提出了一种在基带采样率内对任意带通信号的正交采样技术。
A new quadrature sampling technique for arbitrary bandpass signal within baseband sampling rate is presented.
在数字正交采样中，带通信号存在频谱迁移问题，虽然满足带通信号的采样定理，仍可能产生频谱混叠。
For bandpass signal under digital quadrature sampling, there is spectrum shifting. Although the sampling frequency satisfies the sampling theorem, it may cause spectrum aliasing.
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