A real time programmable digital filter for biomedical signal enhancement incorporating a high-level design interface.
A simple but highly integrated digital signal processing system is described for real time filtering of biomedical signals. It includes the necessary processing and communications hardware, the processing code itself and a high-level software interface that enables the user to design and download arbitrary finite impulse response filters to the run-time system. The filter coefficients are calculated using the frequency sampling method. Since the filters are realized using a finite impulse response, no phase distortion is introduced into the processed signals. A unique feature of the design is the manner in which the software and hardware components have been organized as an intelligent system, obviating on the part of the user a detailed knowledge of filter design theory or any abilities in processor architecture and assembly code programming.
Gaydecki
P
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Department of Instrumentation and Analytical Science, UMIST, Manchester, UK. patrick.gaydecki@umist.ac.uk
D004562:Electrocardiography / Q000706:statistics & numerical data; D004867:Equipment Design; D005069:Evaluation Studies as Topic; D006801:Humans; D015233:Models, Statistical; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D012984:Software; D014584:User-Computer Interface