发明名称 |
METHOD AND DEVICE FOR MEASURING THE CURRENT SIGNAL-TO-NOISE RATIO WHEN DECODING LDPC CODES |
摘要 |
A method for measuring a signal-to-noise ratio when decoding Low Density Parity Check (LDPC) codes is provided. The method includes receiving from an input of a demodulator an input code word with “strong” or “weak” solutions, decoding the input code word in a LDPC decoder using a predetermined dependence of a mean number of iterations on the signal-to-noise ratio, recording a number of iterations performed during the decoding of the input code word, averaging derived values of the number of iterations for a specified time interval, estimating a signal-to-noise ratio based on averaged derived values of the number of iterations and based on the predetermined dependence of the mean number of iterations on the signal-to-noise ratio, and generating an output decoded code word. |
申请公布号 |
US2017041027(A1) |
申请公布日期 |
2017.02.09 |
申请号 |
US201615296650 |
申请日期 |
2016.10.18 |
申请人 |
Topcon Positioning Systems, Inc. |
发明人 |
Vazhenin Nikolay;Veitsel Andrey;Kirianov Ivan |
分类号 |
H03M13/00;H03M13/33;H03M13/11;H04B17/336;H04L1/00 |
主分类号 |
H03M13/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. (canceled) |
地址 |
Livermore CA US |