Characteristic Analysis of White Gaussian Noise in S-Transformation Domain

• 作者: Mingzhe Zhu Xinliang Zhang Yue Qi
• 来源期刊: 电脑和通信(英文)
• 学科: 工学
• 关键词: Signal Detection S-TRANSFORM WHITE GAUSSIAN Noise X2 Distribution
• 年，卷（期）: 2014,（2）
• 页码范围: 20-24
• 页数: 5页
• 分类号: TN91

摘要

The characteristic property of white Gaussian noise (WGN) is derived in S-transformation domain. The results show that the distribution of normalized S-spectrum of WGN follows X2?distribution with two degrees of freedom. The conclusion has been confirmed through both theoretical derivations and numerical simulations. Combined with different criteria, an effective signal detection in S-transformation can be realized.