Title :
A multiprocessor structure based on commercial DSP
Author :
Castellini, Guido ; Emiliani, Pierluigi ; Pierucci, Laura ; Pirri, Franco ; Rocchi, Santina
Author_Institution :
Istituto Ricerca Onde Elettromagnetiche, Firenze, Italy
Abstract :
The authors present a multi-DSP (digital signal processing) system based on commercial chips. The structure is a MIMD (multiple-instruction multiple-data) machine with a data-driven organization. A locally parallel link based on a memory shared between two adjacent nodes assures the asynchronous exchange of data. The system is also characterized by a global serial channel useful for program-loading purposes and noncritical data paths. A mathematical model is used to evaluate the performance of the multi-DSP system. The apparatus is used in ultrasound Doppler parameter estimation but the processing architecture is suitable for general real-time applications
Keywords :
Doppler effect; computerised signal processing; multiprocessing systems; parameter estimation; MIMD machine; asynchronous data exchange; commercial DSP; data-driven organisation; digital signal processing; global serial channel; locally parallel link; mathematical model; multiple-instruction multiple-data; multiprocessor structure; noncritical data paths; performance; processing architecture; program-loading; real-time applications; ultrasound Doppler parameter estimation; Computer networks; Digital signal processing; Digital signal processing chips; Mathematical model; Parallel processing; Parameter estimation; Random access memory; Read-write memory; Signal processing algorithms; Ultrasonic imaging;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.197047
