key terms and relations from the lesson, in a self-test deck.

Pre-flight

Pre-flight quiz

Five questions to work before class — anyone can be called to the board.

Slides

Lesson slides

The deck we work through in class, as a PDF you can annotate.

Demo

PRF Explorer

Drive PRF and pulse width, watch the pulse train, and fold a true range into its apparent range.