公开(公告)号：US20100264978A1

公开(公告)日：2010-10-21

申请号：US12744144

申请日：2008-11-21

申请人： Nicolas Sornin ,  Laurent Perraud

发明人： Nicolas Sornin ,  Laurent Perraud

IPC分类号： G06G7/16

CPC分类号： H04B1/403 ,  H04B1/28

摘要： System for converting a radiofrequency signal SRX so as to recover encoded information carried by the signal SRX, includes generating elements arranged to generate a signal SLO, mixing elements (3) arranged to generate a signal SRX-LO by mixing the signal SRX with the signal SLO, an analog/digital converter arranged to convert the signal SRXLO into a digital signal SRX-LO-Num, a device generating an error correction digital signal SCor, the device being arranged so that the signal SCor reflects the phase gap between the phase of the signal SLO and a phase setpoint, the phase setpoint being the phase of an ideal signal S0, ideal for recovering the encoded information carried by the signal SRX, combining elements arranged to generate the signal S0′Num by combining the signal SRX-LO-Num with the signal SCor. A system for converting a digital signal so as to send a radiofrequency analog signal carrying the information of the digital signal is also described.

摘要翻译： 用于转换射频信号SRX以恢复由信号SRX承载的编码信息的系统包括生成被配置为产生信号SLO的元件，通过将信号SRX与信号SRX混合而被布置以产生信号SRX-LO的混合元件（3） SLO是一种模拟/数字转换器，被配置为将信号SRXLO转换为数字信号SRX-LO-Num，该数字信号SRX-LO-Num是产生纠错数字信号SCor的装置，该装置被布置成使得信号SCor反映相位 信号SLO和相位设定点，相位设定点是理想信号S0的相位，理想地用于恢复由信号SRX承载的编码信息，组合用于通过组合信号SRX-LO- 数字与信号SCor。 还描述了一种用于转换数字信号以便发送携带数字信号的信息的射频模拟信号的系统。

公开(公告)号：US08406275B2

公开(公告)日：2013-03-26

申请号：US12720139

申请日：2010-03-09

申请人： Francois Sforza

发明人： Francois Sforza

IPC分类号： H04B1/00

CPC分类号： H04B1/69 ,  H04B2001/6912 ,  H04L27/12

摘要： A communications system includes a modulator for generating a chirp signal aimed at spreading the frequency spectrum of an information signal over a specified spectral bandwidth of a communications channel. The chirp signal has initial and final instantaneous frequency. The chirp signal is controlled from an in-phase control signal and a quadrature-phase control signal to have, in a complex plane, constant amplitude and instantaneous phase. The instantaneous frequency is defined by the speed the instantaneous phase is changed in the complex plane by the in-phase and quadrature-phase control signals; the instantaneous frequency is linearly changed between initial and instantaneous frequencies over the whole duration of the chirp signal; the initial and final instantaneous phases of the chirp signal are identical. The communications system also described an adapted demodulator capable of working even in presence of a significant frequency and/or timing offset between the transmitting and receiving clocking systems.

摘要翻译： 通信系统包括调制器，用于产生用于在通信信道的指定频谱带宽上扩展信息信号的频谱的啁啾信号。 啁啾信号具有初始和最终的瞬时频率。 啁啾信号由同相控制信号和正交相位控制信号控制，在复平面中具有恒定幅度和瞬时相位。 瞬时频率由瞬时相位在复平面中被同相和正交相位控制信号改变的速度定义; 瞬时频率在啁啾信号的整个持续时间内在初始和瞬时频率之间呈线性变化; 啁啾信号的初始和最终瞬时相位是相同的。 通信系统还描述了一种适配的解调器，其能够在发射和接收时钟系统之间存在显着的频率和/或定时偏移的情况下工作。

公开(公告)号：US20110064119A1

公开(公告)日：2011-03-17

申请号：US12720139

申请日：2010-03-09

申请人： Francois Sforza

发明人： Francois Sforza

IPC分类号： H04B1/69

CPC分类号： H04B1/69 ,  H04B2001/6912 ,  H04L27/12

摘要： A communications system includes a modulator for generating a chirp signal aimed at spreading the frequency spectrum of an information signal over a specified spectral bandwidth of a communications channel. The chirp signal has initial and final instantaneous frequency. The chirp signal is controlled from an in-phase control signal and a quadrature-phase control signal to have, in a complex plane, constant amplitude and instantaneous phase. The instantaneous frequency is defined by the speed the instantaneous phase is changed in the complex plane by the in-phase and quadrature-phase control signals; the instantaneous frequency is linearly changed between initial and instantaneous frequencies over the whole duration of the chirp signal; the initial and final instantaneous phases of the chirp signal are identical. The communications system also described an adapted demodulator capable of working even in presence of a significant frequency and/or timing offset between the transmitting and receiving clocking systems.

摘要翻译： 通信系统包括调制器，用于产生用于在通信信道的指定频谱带宽上扩展信息信号的频谱的啁啾信号。 啁啾信号具有初始和最终的瞬时频率。 啁啾信号由同相控制信号和正交相位控制信号控制，在复平面中具有恒定幅度和瞬时相位。 瞬时频率由瞬时相位在复平面中被同相和正交相位控制信号改变的速度定义; 瞬时频率在啁啾信号的整个持续时间内在初始和瞬时频率之间呈线性变化; 啁啾信号的初始和最终瞬时相位是相同的。 通信系统还描述了一种适配的解调器，其能够在发射和接收时钟系统之间存在显着的频率和/或定时偏移的情况下工作。

公开(公告)号：US08379770B2

公开(公告)日：2013-02-19

申请号：US12744144

申请日：2008-11-21

申请人： Nicolas Sornin ,  Laurent Perraud

发明人： Nicolas Sornin ,  Laurent Perraud

IPC分类号： H04L27/06

CPC分类号： H04B1/403 ,  H04B1/28

摘要： System for converting a radiofrequency signal SRX so as to recover encoded information carried by the signal SRX, includes generating elements arranged to generate a signal SLO, mixing elements (3) arranged to generate a signal SRX-LO by mixing the signal SRX with the signal SLO, an analog/digital converter arranged to convert the signal SRXLO into a digital signal SRX-LO-Num, a device generating an error correction digital signal SCor, the device being arranged so that the signal SCor reflects the phase gap between the phase of the signal SLO and a phase setpoint, the phase setpoint being the phase of an ideal signal S0, ideal for recovering the encoded information carried by the signal SRX, combining elements arranged to generate the signal S0′-Num by combining the signal SRX-LO-Num with the signal SCor. A system for converting a digital signal so as to send a radiofrequency analog signal carrying the information of the digital signal is also described.

摘要翻译： 用于转换射频信号SRX以恢复由信号SRX承载的编码信息的系统包括生成被配置为产生信号SLO的元件，通过将信号SRX与信号SRX混合而被布置以产生信号SRX-LO的混合元件（3） SLO是一种模拟/数字转换器，被配置为将信号SRXLO转换为数字信号SRX-LO-Num，该数字信号SRX-LO-Num是产生纠错数字信号SCor的装置，该装置被布置成使得信号SCor反映相位 信号SLO和相位设定点，相位设定点是理想信号S0的相位，理想地用于恢复由信号SRX携带的编码信息，组合被布置为通过组合信号SRX-LO而产生信号S0'-Num的元件 - 带有信号SCor。 还描述了一种用于转换数字信号以便发送携带数字信号的信息的射频模拟信号的系统。