发明名称 |
DC offset cancellation |
摘要 |
A transmitter has a transmission path with an IQ modulator and a feedback path with an IQ demodulator. DC offset is determined by estimating a DC offset of the IQ demodulator, adaptively estimating a DC offset of the IQ modulator at least partially from the demodulator DC offset, subtracting the estimated demodulator DC offset from the feedback path and subtracting the estimated modulator DC offset from the transmission path.
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申请公布号 |
US2005025255(A1) |
申请公布日期 |
2005.02.03 |
申请号 |
US20040924996 |
申请日期 |
2004.08.25 |
申请人 |
FRANCOS AMIR;BARAK ILAN;YELLIN DANIEL |
发明人 |
FRANCOS AMIR;BARAK ILAN;YELLIN DANIEL |
分类号 |
H03C3/40;H04L25/06;(IPC1-7):H04K1/02 |
主分类号 |
H03C3/40 |
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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