Equalization of Data Acquisition Channels Using Digital Filters
نویسندگان
چکیده
The possibility of the compensation of amplitude and phase errors of data acquisition channels is investigated. The complex passband error can be signiicantly reduced by an appropriate digital lter, as it is illustrated on the example of a dynamic signal analyzer. The aspects of IIR and FIR equalizers are studied: it turns out that for the given anti-aliasing lter (Cauer lter, order 11) an FIR lter of length 60...100 can perform as well as a 26/26 IIR one. Because of the absence of stability problems and the ease of implementation, the use of FIR lters is suggested.
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