Transforming the World of D igital Signal Processing

San Antonio building blocks of DSP change? Questions such as these will remain topical into the foreseeable future as progress in DSP techniques and architectures continues to transform the state of the art. DSP applications, in fact, drive integrated circuit technology in several important areas: architectures for special-purpose digital signal processors, high-speed data conversion devices, and others. Improvements in DSP components occur as a natural by-product of integrated circuit evolution, enhancing functional density and increasing switching speed. Other advances, such as novel techniques for implementing DSP algorithms and functions, assume increasing importance as designers develop fundamentally new approaches to solving traditional DSP problems. We selected four broad themes for this special issue on DSP to bring you a cross-section of articles. Each article focuses primarily on one of the areas.