发明名称 |
Decimation filtering apparatus and method |
摘要 |
A decimation filtering apparatus using interpolated second order polynomials compensates for a droop caused by a CIC (Cascaded Integrator-Comb) filter. The decimation filter includes a CIC decimation filter for decimation filtering the sampling signal to downconvert a sampling signal; an ISOP filter for monotonically increasing an output of the CIC decimation filter to compensate for a passband droop caused by the CIC decimation filter; a multistage halfband filter including at least one modified halfband filter for half-decimating a signal output from the ISOP filter, thereby downconverting the ISOP filter output signal; and a programmable FIR filter that compensates for a passband droop of a signal output from the multistage halfband filter.
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申请公布号 |
US6279019(B1) |
申请公布日期 |
2001.08.21 |
申请号 |
US19980224811 |
申请日期 |
1998.12.31 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
OH HYUK-JUN;LEE YONG-HOON;KIM SUN-BIN;CHOI GIN-KYU |
分类号 |
H03H17/00;H03H17/02;H03H17/04;H03H17/06;H03M1/16;(IPC1-7):G06F17/10;G06F17/17 |
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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