![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/wordpress-popular-posts/15621-featured-125x100.png)
![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/wordpress-popular-posts/2574-featured-125x100.png)
Some posts have DSP code included to help demonstrate the concepts. You can check them out under the post with code tag. Enjoy!
New Book!
The third edition of DSP for Beginners: Simple Explanations for Complex Numbers! Includes a new chapter on sampling.
