Method and circuits for reducing the peak power of the filtered signal
transmitted in a digital link
    2.
    发明授权
    Method and circuits for reducing the peak power of the filtered signal transmitted in a digital link 失效
    用于降低在数字链路中发送的滤波信号的峰值功率的方法和电路

    公开(公告)号:US5493587A

    公开(公告)日:1996-02-20

    申请号:US097675

    申请日:1993-07-27

    IPC分类号: H04L27/34 H04B15/00

    CPC分类号: H04L27/3411

    摘要: The invention relates to a method of reducing the peak power of a signal at the output of the transmit filter of a digital link, e.g. a microwave link. The invention is characterized by the use of a coding in transmission and a decoding in reception, adapted to reduce the peak power of the filtered signal. In the disclosed embodiment, not intended to be limiting, the encoder and the decoder can be realized through simple maps insertable in the baseband part of the system.

    摘要翻译: 本发明涉及一种降低数字链路的发射滤波器的输出处的信号的峰值功率的方法,例如, 微波链接。 本发明的特征在于使用传输中的编码和接收中的解码,适于降低滤波信号的峰值功率。 在所公开的实施例中,不想限制,编码器和解码器可以通过可插入到系统的基带部分中的简单地图来实现。

    Method for stabilizing the operation of fractionally spaced sequalizer in digital signal receivers
    3.
    发明授权
    Method for stabilizing the operation of fractionally spaced sequalizer in digital signal receivers 失效
    用于稳定数字信号接收机中分数间隔均衡器的操作的方法

    公开(公告)号:US06240134B1

    公开(公告)日:2001-05-29

    申请号:US09132444

    申请日:1998-08-11

    IPC分类号: H03H730

    CPC分类号: H04L25/03044

    摘要: A method and/or system for the stable operation of fractionally spaced equalizers available in digital signal receivers, having a plurality of equalization coefficients, said equalization coefficients being updatableby minimizing a proper cost function and stabilizable through a proper change of said cost function, said change of said cost function requiring the use of a virtual noise matrix. According to the invention, the cost function (J) for the updating of the coefficients of the fractionally spaced equalizer (FSE) is changed by adding a cyclostationary virtual interference [v(t)].

    摘要翻译: 一种用于在数字信号接收机中可用的分数间隔均衡器的稳定操作的方法和/或系统,具有多个均衡系数,所述均衡系数可通过最小化适当的成本函数并通过所述成本函数的适当变化而可稳定地更新,所述变化 的所述成本函数需要使用虚拟噪声矩阵。 根据本发明,通过添加循环平稳虚拟干扰[v(t)]来改变用于更新分数间隔均衡器(FSE)的系数的成本函数(J)。