This book reports the latest research results in the study of waveform design methods for the synthetic aperture radar (SAR) and the corresponding signal processing techniques. Novel research ideas and experimental verification for the SAR waveform design have been collected in this book, including the SAR system model, advanced SAR waveform design method, the corresponding signal processing method, the application representations in the SAR system, etc. The book is intended for university researchers, R&D engineers, and graduate students in remote sensing who wish to learn the core principles, methods, algorithms, and applications of SAR waveform design.