Invention Grant
US08223861B2 Joint carrier synchronization and channel equalization method for OFDM systems
有权
OFDM系统的联合载波同步和信道均衡方法
- Patent Title: Joint carrier synchronization and channel equalization method for OFDM systems
- Patent Title (中): OFDM系统的联合载波同步和信道均衡方法
-
Application No.: US12585220Application Date: 2009-09-09
-
Publication No.: US08223861B2Publication Date: 2012-07-17
- Inventor: Muh-Tian Shiue , Chih-Feng Wu , Chorng-Kuang Wang
- Applicant: Muh-Tian Shiue , Chih-Feng Wu , Chorng-Kuang Wang
- Applicant Address: TW Taoyuan County
- Assignee: National Central University
- Current Assignee: National Central University
- Current Assignee Address: TW Taoyuan County
- Agency: Rosenberg, Klein & Lee
- Priority: TW98109273A 20090320
- Main IPC: H04K1/10
- IPC: H04K1/10 ; H04L27/00

Abstract:
A joint carrier synchronization and channel equalization method for OFDM systems, that is suitable for use in a receiver of said orthogonal frequency division multiplexer (OFDM) systems, comprising the following steps: firstly, receiving a reception signal sample of an OFDM symbol, and obtaining simultaneously a phase error and a gain error on each sub-channel in a frequency domain, through outputting a sub-channel signal on each said sub-channel in said frequency domain; next, obtaining an execution carrier frequency offset factor, an execution phase compensation factor, and an execution gain compensation factor based on said phase error and said gain error; and finally, eliminating a phase offset of said reception signal sample of a next symbol in a time domain based on said factors, and compensating a magnitude distortion and a phase distortion on each said sub-channel in said frequency domain for said reception signal of said next symbol.
Public/Granted literature
- US20100239033A1 Joint carrier synchronization and channel equalization method for OFDM systems Public/Granted day:2010-09-23
Information query