Title:
SIGNAL PROCESSING SYSTEM, METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/091946
Kind Code:
A1
Abstract:
A signal processing system, method and device, capable of using a phase recovery device to receive feedback signals returned from an information iteration device, perform phase recovery on signals outputted by an equalizer according to the feedback signals, and then output the signals that have undergone phase recovery to a post filtering device, such that the post filtering device can perform noise filtering on the signals that have undergone phase recovery, and output the signals to the information iteration device. That is, phase recovery can be performed on the signals outputted by the equalizer on the basis of the feedback signals returned from the information iteration device; since the output from the information iteration device is a more accurate determination with respect to signals specifically, the above described processes can enhance the precision of phase recovery and reduce cycle skipping, thereby increasing the quality of input signals from the post filtering device. Therefore, the problem of being unable to improve the quality of input signals from the post filtering device with the current turbo iterative method can be solved, and overall system performance can be increased.
Inventors:
LIU LING (CN)
XIAO ZHIYU (CN)
LI LIANGCHUAN (CN)
XIAO ZHIYU (CN)
LI LIANGCHUAN (CN)
Application Number:
PCT/CN2015/095988
Publication Date:
June 08, 2017
Filing Date:
November 30, 2015
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L25/03
Foreign References:
| CN103931151A | 2014-07-16 | |||
| CN102215189A | 2011-10-12 | |||
| CN102394843A | 2012-03-28 | |||
| CN104065451A | 2014-09-24 | |||
| CN102165705A | 2011-08-24 | |||
| US20140199076A1 | 2014-07-17 |
Other References:
S AVORY, SEB J: "Digital Coherent Optical Receivers: Algorithms and Subsystems", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, vol. 16, no. 5, 17 May 2010 (2010-05-17), XP011309090
See also references of EP 3373536A4
See also references of EP 3373536A4
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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