Here we provide a variety of items that readers may find helpful or interesting, in addition to what is in the book.
Chapter 4 introduces infinite impulse response (IIR) digital filters. This supplement shows you how to easily use second-order sections (SOS) as versatile and efficient IIR filter building blocks, and how to create and use a function that implements SOS. Files for both MATLAB and C are provided.
Have you ever wanted to operate your DSP board free from a wall plug for the power supply? Whether it's for increased mobility or to isolate the device from line power (a consideration for certain biomedical applications to ensure patient safety), it's fairly easy to accomplish.