发明名称 |
Förfarande och anordning i en digital oscillator |
摘要 |
A method and arrangement for generating orthogonal sinusoidal signals in a digital oscillator. The oscillator includes a signal generator which generates a digital sinusoidal signal. The digital sinusoidal signal is fed into a phase shifter which is separate from the signal generator. The phase shifter derives from the digital sinusoidal signal a first pair of digital sinusoidal signals having a phase difference corresponding to at least one sample step. The first pair of digital sinusoidal signals is fed into an orthogonalization unit which produces a pair of orthogonal digital sinusoidal signals by forming linear combinations of the first pair of digital sinusoidal signals. |
申请公布号 |
SE511554(C2) |
申请公布日期 |
1999.10.18 |
申请号 |
SE19970003317 |
申请日期 |
1997.09.15 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON |
发明人 |
DAN *KORSFELDT |
分类号 |
G06F1/02;H03B27/00;H03B28/00;(IPC1-7):H03B27/00 |
主分类号 |
G06F1/02 |
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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