一种新的联合时频分析方法OA北大核心CSCD
A new joint time-frequency analysis method
根据信号对当前时刻的联合时频分布的贡献主要源于最近出现的信号的思想，提出了一种新的联合时频分布—渐忘分布。分析表明，渐忘分布具有非负、交叉项不明显及可用FFT实现快速计算等优点，且该分布的时频局域性可方便地通过选取不同的衰减因子进行调整。通过对典型信号的应用，进一步验证了渐忘分布的良好特性。
Considering that the current time joint time-frequencydistribution is mainly determined by the recent signal,a new time-frequency distribution—gradually forgetting distribution is brought in.It has been shown by theory and examples that the gradually forgetting distribution possesses the merits of non-negative,less cross-term,existence of fast algorithm and etc.furthermore,the frequency and time resolutions can be easily adjusted by selecting the decaying fa…查看全部>>
陈砚圃;卞正中;张介秋
西安交通大学,西安交通大学,空军工程学院,
信息技术与安全科学
信号联合时频分析渐忘分布
《通信学报》 2001 (1)
7-11,5
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