![Figure 1: The weights of the partitioned half band filter hA[n] and hB[n].](https://www.wavewalkerdsp.com/wp-content/uploads/wordpress-popular-posts/2226-featured-125x75.png)
![Figure 2: The complex sinusoid x0[n] = e(j2 pi 0.125 n) plotted in the complex plane.](https://www.wavewalkerdsp.com/wp-content/uploads/wordpress-popular-posts/3104-featured-125x75.png)
New WWDSP Book For Sale!
March 1, 2025
Trending
Introduction to Interpolation and Upsampling - Polyphase Half Band Filter for Decimation by 2
- Using Euler’s Formula to Derive Sine and Cosine
- Half Band Filter Design: Exceptional Filtering Efficiency!
- The Almanack of Naval Ravikant: Buy The Book Now!
- The Unit Circle: The Field of Play for the Game of DSP
- Windowing Function Gain Normalization
- Aliasing, Sampling and Spinning Car Tires
- Bartlett Method Power Spectral Density (PSD) Signal Estimates
- Writing an eBook for Amazon Kindle with LaTeX on Linux
Recent Blogs
Apollo 13 and Engineering Operations
February 1, 2025
Windowing Function Gain Normalization
January 1, 2025
Should I Get a Masters Degree?
December 1, 2024
What DSP Classes Should I Take?
November 1, 2024
How To Install GNU Radio Source Code
October 1, 2024
How to Travel Well At the Airport
September 1, 2024
Celebrating Three Years of WWDSP!
August 28, 2024
How to Count in Binary Numbers
August 1, 2024
![A BPSK signal s[n], real Gaussian noise w[n], and the received signal x[n] = s[n] + w[n] for SNR = 20 dB](https://www.wavewalkerdsp.com/wp-content/uploads/2023/12/HowToComputeSignalToNoiseRatioSNRInSimulation_signalNoiseTimeDomain-300x240.png)
Buy the Book!
The third edition of DSP for Beginners: Simple Explanations for Complex Numbers! Includes a new chapter on sampling.
