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信噪比估计方法研究 被引量:6

Research on SNR estimation algorithm
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摘要 在QPSK调制方式下,分别研究推导了基于辅助数据的极大似然比信噪比估计算法研究、基于矩的信噪比估计算法研究以及基于高阶累积量的信噪比估计算法。通过仿真比较了信噪比估计算法的性能,着重分析比较了采用的迭代次数及数据长度等参数对算法性能的影响,最终根据算法各自的特点给出了相应的适用范围。 This paper researches the SNR estimation algorithms that based on the data-aided maximum likelihood SNR estimator ,based on the order and high order moments SNR estimation method of QPSK modulation signals. The simulation result compares the algorithms and shows the influence of iteration numbers and the data length parameters on the performance of the algorithm. Finally, the paper gives the applicable range according to the features of each estimator.
作者 徐卓异 王兵
出处 《电子设计工程》 2013年第6期135-137,141,共4页 Electronic Design Engineering
关键词 信噪比估计 辅助数据 QPSK信号 高阶累积量 SNR estimator data-aided QPSK signal high order moments
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参考文献6

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二级参考文献5

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引证文献6

二级引证文献11

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