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2008_5

于 2020-12-23 发布 文件大小:126KB
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代码说明:

  在三条径的瑞利信道中,对于直接序列扩频: (1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法,接收机分别采用等均益合并、最大比合并。用Simulink进行仿真,测量BPSK的误码率性能,画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线,请解释在误码率为0.01时,两种合并方式所表现的不同的物理意义。 (2) 设频率已经同步,请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法,用Simulink进行仿真(自己编写代码S-Function方式),分析所设计方案的时间同步精度,画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已经同步,请设计DS-CDMA一种具体的频率方法,用Simulink进行仿真(自己编写代码S-Function方式),画出比特信噪比与频率同步误差的关系曲线。 (err)

文件列表:

2008_5
......\1
......\.\BER
......\.\...\DSCDMA2.fig
......\.\...\DS_CDMA2.mdl
......\.\...\DS_CDMA2_m.m
......\.\jfc
......\.\...\DS_CDMA1.mdl
......\.\...\DS_CDMA1_m.m
......\2
......\.\DSsyn.m
......\.\DSsynf.m
......\.\DST.fig
......\.\ds_t.mdl
......\.\ds_t_m.m
......\2008_5.doc
......\3
......\.\Fre_Offset_CDMA.m
......\.\Fre_Synchron.mdl
......\.\Fre_Syn_CDMA.m

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