公开(公告)号：US20100184396A1

公开(公告)日：2010-07-22

申请号：US12708847

申请日：2010-02-19

Applicant: Ravi SUBRAMANIAN

Inventor： Ravi SUBRAMANIAN

IPC: H04B1/16

CPC classification number: H04B1/0003 ,  H04B1/0007 ,  H04B1/28 ,  H04B1/406 ,  H04B1/70735 ,  H04B1/7085 ,  H04B2201/70701 ,  H04B2201/70711 ,  H04L25/0204

Abstract: A configurable all-digital coherent demodulator system for spread spectrum digital communications is disclosed herein. The demodulator system includes an extended and long code demodulator (ELCD) coupled to a traffic channel demodulator (TCD) and a parameter estimator (PE). The demodulator also includes a pilot assisted correction device (PACD) that is coupled to the PE and the TCD. The ELCD provides a code-demodulated signal to the TCD and the PE. In turn, the TCD provides a demodulated output data signal to the PE. The PACD corrects the phase error of the demodulated output data based on an error estimate that is fed forward from the PE. Accumulation operations in the ELCD, TCD, and PE are all programmable. Similarly, a phase delay in the PACD is also programmable to provide synchronization with the error estimate from the PE.

Abstract translation: 本文公开了一种用于扩频数字通信的可配置全数字相干解调器系统。 解调器系统包括耦合到业务信道解调器（TCD）和参数估计器（PE）的扩展和长码解调器（ELCD）。 解调器还包括耦合到PE和TCD的导频辅助校正装置（PACD）。 ELCD向TCD和PE提供码解调信号。 反过来，TCD向PE提供解调的输出数据信号。 基于从PE馈送的误差估计，PACD校正解调输出数据的相位误差。 ELCD，TCD和PE中的累加操作都可编程。 类似地，PACD中的相位延迟也是可编程的，以提供与来自PE的误差估计的同步。

公开(公告)号：US20120213251A1

公开(公告)日：2012-08-23

申请号：US13461104

申请日：2012-05-01

Applicant: Ravi SUBRAMANIAN

Inventor： Ravi SUBRAMANIAN

IPC: H04B1/707

CPC classification number: H04B1/0003 ,  H04B1/0007 ,  H04B1/28 ,  H04B1/406 ,  H04B1/70735 ,  H04B1/7085 ,  H04B2201/70701 ,  H04B2201/70711 ,  H04L25/0204

Abstract: A configurable all-digital coherent demodulator system for spread spectrum digital communications is disclosed herein. The demodulator system includes an extended and long code demodulator (ELCD) coupled to a traffic channel demodulator (TCD) and a parameter estimator (PE). The demodulator also includes a pilot assisted correction device (PACD) that is coupled to the PE and the TCD. The ELCD provides a code-demodulated signal to the TCD and the PE. In turn, the TCD provides a demodulated output data signal to the PE. The PACD corrects the phase error of the demodulated output data based on an error estimate that is fed forward from the PE. Accumulation operations in the ELCD, TCD, and PE are all programmable. Similarly, a phase delay in the PACD is also programmable to provide synchronization with the error estimate from the PE.

Abstract translation: 本文公开了一种用于扩频数字通信的可配置全数字相干解调器系统。 解调器系统包括耦合到业务信道解调器（TCD）和参数估计器（PE）的扩展和长码解调器（ELCD）。 解调器还包括耦合到PE和TCD的导频辅助校正装置（PACD）。 ELCD向TCD和PE提供码解调信号。 反过来，TCD向PE提供解调的输出数据信号。 基于从PE馈送的误差估计，PACD校正解调输出数据的相位误差。 ELCD，TCD和PE中的累加操作都可编程。 类似地，PACD中的相位延迟也是可编程的，以提供与来自PE的误差估计的同步。