Digit-Serial Computation (The Springer International Series in Engineering and Computer Science) by Richard I. Hartley

by Richard Hartley

The sampling rates for digital signal processing (DSP) in such applications as speech, telephony, mobile radio, video, radar and sonar, ranges from 10 kHz to 100 MHz. Real-time implementation of such systems requires design of hardware that can process signal samples as these are received from the source, rather than storing them in buffers for batch-mode processing. Efficient implementation of DSP hardware demands a study of families of architectures and styles, selecting an appropriate architecture for a specific application. Digit-Serial Computation is proposed as an appropriate design methodology when bit-serial systems cannot meet sampling rate requirements, and where bit-parallel systems require excessive hardware. A family of implementations can be obtained by changing the digit size parameter, allowing an optimum trade-off between throughput and size. Digit-Serial Computation describes the architecture, and the design and layout methods used in the silicon compiler developed at GEC's Corporate R&D Laboratory. The structures architecture of digit-serial designs lends itself to automatic compilation from algorithmic descriptions. The book also goes on to discuss wider-ranging issues in digit-serial design in chapters on `folding' and `unfolding', as well as in chapters on systolic arrays, canonic-signed-digit number representation and carry-save arithmetic. The book is an excellent source of reference and may be used as a text for an advanced course on the subject.

Paperback

First published May 31, 1995