Space Terahertz Remote Sensing Technology

This book examines terahertz technology and its applications in atmospheric remote sensing. Terahertz waves are electromagnetic radiation between microwaves and infrared radiation in the electromagnetic spectrum. They have the capability of greater directivity, higher power density, higher resolution imaging, richer fingerprint spectrum, wider bandwidth and faster transmission rate. Such properties promise great potential for terahertz technology applications in many fields, particularly in the detection of substances and the exploration of space. The book begins with an introduction to the development of space terahertz remote sensing and the underlying theories. The next seven chapters cover the key equipment and critical technologies for terahertz remote sensing, including the terahertz radiometer and its calibration and receiver link; the terahertz reflector antenna and its tolerance analysis; remote sensing imagery; and space resolution enhancement of both oversampled and non-oversampled data. The final chapter presents the application of terahertz imaging technology in the field of security inspection. This title will serve as a valuable reference for academics, students and engineers in the fields of terahertz technology, space science and remote sensing. Professionals in atmospheric remote sensing and inspection imaging will also benefit from this book.

Weidong Hu is Professor at the Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Integrated Circuit and Electronics, Beijing Institute of Technology, China. His research interests include radar cross section, microwave remote sensing, space terahertz detection and remote sensing technology. He is National Leading Talent in Scientific and Technological Innovation and an expert in the Radio Frequency Group, Ministry of Industry and Information Technology, China. Yuming Bai is Postdoctoral Researcher with the Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Integrated Circuit and Electronics, Beijing Institute of Technology, China. His research interests include antenna design, surrogate model, and terahertz imaging. Xin Lv is Professor and Head of the Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Integrated Circuit and Electronics, Beijing Institute of Technology, China. His research interests include millimeter-wave and terahertz circuit, antenna, and communication systems.

1. Introduction 2. Theory of Space Terahertz Sensing 3. Terahertz Radiometer for Remote Sensing 4. Terahertz Reflector Antenna and its Tolerance Analysis 5. Terahertz Radiometer Calibration and Receiver Link 6. Space Terahertz Remote Sensing Images 7. Spatial Resolution Enhancement of Oversampled Data 8. Spatial Resolution Enhancement for Non-Oversampled Data 9. Remote Sensing Image Restoration Based on Deep Learning 10. Application of Terahertz Remote Sensing Technology for Body Security Inspection