一种无线信号调制分析算法改进技术  

A Technique for Imprving the Algorithm of Wireless Signal Modulation Analysis

作　　者：张艺瀚 韩翔 周钦山 ZHANG Yihan;HAN Xiang;ZHOU Qinshan(Ceyear Technologies Co.,Ltd.,Qingdao 266555,China;Shandong Provincial Electronic Measuring Instrument Technology Innovation Center,Qingdao 266555,China)

机构地区：[1]中电科思仪科技股份有限公司,山东青岛266555 [2]山东省电子测量仪器技术创新中心,山东青岛266555

出　　处：《电声技术》2024年第3期135-137,共3页Audio Engineering

基　　金：中国电子科技集团公司创新基金项目(KJ2202008)。

摘　　要：Wi-Fi信号调制分析技术是一种对Wi-Fi信号进行高精度解调,并测试信号的误差矢量幅度(Error Vector Magnitude,EVM),最终展现信号调制特性的测试分析技术。针对Wi-Fi被测设备发射及传输过程中信号质量测试需求,该技术为Wi-Fi相关设备的故障诊断及出厂测试提供了重要检测手段。基于此,提出相位跟踪修正技术和高精度信道估计技术,提高对信号进行调制分析的精度。Wi-Fi signal modulation analysis technology is a test and analysis technology that performs high-precision demodulation of Wi-Fi signals,tests the Error Vector Magnitude(EVM)of the signal,and finally shows the modulation characteristics of the signal.In order to meet the test requirements of signal quality during the transmission and transmission of Wi-Fi devices under test,this technology provides an important detection method for fault diagnosis and factory testing of Wi-Fi related devices.In this paper,the phase tracking correction technology and high-precision channel estimation technology are proposed to improve the accuracy of the signal modulation analysis.

关 键 词：WI-FI 信号调制分析 相位跟踪修正 高精度信道估计 

分 类 号：TP311.5[自动化与计算机技术—计算机软件与理论]