신호 대 잡음비 추정 시스템 및 그 방법
    1.
    发明公开
    신호 대 잡음비 추정 시스템 및 그 방법 失效
    信号噪声预报系统及其方法

    公开(公告)号:KR1020080098150A

    公开(公告)日:2008-11-07

    申请号:KR1020070043466

    申请日:2007-05-04

    CPC classification number: H04B17/336 H04L1/0016 H04L27/364

    Abstract: A signal to noise ratio estimating system and an estimating method thereof calculate SNR(Signal To Noise Ratio) by using signals corresponding to the level higher than the fixed absolute value for the received signal modulated in a reception end of a digital communications system using a high level modulation system. A look up table generating unit(10) stores an SNR value for a channel state according to the modulation method and generates the look up table. An SNR estimating unit(20) initializes parameters required for the SNR estimation, and determines and records the received signal over the standard value. The SNR estimating unit calculates a look up table address stored in the look up table generating unit, and outputs the SNR value of the corresponding address.

    Abstract translation: 一种信噪比估计系统及其估计方法,通过使用对应于高于固定绝对值的电平的信号来计算SNR(信噪比),该接收信号在使用高电平的数字通信系统的接收端调制的接收信号 电平调制系统。 查找表生成单元(10)根据调制方式存储信道状态的SNR值,并生成查询表。 SNR估计单元(20)初始化SNR估计所需的参数,并且确定并记录接收到的信号超过标准值。 SNR估计单元计算存储在查找表生成单元中的查找表地址,并输出相应地址的SNR值。

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