Parallel Wiener-Hammerstein Time Series

A Parallel Wiener-Hammerstein system is a nonlinear dynamical system obtained by connecting multiple Wiener-Hammerstein systems in parallel. Each parallel branch contains a static nonlinearity that is sandwiched in between two linear time-invariant (LTI) blocks. The presence of the two LTI blocks, and the parallel branches results in a problem that is harder to identify. The LTI blocks are realized as active filters while the static nonlinearity is implemented as a diode-resistor electronic circuit.<br>The provided data was part of a previously published Automatica paper available online at Sciencedirect or as an ArXiv preprint. The Parallel Wiener-Hammerstein system, the measurement setup, and the input signals used are detailed in Section 10 of the aforementioned paper. <br>This zip-file contains multiple measured input-output time series: a multisine estimation/validation data set, and a multisine and increasing-amplitude test data set. The data is available in the .csv and .mat file format.并行维纳-哈默斯坦因系统（Parallel Wiener-Hammerstein system）是一类通过将多个维纳-哈默斯坦因系统并行连接得到的非线性动力学系统。每个并行支路均包含一个静态非线性环节，该环节夹在两个线性时不变（LTI）模块之间。由于存在两个LTI模块与多条并行支路，该系统的辨识难度更高。其中LTI模块以有源滤波器形式实现，静态非线性环节则通过二极管-电阻电子电路构建。 本次提供的数据集源自一篇已发表的《Automatica》期刊论文，可在ScienceDirect平台或ArXiv预印本平台获取。前述论文的第10章节详细阐述了该并行维纳-哈默斯坦因系统、测量装置以及所用输入信号的相关信息。 该压缩包包含多组实测输入输出时间序列：一组为多频信号（multisine）估计/验证数据集，另一组为多频信号与增幅信号测试数据集。数据集以.csv与.mat格式存储。