From adc374586bb87b5f446c9386eaf5d4f5ff7f06bc Mon Sep 17 00:00:00 2001 From: "Steven G. Johnson" Date: Wed, 3 May 2023 14:36:01 -0400 Subject: [PATCH] lecture 34 notes --- README.md | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/README.md b/README.md index 0503702..a993b66 100644 --- a/README.md +++ b/README.md @@ -363,3 +363,11 @@ Fourier series vs. DFT: If we view the DFT as a [Riemann sum](https://en.wikiped * [Filter design](https://en.wikipedia.org/wiki/Filter_design) and [FIR filters](https://en.wikipedia.org/wiki/Finite_impulse_response). **Further reading**: See the DSP links from lecture 32. + +## Lecture 34 (May 3) +* FIR filter design = polynomial fitting. Windowing & least-squares, or minimax design by [Parks-McClellan](https://en.wikipedia.org/wiki/Parks%E2%80%93McClellan_filter_design_algorithm) and similar. +* Changing variables H(z) = ĥ(ω) for z=exp(iω): the [Z transform](https://en.wikipedia.org/wiki/Z-transform) +* [IIR filters](https://en.wikipedia.org/wiki/Infinite_impulse_response): definition, relation to [rational functions](https://en.wikipedia.org/wiki/Rational_function), first-order IIR filter example, stability. + +**Further reading**: See the DSP links from lecture 32. +