针对LTE下行分析仪的MQAM调制星座图识别方法
首发时间:2016-12-22
摘要:本文针对移动通信与信息系统实际工业应用(LTE下行信号分析仪)中三种MQAM信号调制星座图现有识别方法算法复杂度较高的问题,提出一个基于减法聚类的改良方法以及一个基于假设检验的以误差平方和为目标函数的判定方法,在数据长度较短的情况下,能够达到在保证信号分析仪高判断准确率的同时,显著缩减响应时间,实现实时判决。?????
关键词: 通信与信息系统 星座图识别 减法聚类 假设检验?????
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An MQAM Constellation Recognition Method for LTE downlink signal analyzer
Abstract:According to practical industrial applications (LTE downlink signal Analyzer) in telecommunication, the existing algorithms for constellation recognition are of great complexity. So in this article, an improved recognition method based on subtractive clustering and a new method based on hypothesis testing and sum of the squared errors will be proposed, which can ensure that with low SNR (Signal to Noise Ratio), we can reach a high accuracy rate, and at the same time, significantly reduce the complexity and time of calculation, thus to give a response in real time.
Keywords: Telecommunication Constellation recognition Subtractive clustering Hypothesis testing
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No.4713175116380914****
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