公开(公告)号：US20160323091A1

公开(公告)日：2016-11-03

申请号：US15034282

申请日：2014-11-13

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Takashi Inoue

IPC: H04L7/00 ,  H04L27/38

CPC classification number: H04L7/0016 ,  H04B10/6164 ,  H04B10/6165 ,  H04L7/0079 ,  H04L27/38

Abstract: A carrier recovery unit is provided including: separation-and-output section that outputs separated symbol group formed into block; a priori state-estimation section that obtains a priori estimate acquired by estimating values processed this time from among values of intra-block frequency and central phase processed last time; provisional compensation section that provisionally compensates the phase of each separated symbol based on the a priori estimation phase; decision section that performs decision based on the reference signal for the symbol before decision, and obtains symbol after decision; error-estimation section that calculates the frequency and phase errors; a posteriori state-estimation section that obtains a posteriori estimate based on the frequency and phase errors; actual compensation section that actually compensates the phase based on the a posteriori estimation phase; and feedback processing section that feeds back the a posteriori estimate as the values processed last time to the a priori state estimation section.

Abstract translation: 提供一种载波恢复单元，包括：分离和输出部分，其输出形成块的分离符号组; 先验状态估计部，其通过从上次处理的块内频率和中心相位的值估计该时刻处理的值来获取获取的先验估计; 临时补偿部分，其基于先验估计阶段临时补偿每个分离符号的相位; 决定部，根据决定前的符号的参照信号进行判定，判定后得到符号; 误差估计部分，计算频率和相位误差; 后验状态估计部分，其基于频率和相位误差获得后验估计; 实际补偿部分，根据后验估计阶段实际补偿相位; 以及反馈处理部，其将后验估计作为上次处理的值反馈到先验状态估计部。

公开(公告)号：US09722768B2

公开(公告)日：2017-08-01

申请号：US15034282

申请日：2014-11-13

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Takashi Inoue

IPC: H04L27/06 ,  H04L7/00 ,  H04L27/38 ,  H04B10/61

CPC classification number: H04L7/0016 ,  H04B10/6164 ,  H04B10/6165 ,  H04L7/0079 ,  H04L27/38

Abstract: A carrier recovery unit is provided including: separation-and-output section that outputs separated symbol group formed into block; a priori state-estimation section that obtains a priori estimate acquired by estimating values processed this time from among values of intra-block frequency and central phase processed last time; provisional compensation section that provisionally compensates the phase of each separated symbol based on the a priori estimation phase; decision section that performs decision based on the reference signal for the symbol before decision, and obtains symbol after decision; error-estimation section that calculates the frequency and phase errors; a posteriori state-estimation section that obtains a posteriori estimate based on the frequency and phase errors; actual compensation section that actually compensates the phase based on the a posteriori estimation phase; and feedback processing section that feeds back the a posteriori estimate as the values processed last time to the a priori state estimation section.