IEEE Transactions on Instrumentation and Measurement · 1988 · 42 citations · 13 references
EngineeringComputer EngineeringElectrical EngineeringAnalog ElectronicsComputer ArchitectureDigital CommunicationDigital Signal ProcessingSignal ProcessingCutoff FrequencyDigital FilteringFilter DesignFiltersFinite Impulse Response Filter ImplementationFinite Impulse Response FiltersInfinite Impulse Response Filter ImplementationInfinite Impulse Response Filters
The implementation of two recently introduced variable digital filter schemes using a TMS320-series digital signal processor is presented. One is a method for updating the coefficients of an FIR (finite-impulse response) filter in a simple manner such that the cutoff frequencies can be controlled through a single parameter. The other is a method for tuning the cutoff frequency of an IIR (infinite-impulse response) filter with one parameter using a series expansion of the low-pass-low-pass frequency transformation. The measured frequency responses compare well with the theory.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
13