离散幅度信号分析方法及其应用

• 作 者: 孙洪 姚天任
• 机 构: 华中理工大学电子与信息工程系,华中理工大学电子与信息工程系 武汉 430074,武汉 430074
• 出 处: 中国科学E辑:技术科学
• 发表日期: 1996年06期
• 关键词: 信号分析方法 多分辨率分析 实时信号处理 离散时间信号 信号量化 压缩编码 奇异点 带限信号 信号幅度 算法结构

研究离散幅度信号的分析方法.提出任意连续信号的二比特量化重构定理,建立了以信号量化精度作为尺度的多分辨率分析的概念.还分析了离散时间信号用二比特序列重构时的奇异点和求余效应.在实际信号处理应用中,用二比特量化重构定理,提供了一种有效的压缩编码方法;还利用量化精度多分辨率分析方法,实现了高速实时检测.理论和实验证明,提出的离散幅度信号分析方法是一种简单、有效的并行信号分析方法,尤为适于硬件实现.

The analytical method of discrete amplitude signal is studied.The two-bit quantization and reconstruction theorem of arbitrary continuous signal is proposed, and the concept of multi-resolution analysis based on signal quantization accuracy is established.At the same time, when two-bit sequence reconstruction of discrete-time signal Singularity points and the remainder effect.In the actual signal processing applications, using two-bit quantization reconstruction theorem provides an effective compression coding method, and also uses the multi-resolution analysis of quantitative accuracy to achieve high-speed real-time detection theory and Experiments show that the proposed discrete amplitude signal analysis method is a simple and effective parallel signal analysis method, especially suitable for hardware implementation.