Notice that constructing the ARMA innovation model, a left co-prime factorization to a polynomial matrix must be performed, so that the ARMA innovation model can correctly be obtained.
应注意在构造ARMA新息模型时,必须进行多项式矩阵的左素分解,才能得到正确的ARMA新息模型。
By the way, when you guys do this, did anybody notice prime?
顺便问一下,你们刚才听课的时候,有人注意要加撇吗
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