Hardware control of a real-time multichannel digital signal processing system

Author

Weeks, William A. ; Chittenden, Constance T. ; Heilman, Paul M.

Author_Institution

SRI Int., Menlo Park, CA, USA

fYear

1991

fDate

4-6 Nov 1991

Firstpage

423

Abstract

SRI International has developed a high-performance parallel signal processing system for use in real-time applications. The system consists of multiple analog input and output (I/O) channels linked by an array of digital signal processing (DSP) elements. System performance requires that multiple output samples, which depend on the input data, be generated immediately following the acquisition of the input samples. Two innovative features of the system are an ensemble of DSP boards, each of which contains eight AT&T DSP32C processors, and a network of multiplexed data paths and scheduling hardware. The latter feature solves the I/O bottleneck problem common to commercial DSP approaches and results in higher data throughput than is possible with run-time software scheduling. Planned improvements to the design are discussed

Keywords

digital signal processing chips; parallel architectures; real-time systems; AT&T DSP32C processors; DSP boards; DSP modules; data throughput; hardware configurations; hardware control; high-performance parallel signal processing system; multiple analogue input channels; multiple output channels; multiplexed data paths; real-time multichannel digital signal processing system; scheduling hardware; Array signal processing; Control systems; Delay; Digital signal processing; Finite impulse response filter; Hardware; Processor scheduling; Real time systems; Signal processing; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1991. 1991 Conference Record of the Twenty-Fifth Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

0-8186-2470-1

Type

conf

DOI

10.1109/ACSSC.1991.186485

Filename

186485