发明名称 |
Delay generation filter |
摘要 |
An Nth order infinite impulse response digital filter for long-delay filtering of signals representing a digital input sequence. The Nth order infinite impulse response digital filter is synthesized by cascading in series N first order infinite impulse response filter stages. A filter stage operable on a digital computer with floating point capability is provided and comprises a multiplier which multiplies an input signal with a weighting factor. A summing element provides an output for the filter stage by summing the weighted input signal with a weighted and delayed output signal. A filter operable on a digital computer with fixed point capability is provided and comprises a summing element which sums an input signal with the output of a first multiplier, and the delayed output of a mask element. The output of the summing element is coupled to the input of a second multiplier and to the input of the mask element. The second multiplier provides an output for the filter stage which is also used, in a delayed form as the input of the first multiplier.
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申请公布号 |
US5553013(A) |
申请公布日期 |
1996.09.03 |
申请号 |
US19940316012 |
申请日期 |
1994.09.30 |
申请人 |
FORD MOTOR COMPANY |
发明人 |
DAVIS, JR., LEIGHTON I.;MATTESON, ROBERT W. |
分类号 |
H03H17/00;H03H17/04;(IPC1-7):G06F17/10 |
主分类号 |
H03H17/00 |
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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