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在超声检测中使用DSP实现最大熵谱估计
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格式:rar |
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2009-08-07
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最大熵谱估计法与传统的谱估计法比较具有高分辨率、谱线平滑、适用于短数据序列等优点，但是分辨率越高计算的工作量就越大，为了解决分辨率和计算速度二者的矛盾，本文在粘接质量超声检测中使用DSP 实现最大熵谱估计，在保证高分辨率的情况下有效地提高了处理速度。
关键词：粘结质量；超声检测；最大熵谱估计；DSP
Abstract: comparing with the traditional spectrum estimation way, the method of maximum entropy spectrum estimation has the advantages of high distinguishability, smooth spectral line, suitting short data, and so on. But the higher distinguishability is, the more the computation is. So in this article the algorithm of maximum entropy estimation is realized with DSP in the ultrasonic detection on bonding quality, and the contradiction between speed
and distinguishability is resolved.
Key words: bonding quality；ultrasonic detection；Maximum entropy spectrum estimation；DSP
关键词：粘结质量；超声检测；最大熵谱估计；DSP
Abstract: comparing with the traditional spectrum estimation way, the method of maximum entropy spectrum estimation has the advantages of high distinguishability, smooth spectral line, suitting short data, and so on. But the higher distinguishability is, the more the computation is. So in this article the algorithm of maximum entropy estimation is realized with DSP in the ultrasonic detection on bonding quality, and the contradiction between speed
and distinguishability is resolved.
Key words: bonding quality；ultrasonic detection；Maximum entropy spectrum estimation；DSP
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