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基于Cauchy-Schwarz不等式的实用位同步算法
A New Practical Synchronization Arithmetic Based on Cauchy-Schwarz Inequation
【摘要】 简要介绍了正交频分复用 (OFDM)系统中目前常使用的基于最大后验概率 (MAP)的同步算法 ,并提出和证明了一种新的基于欧氏空间Cauchy Schwarz不等式的实用同步算法。对这两种同步算法进行了计算机仿真对比。仿真结果显示 ,所提的新算法在慢衰落无线信道上具有比基于MAP的同步算法更好的表现特性
【Abstract】 In this paper, MAP, a traditional synchronization method for an OFDM system, is analyzed first. Then a simplified and practical synchronization method is presented for this kind of system, which is convenient for realization with DSP. The simulations show that this Cauchy Schwarz inequation based arithmetic can be used to synchronize an OFDM system in slowly fading radio channels and has a better performance than MAP.\;
【关键词】 互交频分复用;
位同步算法;
最大后验概率;
CauchySchwarz不等式;
【Key words】 OFDM; Synchronization arithmetic; MAP; Cauchy Schwarz inequation;
【Key words】 OFDM; Synchronization arithmetic; MAP; Cauchy Schwarz inequation;
【基金】 “十五”国防科技预研项目资助课题
- 【文献出处】 系统工程与电子技术 ,Systems Engineering and Electronics , 编辑部邮箱 ,2003年07期
- 【分类号】TN919.3
- 【被引频次】1
- 【下载频次】99