公开(公告)号：EP0536687A3

公开(公告)日：1993-11-03

申请号：EP92117020.5

申请日：1992-10-06

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Denno, Satoshi ,  Saito, Yoichi

IPC分类号： H04L27/22

CPC分类号： H04L27/2332 ,  H04L2027/003 ,  H04L2027/0048

摘要： A method and an apparatus for demodulation with adaptive phase control in quasi-coherent detection, capable of compensating detection phase error due to the initial phase error and the frequency error at high speed and high quality, without a complicated circuit configuration and a significant delay. In the apparatus, a frequency error in the modulated complex input signals is estimated by using a phase variation during one symbol dine to the frequency error according to the modulated complex input signals and the demodulated complex signals for present and immediately previous symbols; an initial phase error in the modulated complex input signals is estimated according to the modulated complex input signals, the demodulated complex signals, and the estimated frequency error; and the demodulated complex signals are obtained by applying optimum phase compensation determined according to the estimated frequency error and the estimated initial phase error, to the modulated complex input signals.

公开(公告)号：EP0536687A2

公开(公告)日：1993-04-14

申请号：EP92117020.5

申请日：1992-10-06

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Denno, Satoshi ,  Saito, Yoichi

IPC分类号： H04L27/22

CPC分类号： H04L27/2332 ,  H04L2027/003 ,  H04L2027/0048

摘要： A method and an apparatus for demodulation with adaptive phase control in quasi-coherent detection, capable of compensating detection phase error due to the initial phase error and the frequency error at high speed and high quality, without a complicated circuit configuration and a significant delay. In the apparatus, a frequency error in the modulated complex input signals is estimated by using a phase variation during one symbol dine to the frequency error according to the modulated complex input signals and the demodulated complex signals for present and immediately previous symbols; an initial phase error in the modulated complex input signals is estimated according to the modulated complex input signals, the demodulated complex signals, and the estimated frequency error; and the demodulated complex signals are obtained by applying optimum phase compensation determined according to the estimated frequency error and the estimated initial phase error, to the modulated complex input signals.

摘要翻译： 的方法以及一种用于在准相干检测的自适应相位控制，能够补偿检测相位误差的解调装置，由于初始相位误差和以高速和高质量的频率误差，而无需复杂的电路结构和显著延迟。 在该设备中，在经调制的复输入信号中的频率误差，通过使用一个相位变化的一个符号啶频率误差gemäß到调制的复输入信号，并且用于当前和紧邻的前一码元解调的复信号期间估算; 在经调制的复输入信号初始相位误差估计gemäß到调制的复输入信号，解调复信号，并且所估计的频率误差; 和解调的复信号通过施加最佳相位补偿确定性开采gemäß于所估计的频率误差和所估计的初始相位误差，对调制后的复数输入信号而获得。

公开(公告)号：EP0536687B1

公开(公告)日：1999-04-14

申请号：EP92117020.5

申请日：1992-10-06

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Denno, Satoshi ,  Saito, Yoichi

IPC分类号： H04L27/22

CPC分类号： H04L27/2332 ,  H04L2027/003 ,  H04L2027/0048