Understanding Digital Signal Processing, Second Edition is quite simply the best way for engineers and other technical professionals, to master and apply DSP techniques. This book reaches a perfect balance between theory and practice, so the DSP can be accessed by beginners without ever simplifying it. This edition adds extensive new coverage of quadrature signals for digital communications, recent improvements in digital filtering, and more. Down-to-earth, intuitive, and example-rich, with detailed numerical exercises Emphasizing the practical, day-to-day DSP implementations and problem-solving All-new quadrature processing coverage includes easy to understand 3D images Extended coverage of IIR filters, plus frequency sampling, interpolated FIR filters New coverage of multirate systems, including the polyphase and storied integrator-comb FIR filters Coverage includes: periodic sampling, DFT, FFT, digital filters, discrete Hilbert transform, sample rate conversion, quantization, signal average, and more