公开(公告)号：US20140376662A1

公开(公告)日：2014-12-25

申请号：US14376556

申请日：2013-02-08

Applicant: Ericsson Modems SA

Inventor： Magnus Nilsson ,  Paavo Väänänen ,  Sami Tapani Vilhonen

IPC: H04L27/34 ,  H04L27/36

CPC classification number: H04L27/3405 ,  H04L27/361 ,  H04L27/363

Abstract: A modulator (100) comprises a polar generation stage (120) arranged for generating an amplitude component and a phase component of a modulation signal, a differentiator stage (150) arranged for generating a differentiated phase component by differentiating the phase component; and an event detection stage (170) arranged for detecting a high bandwidth event by detecting at least one of the amplitude component and the differentiated phase component meeting an event criterion. An inversion stage (130) is arranged for generating a modified amplitude component by inverting the amplitude component in response to detecting the high bandwidth event. A phase offset stage (150) is arranged for generating a modified differentiated phase component by, in response to detecting the high bandwidth event, adding to the differentiated phase component a phase offset having a magnitude of 180 degrees and a sign opposite to a sign of the differentiated phase component. An amplitude modulation stage (300) is arranged for employing the modified amplitude component to modulate the amplitude of a carrier signal, and a phase modulation stage (200) is arranged for employing the modified differentiated phase component to modulate the frequency of the carrier signal.

Abstract translation: 调制器（100）包括被布置用于产生调制信号的振幅分量和相位分量的极化发生级（120），通过微分相位分量来产生微分相位分量的微分器级（150） 以及事件检测级（170），用于通过检测符合事件标准的幅度分量和微分相位分量中的至少一个来检测高带宽事件。 布置了反转级（130），用于响应于检测到高带宽事件而反转振幅分量来产生修正的振幅分量。 相位偏移级（150）被布置用于通过响应于检测到高带宽事件而产生修正的微分相位分量，将微分相位分量加到具有180度的幅度的相位偏移和与 微分相分量。 调整幅度调制级（300）用于采用修正的幅度分量来调制载波信号的幅度，并且配置相位调制级（200），用于采用修改的微分相位分量来调制载波信号的频率。

公开(公告)号：US09036737B2

公开(公告)日：2015-05-19

申请号：US14376556

申请日：2013-02-08

Applicant: Ericsson Modems SA

Inventor： Magnus Nilsson ,  Paavo Väänänen ,  Sami Tapani Vilhonen

IPC: H04L27/36 ,  H04L27/34

CPC classification number: H04L27/3405 ,  H04L27/361 ,  H04L27/363

Abstract: A modulator comprises a polar generation stage that generates an amplitude and phase component of a modulation signal, a differentiator stage that generates a differentiated phase component by differentiating the phase component; and an event detection stage that detects a high bandwidth event by detecting the amplitude component and/or the differentiated phase component meeting an event criterion. An inversion stage generates a modified amplitude component by inverting the amplitude component in response to detecting the high bandwidth event. A phase offset stage generates a modified differentiated phase component by, in response to detecting the high bandwidth event, adding to the differentiated phase component a phase offset having a magnitude of 180° and a sign opposite to a sign of the differentiated phase component. Amplitude and phase modulation stages employ the modified amplitude component and the modified differentiated phase component to respectively modulate the amplitude and frequency of a carrier signal.

Abstract translation: 调制器包括产生调制信号的幅度和相位分量的极性产生级，通过微分相位分量产生微分相位分量的微分器级; 以及事件检测阶段，其通过检测满足事件标准的振幅分量和/或微分相位分量来检测高带宽事件。 响应于检测到高带宽事件，反转阶段通过反转振幅分量来产生修改的振幅分量。 相位偏移级通过响应于检测到高带宽事件而产生修正的微分相位分量，向微分相位分量加上具有180度幅度的相位偏移和与微分相位分量的符号相反的符号。 幅度和相位调制级采用修正的幅度分量和修正的微分相位分量来分别调制载波信号的幅度和频率。