دانلود کتاب سیستم های فرکانس رادیویی سطح پایین

Low-level radio frequency (LLRF) systems of particle accelerators become more critical because they become a limiting factor with the increasing RF field stability requirements demanded by the free-electron laser (FEL) machines and the fourthgeneration synchrotron radiation sources. An LLRF system measures, regulates, and stabilizes the RF field used for beam acceleration and provides automation tools to set up, optimize, and automate the RF system operation. Designing an LLRF system is challenging. An LLRF physicist/engineer must have a wide range of cross-domain knowledge, such as RF/digital circuits, software engineering, signals and systems, control theory, digital signal processing, and beam physics. The primary goal of this book is to provide an overview of the basic knowledge required for analyzing and designing an LLRF system. We focus on the basic principles and algorithms without giving many details about concrete implementations. Realizing the RF signal detection, actuation, and control algorithms strongly depends on the technology (e.g., in hardware, firmware, or software) chosen by the designer and is out of the scope of this book. The research and development of LLRF systems continue to evolve with the emerging new requirements of new accelerator projects. More advanced algorithms, benefiting from the modern control theory and the machine learning progress, are being developed. This book will not cover all these new development because of the limitation of space. However, the basic algorithms covered by this book are sufficient for most LLRF systems and are a basis for developing advanced algorithms.