An Algorithm for Real-Time Implementation of Generalized Time-Frequency Representations

程俊; 易克初; 刘丰

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An Algorithm for Real-Time Implementation of Generalized Time-Frequency Representations

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- An Algorithm for Real-Time Implementation of Generalized Time-Frequency Representations
- Acta Electronica Sinica Issue 1, (1997)
- 作者机构：
  
  西安电子科技大学综合业务网国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP301.6
- Published：1997
- 稿件说明：
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[1]程俊,易克初,刘丰.广义时频表示的一种实时实现方法[J].电子学报,1997(01):67-72.

程俊, 易克初, 刘丰. An Algorithm for Real-Time Implementation of Generalized Time-Frequency Representations[J]. Acta Electronica Sinica, 1997, (1).
[1]程俊,易克初,刘丰.广义时频表示的一种实时实现方法[J].电子学报,1997(01):67-72. DOI：

程俊, 易克初, 刘丰. An Algorithm for Real-Time Implementation of Generalized Time-Frequency Representations[J]. Acta Electronica Sinica, 1997, (1). DOI：

摘要

本文研究了广义时频表示的实时实现算法及其算法优化问题．从广义局域自相关函数的物理意义出发，论证了广义时频表示的实时计算采用短时处理技术的可行性．并从两处着眼优化了算法，一是利用核函数共轭对称性，使时颁表示的计算复杂度降低一半多；二是在计算解析信号过程中，给出了以任意帧移间隔的时域递推算法，进一步减少了实时算法的计算量．

Abstract

This paper studied on real-time computation of generalized time-frequency representations （GTFRs ）and its optimizing. From the conception of generalized local autocorrelation

we discuss the problem that real-time computation of GTFRs can be performed by means of short time processing. Furthermore

this paper proposes an algorithm optimized in such two aspects as: （1） reducing the computational complexity more than twice by taking advantage of conjugated symmetry of the kernel function for some GTFRs ; （2） deducing a time domain recursive algorithm for the computation of analytic signals accurately with any frame shift interval.

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