论文部分内容阅读
本文从工程应用的角度叙述了以付里叶变换为基础的谱分析方法和参数模型谱分析方法所面临的主要问题。前一部分包括细化变换、倒谱技术、希尔伯特变换和谱分析器与计算机之间的数据传输。后一部分包括模型的建立、AR 谱估计、最大熵谱估计以及计算方法与改进。阐明了各项基本定义与原理,并提出了应用例。
This paper describes the main problems faced by spectral analysis methods based on Fourier transform and spectral analysis methods of parametric models from the perspective of engineering application. The first part includes thinning transformations, cepstrum techniques, Hilbert transformation, and data transfer between the spectrum analyzer and the computer. The latter part includes model building, AR spectral estimation, maximum entropy spectrum estimation and calculation methods and improvements. Clarified the basic definitions and principles, and put forward examples of applications.