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利用有限域上迹函数的性质,讨论了一类非线性扩频序列:级联GMW序列的三项式特性,即移位相加性。给出了此类序列的三项式时,并对级联GMW序列的性质作了一些讨论。
By using the properties of trace functions on finite fields, a class of nonlinear spreading sequences is discussed: the triad characteristic of the cascaded GMW sequences, namely the shift additiveity. Given the trinomials of such sequences, some discussion of the nature of the cascaded GMW sequences is given.