应用科学学报 ›› 2010, Vol. 28 ›› Issue (3): 261-265.

• 信号与信息处理 • 上一篇    下一篇

用多元信号检测改进广义高斯噪声下的并行非线性检测器

王友国, 刘洪伟   

  1. 南京邮电大学理学院,南京210046
  • 收稿日期:2009-11-11 修回日期:2010-01-13 出版日期:2010-05-21 发布日期:2010-05-21
  • 作者简介:王友国,博士,教授,研究方向:信号与信息处理、应用数学,E-mail: wyg@njupt.edu.cn
  • 基金资助:

    江苏省高校自然科学基金(No.08KJB510012);江苏省青蓝工程项目基金(No.TJ207010)资助

Using Nonlinear Detector to Improve Detection of Multiple Signals in Generalized Gaussian Noise

WANG You-guo, LIU Hong-wei   

  1. College of Science, Nanjing University of Posts and Telecommunications, Nanjing 210046, China
  • Received:2009-11-11 Revised:2010-01-13 Online:2010-05-21 Published:2010-05-21

摘要:

在广义高斯噪声下,根据最大后验概率准则比较了多元信号的并行非线性检测和最佳并行线性检测. 在高斯噪声条件下,并行非线性检测器性能接近于最佳并行线性检测器. 若噪声是广义高斯的,特别是当噪声幅度集中于均值零附近时,并行非线性检测器的检测性能优于最佳并行线性检测器.

关键词: 多元信号检测, 广义高斯噪声, 线性检测器, 非线性检测器

Abstract:

Based on the maximum a posteriori probability criterion, performance of a parallel nonlinear detector is compared with that of the optimal parallel linear detector for detection of multiple signals in generalized Gaussian noise. Performance of the parallel nonlinear detector is close to that of the optimal parallel linear detector in Gaussian noise. For generalized Gaussian noise, however, the parallel nonlinear detector has better performance, especially when the noise values are concentrated around zero.

Key words: detection of multiple signals, generalized Gaussian noise, linear detector, nonlinear detector

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