专利名称：Filter bank
发明人：GOCKLER, HEINZ, DIPL.-ING.申请号：EP88105684.0申请日：19880409公开号：EP0290790A2公开日：19881117
摘要：The invention relates to a filter bank for frequency demultiplexing ormultiplexing L channel signals, for L > 0 and L being a natural number, consisting of Ltransversal filters (non-recursive filters, filters with a finite duration of the pulse response(FIR)), with complex-valued coefficients, for real-valued input signals and with complex-valued output signals or conversely, with a sampling rate which is reduced or increased bythe factor M at the output, and is characterised by the fact that at least one of theL filters is implemented by cascading at least two filters having in each case complex-valued coefficients, that in each of these filters the sampling rate is reduced or increased,respectively, by the factor Mq > 1, with… …… that the input filters of the cascade in eachcase receive a real-valued input signal and output a complex output signal and the otherfilters of the cascade in each case receive a complex-valued input signal and output acomplex-valued output signal (Figure 3) or, respectively, that the first Q-1 filters of thecascade in each case receive a complex-valued input signal and output a complex-valuedoutput signal and the output filters of the cascade in each case receive a complex-valuedinput signal and output a real-valued output signal.
申请人：ANT NACHRICHTENTECHNIK GMBH
地址：Postfach 30 02 20 70442 Stuttgart DE
国籍：DE
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