Then a two-path model and a DSSS-DQPSK system based on Matlab/Simulink Communication Toolkits are established for simulations in the next Chapters. Secondly, the performance of DSSS system under multipath channels and its influential parameters are systematically analyzed.
其次,本文系统地分析了直扩系统在多径信道下的性能和影响因素。
参考来源 - 直扩系统抗多径性能分析及补偿方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
It can be used in multipath channels to suppress multi-address interference and overcome multi-channel fading.
本文中提出的这种算法适用于多径衰落信道，能很好抵消多址干扰和克服多径衰落。
Channel delay estimation via pilot sub-carriers is used to provide accurate frame synchronization in multipath channels.
利用有限的导频信号进行信道延迟估计从而获得准确的符号同步。
A non blind channel estimation algorithm for orthogonal frequency division multiplexing (OFDM) systems in multipath channels was proposed.
提出了一种适用于正交频分复用通信系统的非盲信道估计算法。
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