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    • 3. 发明授权
    • Method and device for carrier-frequency synchronization of a vestigial-sideband-modulated signal
    • 遗留边带调制信号的载波频率同步的方法和装置
    • US07587003B2
    • 2009-09-08
    • US11301641
    • 2005-12-13
    • Jochen PliquettThomas Reichert
    • Jochen PliquettThomas Reichert
    • H03D1/24
    • H04L7/027H04L7/007H04L27/066H04L2027/0065H04L2027/0067
    • A method and a device for carrier-frequency synchronization of a vestigial-sideband-modulated received signal (rVSB(t)) with a carrier signal (ej(2π(fT+Δf)t+Δφ)), which is affected by a frequency offset and/or phase offset (Δf, Δφ), estimates the frequency offset and/or phase offset (Δf, Δφ) of the carrier signal (ej(2π(fT+Δf)t+Δφ)) by means of a maximum-likelihood estimation. For this purpose, the vestigial-sideband-modulated received signal (rVSB(t)) is converted into a modified vestigial-sideband-modulated received signal (xVSB′(t′)), which provides time-discrete complex rotating phasors (|xVSB′(t′)|·ej2πΔf·t′+Δφ), in which only the time-discrete phases (2πΔft′+Δφ) are dependent upon the frequency offset and/or phase offset (Δf, Δφ).
    • 一种用于载波信号(ej(2pi(f2t2 + Deltaf)t + Deltaphi)的残留边带调制接收信号(rVSB(t))的载波频率同步的方法和装置) )被频率偏移和/或相位偏移(Deltaf,Deltaphi)影响,估计载波信号的频率偏移和/或相位偏移(Deltaf,Deltaphi)(ej(2pi(f < sub2> + Deltaf)t + Deltaphi))。 为此,将残留边带调制接收信号(rVSB(t))转换为经修改的残留边带调制接收信号(xVSB'(t')),其提供时间离散复数旋转相量(| xVSB '(t')| .ej2piDeltaf.t'+ Deltaphi),其中只有时间离散相位(2piDeltaft'+ Deltaphi)取决于频率偏移和/或相位偏移(Deltaf,Deltaphi)。
    • 6. 发明申请
    • Method and device for clock synchronisation with a vestigial-sideband-modulated transmitted signal
    • 用于与残留边带调制的发射信号进行时钟同步的方法和装置
    • US20060208786A1
    • 2006-09-21
    • US11302320
    • 2005-12-13
    • Jochen PliquettThomas Reichert
    • Jochen PliquettThomas Reichert
    • H03D1/24G06G7/25
    • H04L7/027H04L7/007
    • A method for clock synchronisation between an amplitude-modulated or phase-modulated received signal (r(t)) and a transmitted signal (s(t)) estimates the timing offset (ε) between the received signal (r(t)) and the transmitted signal (s(t)) by means of a maximum-likelihood method. The maximum-likelihood method in this context is realised by an estimation filtering (S40; S140) dependent upon the transmission characteristic, a subsequent nonlinear signal-processing function (S50; S150) and an averaging filtering (S60, S100; S180, S200). The received signal (r(t)) is especially a modified vestigial-sideband-modulated received signal (rVSB′(t)). The nonlinear signal-processing function (S50; S150) maintains the alternating component in the spectrum of the pre-filtered vestigial-sideband-modulated received signal (vVSB′(t)).
    • 在幅度调制或相位调制接收信号(r(t))和发送信号(s(t))之间的时钟同步的方法估计接收信号(r(t))和 通过最大似然法发射信号(s(t))。 在此上下文中的最大似然法通过依赖于传输特性的估计滤波(S 40; S 140),随后的非线性信号处理功能(S 50; S 150)和平均滤波(S 60,S 100; S 180,S 200)。 所接收的信号(r(t))特别是经修改的残留边带调制接收信号(r“VSB”(t))。 非线性信号处理功能(S 50; S 150)维持预滤波的残留边带调制接收信号(v VSB)(t)的频谱中的交替分量。
    • 9. 发明授权
    • Method and device for clock synchronisation with a vestigial-sideband-modulated transmitted signal
    • 用于与残留边带调制的发射信号进行时钟同步的方法和装置
    • US07778359B2
    • 2010-08-17
    • US11302320
    • 2005-12-13
    • Jochen PliquettThomas Reichert
    • Jochen PliquettThomas Reichert
    • H03D1/24
    • H04L7/027H04L7/007
    • A method for clock synchronisation between an amplitude-modulated or phase-modulated received signal (r(t)) and a transmitted signal (s(t)) estimates the timing offset (ε) between the received signal (r(t)) and the transmitted signal (s(t)) by means of a maximum-likelihood method. The maximum-likelihood method in this context is realised by an estimation filtering (S40; S140) dependent upon the transmission characteristic, a subsequent nonlinear signal-processing function (S50; S150) and an averaging filtering (S60, S100; S180, S200). The received signal (r(t)) is especially a modified vestigial-sideband-modulated received signal (rVSB′(t)). The nonlinear signal-processing function (S50; S150) maintains the alternating component in the spectrum of the pre-filtered vestigial-sideband-modulated received signal (vVSB′(t)).
    • 在幅度调制或相位调制接收信号(r(t))和发射信号(s(t))之间的时钟同步的方法估计接收信号(r(t))之间的定时偏移(&egr) 和发射信号(s(t))。 在上下文中的最大似然法通过依赖于传输特性的估计滤波(S40; S140),随后的非线性信号处理功能(S50; S150)和平均滤波(S60,S100; S180,S200)来实现, 。 接收信号(r(t))特别是经修改的残留边带调制接收信号(rVSB'(t))。 非线性信号处理功能(S50; S150)维持预滤波的残留边带调制接收信号(vVSB'(t))的频谱中的交替分量。