
Designing FIR Filter Gain
February 23, 2022

Why an FIR Filter Should Have an Odd Length
December 29, 2021

Efficient Real to Complex Conversion with a Half Band Filter
December 15, 2021

Half Band Filter Design Function in Python
December 8, 2021

Square Root Raised Cosine Filter in Python
November 10, 2021
![Figure 4: The PFB half band filter structure after folding the even-symmetric filter weights hA[n] and ignoring the zero weights in hB[n].](https://www.wavewalkerdsp.com/wp-content/uploads/2021/10/polyphaseHalfBandFoldedNoZeroMultiply-150x150.png)
Folding a Polyphase Half Band Filter: Lemon Squeezer Style
October 6, 2021
![Figure 1: The weights of the partitioned half band filter hA[n] and hB[n].](https://www.wavewalkerdsp.com/wp-content/uploads/2021/09/halfBandFilterPolyphase_HBFImpulseResponsePolyphasePartition-1-150x150.png)
Polyphase Half Band Filter for Decimation by 2
September 29, 2021

Half Band Filter Design: Exceptional Filtering Efficiency!
September 27, 2021

Designing an FIR Band Pass Filter with Remez
September 24, 2021

Designing an FIR High Pass Filter with Remez
September 23, 2021