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    Digital resolver filter and receiver using same
    1.
    发明授权
    Digital resolver filter and receiver using same 失效
    数字解析器滤波器和接收机使用相同

    公开(公告)号：US3908896A

    公开(公告)日：1975-09-30

    申请号：US45733474

    申请日：1974-04-03

    Applicant: IBM

    Inventor： MONROLIN JEAN LOUIS

    IPC: H03H17/08 ,  H04L7/033 ,  H04B3/14 ,  G05B13/02

    CPC classification number: H04L7/0334

    Abstract: A combination purely recursive digital filter and a resolver is disclosed in which the phase relationship between an extracted signal and a reference phase is measured and used to eliminate the phase error so determined.

    Abstract translation: 公开了一种组合纯递归数字滤波器和解算器，其中测量提取的信号和参考相位之间的相位关系，并用于消除如此确定的相位误差。

    Adaptive switched filter arrangement for use in rapid frequency tracking
    2.
    发明授权
    Adaptive switched filter arrangement for use in rapid frequency tracking 失效
    用于快速跟踪的自适应切换滤波器布置

    公开(公告)号：US3668570A

    公开(公告)日：1972-06-06

    申请号：US3668570D

    申请日：1970-12-04

    Applicant: IBM

    Inventor： LAUTIER ALEX HONORE ,  MONROLIN JEAN LOUIS

    IPC: H03H19/00 ,  H03H7/10

    CPC classification number: H03H19/002

    Abstract: An adaptive switched filter arrangement formed from two switched filters to each of which is applied the same input signal. The first switched filter is switched at an independent predetermined frequency. The second switched filter, however, is tuned by the output frequency extracted by the first filter. This minimizes phase tracking time and cancels systematic phase error.

    Abstract translation: 由两个开关滤波器形成的自适应开关滤波器装置，其中每个开关滤波器施加相同的输入信号。 第一个开关滤波器以独立的预定频率切换。 然而，第二开关滤波器由第一滤波器提取的输出频率调谐。 这样可以最大限度地减少相位跟踪时间并消除系统相位误差。

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