通信技术
通信技術
통신기술
COMMUNICATIONS TECHNOLOGY
2013年
2期
67-69
,共3页
多频时分多址%检测%分离%时频分析
多頻時分多阯%檢測%分離%時頻分析
다빈시분다지%검측%분리%시빈분석
MF-TDMA%separation%time-frequency analysis
分析了 MF-TDMA 信号的作用以及特点,提出了对 MF-TDMA 信号进行检测的难点问题.根据MF-TDMA 信号的特征,利用 Simulink 搭建了一个仿真平台,分别对两种模式的 MF-TDMA 信号进行了信号的仿真生成,提出了多路混叠 MF-TDMA 信号基于 FICA 的分离的方法,并在 Matlab 中加以实现.通过对分离后的各单路信号进行时频分析,得到 MF-TDMA 信号频率和时隙参数的估计值.
分析瞭 MF-TDMA 信號的作用以及特點,提齣瞭對 MF-TDMA 信號進行檢測的難點問題.根據MF-TDMA 信號的特徵,利用 Simulink 搭建瞭一箇倣真平檯,分彆對兩種模式的 MF-TDMA 信號進行瞭信號的倣真生成,提齣瞭多路混疊 MF-TDMA 信號基于 FICA 的分離的方法,併在 Matlab 中加以實現.通過對分離後的各單路信號進行時頻分析,得到 MF-TDMA 信號頻率和時隙參數的估計值.
분석료 MF-TDMA 신호적작용이급특점,제출료대 MF-TDMA 신호진행검측적난점문제.근거MF-TDMA 신호적특정,이용 Simulink 탑건료일개방진평태,분별대량충모식적 MF-TDMA 신호진행료신호적방진생성,제출료다로혼첩 MF-TDMA 신호기우 FICA 적분리적방법,병재 Matlab 중가이실현.통과대분리후적각단로신호진행시빈분석,득도 MF-TDMA 신호빈솔화시극삼수적고계치.
@@@@Based on analysis of MF-TDMA signal functions and characteristics, the difficult problems in detecting and estimating MF-TDMA signal described, and with simulink, a simulation platform of MF-TDMA generator is designed and built up according to these signal characterisctics, and the MF-TDMA signals by two modes are generated. Finally, source separation method based on FICA for multiplexing MF-TDMA signals is proposed and implemented in Matlab. By time-frequency analysis of every single terminal signal, the estimated parameters of MF-TDMA signal, including frequency and time slot, could be acquired.
