Special-Purpose Computer Organization for Double-Precision Realization of Digital Filters

This paper concerns the design, implementation, and testing of a stored-programmed special-purpose computer that, when employed as a digital filter, satisfies the requirement of reduced deadband for the input interface element (the analog-to-digital converter). This is accomplished by using a double precision arithmetic process which employs shorter word lengths; and consequently, the physical size (component-wise) and the calculation time of the filter are reduced.