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BASEBAND SIGNAL PROCESSING TECHNIQUE

机译:基带信号处理技术

摘要

A baseband processing technique is described that permits to process in an analog signal domain a complex-valued baseband signal to laterally remove interference components resulting, for example, from in-band blocking signals. In an exemplary device implementation, the baseband processing device is configured to receive a baseband signal having a designated signal bandwidth defined by two opposite band edges, wherein a first frequency shift in a first direction toward a first band edge is impressed on the baseband signal. The device comprises a first filter stage adapted to filter the baseband signal exhibiting the first frequency shift to remove interference components behind the first band edge, a frequency shifter stage adapted to shift the filtered baseband signal by a second frequency shift in a second direction opposite the first direction towards a second band edge, and a second filter stage adapted to filter the baseband signal exhibiting the second frequency shift to remove interference components behind the second band edge.
机译:描述了一种基带处理技术,该技术允许在模拟信号域中处理复数值基带信号,以横向去除例如由带内阻塞信号产生的干扰分量。在示例性设备实现中,基带处理设备被配置为接收具有由两个相对的频带边缘定义的指定信号带宽的基带信号,其中,在第一方向上朝向第一频带边缘的第一频率偏移被施加在基带信号上。该设备包括:第一滤波器级,适于对表现出第一频移的基带信号进行滤波以去除第一频带边缘之后的干扰分量;移频器级,适于在第二方向上将滤波后的基带信号沿第二方向移位第二频移。第一方向朝向第二频带边缘,第二滤波器级适于对表现出第二频移的基带信号进行滤波以去除第二频带边缘后面的干扰分量。

著录项

  • 公开/公告号US2011014889A1

    专利类型

  • 公开/公告日2011-01-20

    原文格式PDF

  • 申请/专利权人 DIETMAR LIPKA;

    申请/专利号US20090934680

  • 发明设计人 DIETMAR LIPKA;

    申请日2009-03-17

  • 分类号H04B1/10;

  • 国家 US

  • 入库时间 2022-08-21 18:14:13

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