2005/10/22 | 外差转换[Heterodyne Conversion]
类别(Ω〖物理〗) | 评论(0) | 阅读(15) | 发表于 09:16
Use of a local oscillator to mix a radio frequency signal to a more convenient intermediate frequency. The mixer generates upper and lower sidebands, either of which may be filtered out if desired.
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