发明名称 |
Method of up-converting and up-converter with pre-compensation filter |
摘要 |
<p>An up-converter for digitally sampled baseband signals having the sinc(x) spectral replication functionality of a DAC, using a post-DAC, band pass filter to isolate a baseband replica that falls within that sidelobe of the DAC's sinc(x) frequency response containing the desired IF. The parameters of a pre-compensation filter and the gain of a post DAC amplifier are set to compensate for the distortion and attenuation imparted by the DAC's sinc(x) frequency response. <IMAGE></p> |
申请公布号 |
EP0817369(A2) |
申请公布日期 |
1998.01.07 |
申请号 |
EP19970108460 |
申请日期 |
1997.05.26 |
申请人 |
HARRIS CORPORATION |
发明人 |
CHESTER, DAVID BRUCE;ROBERTS, RICHARD DEAN |
分类号 |
H03M1/66;H03C3/40;H03D7/16;H04L27/20;(IPC1-7):H03D7/00 |
主分类号 |
H03M1/66 |
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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