non-GaussianCOCA¹⁹⁰²⁰⁴BNC²³⁶²¹³⁺¹ 基本例句 非高斯¹⁰⁰ By exploiting wavelet packet transform to analyze signals both in time and frequency space, this paper researches the statistic property of non-Gaussian stationary noise and its signal structure. 该文利用小波包变换的时频局部分析能力，研究了非高斯分布平稳随机噪声的统计特性，揭示了非高斯噪声信号的信号结构。 cnki