【摘要】 为探测强噪声干扰下的复杂系统性能,实现了快速m序列变换(F ast m-sequence transform,FM T)算法。在对一般m序列和互补特征m序列的相关函数等属性分析的基础上,探讨了FM T的内部机制及排列矩阵的构造原理,并针对不同的本原多项式,找出了排列矩阵对应的下标索引向量。仿真实验表明基于FM T的冲激响应测量法具有很高的准确性和抗噪声性能。更多还原

【Abstract】 To explore the characteristic of the complicated system under powerful noise disturbances,a fast m-sequence transform(FMT) algorithm is implemented.By analyzing the property of the correlation function and other number-theory properties of the general m-sequence and the reciprocal-characteristic m-sequence,the principle of FMT and the construction of the permutation matrix are analyzed.Moreover,different index vectors corresponding to different primitive polynomials are given.Simulation of the determining complicated system shows that the impulse response computed by FMT has high accuracy and good noise immunity.更多还原