This paper presented an improved algorithm for integrated trispectrum based on autoregressive (AR) spectral estimates instead of discrete Fourier transformation (DFT).

• 提出了一种适用于短序列、低信噪比条件下计算积分三谱 (Integrated Trispectrum)的改进算法 ；在积分三谱计算中将自回归 (AR)谱估计代替离散傅里叶变换 (DFT) ；得到了一个基于 AR谱估计的积分三谱算法 .