Automatische Eichung digital einstellbarer Analogschaltungen

Digitally programmable filters are suited for applications which require a filter with a transfer function that is variable on a short-term basis. In the case of signal processing in frequency ranges for which such filters are either not available or their use is not economical, the employment of electronically tunable analog filters or other analog circuits has been proposed. The considered analog circuits contain electronically tunable components, such as, for instance, tuning diodes, field-effect transistors, and pin diodes. Individual differences regarding the characteristics of these components make it often necessary to gauge each circuit. The present investigation is concerned with an automatization of the gauging process. The developed procedure makes use of an optimizing program which is based on the evolution method.