Wave Walker DSP

DSP Algorithms for RF Systems

DSP

Figure 1: The frequency response of the ideal low pass filter (LPF) for omega c = 1/8.

Deriving the Ideal Low Pass Filter (LPF)

October 1, 2022

Figure 2: Upsampling by 5 is accomplished by zero-padding every sample with 4 zeros.

Introduction to Interpolation and Upsampling

September 1, 2022

Figure 3: Comparing a moving average filter N=8 with the single pole IIR filter approximation.

Single Pole IIR Filter: Substitute for Moving Average Filter

August 10, 2022

Figure 1: The cutoff frequency approximation for a moving average filter of length 5.

Bandwidth of a Moving Average Filter

August 3, 2022

Figure 3: A semilog plot on y for x and 10^x.

Explaining Logarithms, Exponents and Base Numbers With Plots

July 27, 2022

Easy Guide to Logarithms and Decibels

July 20, 2022

Figure 2: The magnitude-squared of the boxcar window frequency response.

Fourier Transform of the Boxcar Window

July 13, 2022

A smaller alpha value leads to a more narrow filter bandwidth for the single pole IIR.

Single Pole IIR Filter Frequency Response

July 6, 2022

Most Useful Git Commands for Everyday Coding

June 29, 2022

Matt Ettus on Fading Models

June 22, 2022