带通信号的数字正交采样定理及优化设计
THE DIGITAL QUADRATURE SAMPLING THEOREM FOR BANDPASS SIGNAL AND ITS OPTIMUM DESIGN
-
摘要: 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。该文证明了带通信号的数字正交采样定理,并讨论了这种采样系统的优化设计。
-
关键词:
- 带通信号; 正交采样; 采样定理; 混叠
Abstract: For bandpass signal under digital quadrature sampling, there is spectrum shifting. Although the sampling frequency satisfies the sampling theorem, it may cause spectrum aliasing. The digital quadrature sampling theorem for bandpass signal is presented and the optimum design for the sampling system is also discussed in this paper. -
杨福生,戴先中,带通信号的采样定理,信号处理,1986,2(1),58-61.[2]王飞雪,等,带通信号采样定理和全数字式正交检波器的设计,电子科学学刊,1999,21(3),307-310.[3]王桥,吴乐南,任意带通信号的采样定理与频带整体适应性数据表示,电子科学学刊,2000,22(3),398-401.[4]H.L. Liu, A. Ghafoor, et al., A new quadrature sampling and processing approach, IEEE Trans.on AES, 1989, AES-25(3), 733-747.[5]L.E. Pellon, A double Nyquist digital product detector for quadrature sampling, IEEE Trans.on Signal Processing, 1992, SP-40(7), 1670-1681.[6][美]詹姆,崔保延,宽带接收机数字技术,电子工业部第二十九所情报室,电子战技术文选编辑部,19967,第八章.[7]吴远斌,一种数字式正交检波器的设计,电子科学学刊,1997,19(1),68-71.[8]林云松,等,基带采样率内任意带通信号的正交采样,电子科学学刊,1999,21(3),296-301. -
计量
- 文章访问数: 2546
- HTML全文浏览量: 143
- PDF下载量: 1467
- 被引次数: 0
下载:
