Abstract
While wave digital filters (WDFs) can always be implemented by commercially available integrated digital signal processors (DSPs), the efficiency of such implementations leaves room for improvement. Modified forms of WDFs are therefore derived that yield much more efficient DSP implementations than those previously available. The approach is particularly suitable for lattice WDFs. The modified WDF structures can be easily built in such a way that they possess all stability properties desired under signal quantization, i.e. not only the absence of small- and large-scale limit cycles, but also, for example, forced-response stability and related properties.
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