Invention Grant
US08499218B2 System and method for determining quasi-cyclic low-density parity-check codes having high girth
有权
用于确定具有高周长的准循环低密度奇偶校验码的系统和方法
- Patent Title: System and method for determining quasi-cyclic low-density parity-check codes having high girth
- Patent Title (中): 用于确定具有高周长的准循环低密度奇偶校验码的系统和方法
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Application No.: US13251143Application Date: 2011-09-30
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Publication No.: US08499218B2Publication Date: 2013-07-30
- Inventor: Jonathan Yedidia , Stark Draper , Yige Wang
- Applicant: Jonathan Yedidia , Stark Draper , Yige Wang
- Applicant Address: US MA Cambridge
- Assignee: Mitsubishi Electric Research Laboratories, Inc.
- Current Assignee: Mitsubishi Electric Research Laboratories, Inc.
- Current Assignee Address: US MA Cambridge
- Agent Dirk Brinkman; Gene Vinokur
- Main IPC: H03M13/00
- IPC: H03M13/00
Abstract:
A method estimates parameters of 3-phase voltage signals to synchronize a power grid in a presence of a voltage unbalance by transforming the 3-phase voltage signals to αβ-reference signals using a Clarke transformation matrix, and estimating sinusoidal signals and corresponding quadrature signals of the αβ-reference signals using an extended Kalman filter, and determining a phase angle of a positive sequence based on a relationship of the phase angle to the estimated the sinusoidal signals.
Public/Granted literature
- US20130086456A1 System and Method for Determining Quasi-Cyclic Low-Density Parity-Check Codes Having High Girth Public/Granted day:2013-04-04
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