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请大神帮帮忙修改此英文摘要（附中文），自己改了几次了，还是不通过，万分感谢
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为解决传统信道估计方法在稀疏信道估计的性能不够理想，许多算法没有考虑到导频放置等问题，将压缩感知理论(Compressed Sensing，CS)应用到稀疏信道估计中。开展基于CS理论测量矩阵互相关最小化的导频图案设计准则的分析，提出信道估计均方误差最小准则来选择CS算法的方法，建立OFDM系统模型和导频设计方案。仿真结果表明：改进的离散随机近似方案的导频设计，比遍历性搜索收敛更快更有效，对基于OMP算法的信道估计性能有较大幅度提升。 In order to solve the problems of the conventional channel estimation method is not ideal in the performance of sparse channel estimation，Many algorithms do not take into account the pilot placement。The compressed sensing theory is applied to sparse channel estimation was investigated。After the analysis of pilot pattern design criteria based on the CS theory measurement matrix cross-correlation minimization，A method was presented to the channel estimation mean square error criterion to select the CS algorithm，The OFDM system model and the pilot programs was established。The simulation results show that：The pilot design for discrete stochastic approximation schemes for improvement，than the ergodicity search converges faster and more efficiently，the based on OMP algorithm of channel estimation performance is higher。 |
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scgyhjy: 金币+5, 翻译EPI+1, ★★★★★最佳答案, 谢谢 2013-09-06 08:21:37
scgyhjy: 金币+5, 翻译EPI+1, ★★★★★最佳答案, 谢谢 2013-09-06 08:21:37
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In order to solve the problems caused by conventional channel estimation method which is not ideal in the performance of sparse channel estimation，many algorithms do not take into account the pilot placement. The compressed sensing theory applied to sparse channel estimation was investigated. After the analysis of pilot pattern design criteria based on the CS theory measurement matrix cross-correlation minimization，a method was presented to the channel estimation mean square error criterion to select the CS algorithm，The OFDM system model and the pilot programs was established. The simulation results show that the modified pilot design for discrete stochastic approximation schemes is faster and more efficiently than the ergodicity search converges. Simultaneously, the channel estimation performance based on OMP algorithm is improved. 不光楼主写的英文看不懂，中文我也看不懂，感觉中间衔接的没有什么逻辑性。只能粗略改一下了……………… |
2楼2013-09-05 16:33:34
xux730
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3楼2013-09-06 00:05:55
