基于这种新的函数理论可以形成一个包含不确定性的连续与离散统一的完备的信号理论
许奔月
有限精度的完备的信号理论[EB/OL]
北京:中国科技论文在线
这种不完备性来自于作为其数学基础的函数理论的不足
在此基础上所导出的一组有限精度的Fourier公式包含了时间和频率的不确定性
) 摘要: 指出现代信号理论存在着不完备性
有限精度函数理论
将实数域上的无限精度的函数理论加以改进和扩展为实数等价类集合上的有限精度的函数理论
从而构成了一个完备的有限精度的体系
) Abstract: It points out the incompleteness in our existing signal theory which results from the deficiency of our function theory as it’s mathematical basis
We improve and enlarge the infinite precision function theory to a finite precision one defined on the set of real number equivalence classes instead of the real number domain
Base on the new function theory, we can establish a complete signal theory containing uncertainty applicable to continuous and discrete domain
Furthermore, we derive a set of finite precision Fourier formulas containing the uncertainty in time and frequency, which represents the symmetry of time and frequency domain as well as the unity of continuousness and discreteness thereby forming a complete finite precision system
Keywords: Shannon sampling theorem, signal theory, finite precision function theory, Fourier analysis
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