Xiaolong Li

This book highlights the system modeling, control, diagnosis and fault-tolerant design of the suspension, and guidance system of the high-speed maglev train based on electromagnetic suspension technology. The electromagnetic suspension technology has been widely used in real-life engineering, including maglev trains, magnetic bearings, magnetic levitation vibration isolators, magnetic suspension and balance systems for wind tunnels, etc. Based on the academic researches, engineering applications, and technical innovations of high-speed maglev trains carried out by the maglev team of the National University of Defense Technology, this book summarizes the technical achievements in the field of levitation and guidance control technology of high-speed maglev train. It analyzes the research status and challenges of the suspension control technology of the electromagnetic suspension maglev train. The suspension, guidance system modeling, and controller design of the high-speed maglev train are described in detail. The performance index and performance evaluation method of the levitation and guidance system under various working conditions are analyzed respectively. A suspension scheme of permanent magnet electromagnetic hybrid suspension high-speed maglev train is proposed, and the results of the vehicle test are given in order to further improve the suspension energy consumption and heating of electromagnetic suspension high-speed maglev train. The suspension and guidance fault diagnosis and tolerant control methods of the high-speed maglev train are studied to improve the system's safety and reliability. The research and application results of suspension control technology of electromagnetic suspension maglev train are fully displayed for readers. This book is intended for researchers, scientists, engineers, and graduate students involved in the rail transit industry, train control and diagnosis, and maglev technology.

This book gives an in-depth research on digital business environment as well as its indicators analysis by means of collecting huge data and cases in China. Additionally, it’s on the first try to apply bibliometric method to business environment literature review. The main contents of this book contain the research on the connotation and evaluation indicator system of digital business environment, and a series of excellent practices in improving the business environment in China in the aspects of digital infrastructure construction, digital market order, digital security, digital government application, digital literacy and innovation, etc. The expected readers are scholars who study business environment-related topics, groups interested in digital business environment, businessmen and officials. The most significant features of this book lie in its novel topics and detailed cases, which can help readers to have a more comprehensive and in-depth understanding of China's digital business environment construction.

This book gives an in-depth research on digital business environment as well as its indicators analysis by means of collecting huge data and cases in China. Additionally, it’s on the first try to apply bibliometric method to business environment literature review. The main contents of this book contain the research on the connotation and evaluation indicator system of digital business environment, and a series of excellent practices in improving the business environment in China in the aspects of digital infrastructure construction, digital market order, digital security, digital government application, digital literacy and innovation, etc. The expected readers are scholars who study business environment-related topics, groups interested in digital business environment, businessmen and officials. The most significant features of this book lie in its novel topics and detailed cases, which can help readers to have a more comprehensive and in-depth understanding of China's digital business environment construction.

Radar High-Speed Target Detection via Coherent Integration Transform offers a systematic presentation of high-speed radar target detection methods using coherent integration transforms including the signal model, derivations of coherent integration transforms, and definitions of related key concepts. The authors present mathematical models and design principles necessary to analyze the behavior of each type of coherent integration transform, and based on this, they introduce and convey new approaches and techniques for designing such transforms, which will help to achieve efficient signal integrators and detectors, especially in the challenging low signal-to-noise ratio (SNR) environments. The book will be of interest to graduate students and engineering professionals in statistical signal processing, signal detection and estimation, and radar signal processing.

The motion of the train depends on the traction of linear motors in the vehicle. This book describes a number of essential technologies that can ensure the safe operation of Maglev trains, such as suspension and orientation technologies, network control and diagnosis technologies. This book is intended for researchers, scientists, engineers and graduate students involved in the rail transit industry, train control and diagnosis, and Maglev technology.

The motion of the train depends on the traction of linear motors in the vehicle. This book describes a number of essential technologies that can ensure the safe operation of Maglev trains, such as suspension and orientation technologies, network control and diagnosis technologies. This book is intended for researchers, scientists, engineers and graduate students involved in the rail transit industry, train control and diagnosis, and Maglev technology.