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An Efficient Short Sequence Power Spectrum Estimation Method and Its Application
Author(s): 
Pages: 372-375,382
Year: Issue:  6
Journal: RADAR SCIENCE AND TECHNOLOGY

Keyword:  最大熵方法伯格算法数字信号源;
Abstract: 由于实际中采集到的数据量总是有限的,所以要准确获得待研究数据的特性必须采用高效的短序列估计方法.本文提出了一种基于伯格算法的新的短序列谱估计方法,该方法在阶数估计时引入收敛因子,从而更为有效地估计了阶数;同时不直接用伯格算法计算反射系数,而是先求得二阶预测误差系数,继而求一阶反射系数,再进一步求得高阶系数来实现谱估计.计算机仿真表明,这种算法可以有效地减小谱偏,提高谱分辨率.
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