发明名称 |
Apparatus for generating scaled weighting coefficients for sampled data filters |
摘要 |
A method is described for generating continuously variable sets of weighting coefficients for application to weighting circuits of a sampled data filter. The generated coefficients are produced by scaling the time axis of the impulse response described by a set of standard or nominal weighting coefficients in an inverse manner to a desired scaling of the filter frequency response. The coefficient values at the scaled time points are calculated by a piecewise linear interpolation process and correspond to the scaled coefficients. By this technique, a large number of sets of weighting coefficients may be generated from a single set of coefficients with relatively few circuit elements.
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申请公布号 |
US4494214(A) |
申请公布日期 |
1985.01.15 |
申请号 |
US19830463613 |
申请日期 |
1983.02.03 |
申请人 |
RCA CORPORATION |
发明人 |
BERNARD, FRANCIS S.;ELISCU, STEVEN M.;BATTERMAN, ERIC P. |
分类号 |
G06F17/10;H03H17/02;(IPC1-7):G06F15/31 |
主分类号 |
G06F17/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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