公开(公告)号：WO2005022858A1

公开(公告)日：2005-03-10

申请号：PCT/IL2004/000729

申请日：2004-08-05

Applicant: DATA-JCE ELECTRONICS LTD. ,  VITENBERG, Roman

Inventor： VITENBERG, Roman

IPC: H04L27/26

CPC classification number: H04L27/0004

Abstract: A transceiver system and method for transmission of information data over a communication line are described. The transceiver system comprises a transmitter and a receiver. The transmitter includes a synthesis filter bank and an overlapping unit downstream of said synthesis filter bank. The synthesis filter bank is configured for generating a set of wavelets and modulating thereof. The overlapping unit is configured for generating a multicarrier signal carrying the information data and providing thereof to the communication line. The receiver includes a separating unit and an analyzing filter bank downstream of the separating unit. The separating unit includes a separating shift register and a parallel register arranged downstream of said separating shift register. The analyzing filter bank includes an N-points FFT unit and a demodulator coupled to the N-points FFT unit. The method includes at the transmitter end the steps of providing a sequence of prototype wavelets by using N-points IFFT, modulating the sequence of the prototype wavelets by said information data, overlapping the modulated prototype wavelets to generate a multicarrier signal carrying the information data. The method includes at the transmitter end the steps of separating the overlapped wavelets from the received multicarrier signal distorted by a noise, analyzing the separated wavelets by using an N-points FFT, and demodulating spectral frequency amplitudes of the wavelets to provide the information data.

Abstract translation: 描述了一种用于通过通信线路传输信息数据的收发机系统和方法。 收发机系统包括发射机和接收机。 发射机包括合成滤波器组和在所述合成滤波器组下游的重叠单元。 合成滤波器组被配置用于产生一组小波并对其进行调制。 重叠单元被配置用于生成携带信息数据并将其提供给通信线路的多载波信号。 接收器包括分离单元和分离单元下游的分析滤波器组。 分离单元包括分离移位寄存器和布置在所述分离移位寄存器下游的并行寄存器。 分析滤波器组包括N点FFT单元和耦合到N点FFT单元的解调器。 该方法包括在发射端，通过使用N点IFFT提供原型小波序列的步骤，通过所述信息数据调制原型小波的序列，与调制的原型小波重叠以产生携带信息数据的多载波信号。 该方法包括在发射机端分离重叠小波与由噪声失真的接收多载波信号分离的步骤，通过使用N点FFT分析分离的小波，以及解调小波的频谱频率振幅以提供信息数据。