最大熵譜估計(jì)法與傳統(tǒng)的譜估計(jì)法比較具有高分辨率、譜線平滑、適用于短數(shù)據(jù)序列等優(yōu)點(diǎn)，但是分辨率越高計(jì)算的工作量就越大，為了解決分辨率和計(jì)算速度二者的矛盾，本文在粘接質(zhì)量超聲檢測(cè)中使用DSP 實(shí)現(xiàn)最大熵譜估計(jì)，在保證高分辨率的情況下有效地提高了處理速度。
關(guān)鍵詞：粘結(jié)質(zhì)量；超聲檢測(cè)；最大熵譜估計(jì)；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