A Multiprocessor System For Real-time Implementation Of Spatial Domain Digital Filters
Seongmo Park, W.E. Alexander, Jongryool Kim · 2005
This paper presents an efficient multiprocessor system for real-time implementation of spatial domain digital filters. This multiprocessor system uses a specially designed digital signal processor (DSP) as a node and operates asynchronously without requirement for global synchronization between DSPs. It is based upon an efficient algorithm decomposition technique which minimizes data communication requirements between DSPs without increasing computational complexity. A very high order spatial domain digital filter can be implemented by cascading lower order sections with the total number of the processors increasing only at a linear rate. This multipro- cessor system is an implementation of a wavefront array processor for spatial domain filters.