Ultra-Wideband Surveillance Radar

Description

Ultra-Wideband Surveillance Radar is an emerging technology for detecting and characterizing targets and cultural features for military and geosciences applications. To characterize objects near and under severe clutter, it is necessary to have fine range and cross range resolution. The resultant wide bandwidth classifies the systems as ultra-wideband, requiring special treatment in system technology and frequency allocation. This book explores several UWB surveillance radar prototypes, including Hostile Weapons Locator System (HOWLS), Multibeam Modular Surveillance Radar (MMSR), and geoscience synthetic aperture radar (GeoSAR). These prototype radars illustrated the early development of multi-mode capabilities leading to modern radar systems. Based on the results of these prototypes and recent radar technology publications a novel multi-mode, multi-channel radar is presented and analysed. The book begins with a history of airborne surveillance radar, then goes on to provide systematic and detailed coverage of the following topics and technologies: surveillance radar detection; surveillance radar modes; UWB antennas; ultra-Wideband SAR processing; interferometric radar modes; UWB ground moving target detection; UWB spectrum compliance; and UWB multimode operation. The first book to cover these new capabilities, this is an important reference for radar engineers, especially those working in geosciences and military applications. It is also relevant to academic and advanced engineering researchers developing new radar technologies and algorithms for image processing, as well as the advanced electromagnetics research community. Contents List of figures List of tables Preface List of acronyms About the author 1. History of airborne surveillance radars 1.1 Early airborne surveillance radar systems 1.2 UWB definition 1.3 Technology enablers for UAS surveillance radars 1.4 Summary of airborne surveillance requirements References 2. Surveillance radar detection 2.1 Radar waveform 2.2 Signal to noise 2.3 Clutter characteristics 2.4 Target characteristics 2.5 Propagation losses 2.6 Area coverage rate 2.7 Summary References 3. Surveillance radar modes 3.1 Surveillance radar testbeds 3.2 Battlefield surveillance radar modes 3.3 Surveillance mode conclusions References 4. UWB antennas 4.1 Uniform linear array 4.2 Airborne ESAs 4.3 UWB antenna performance compensation 4.4 Antenna technology advances 4.5 Wideband ESAs 4.6 UWB antenna summary References 5. Ultra-wideband synthetic aperture radar processing 5.1 SAR data collection 5.2 SAR waveform 5.3 SAR autofocus techniques 5.4 Motion compensation 5.5 Summary References 6. Interferometric radar modes 6.1 Cross-track InSAR 6.2 Along-track InSAR References 7. Ultra-wideband ground moving target detection 7.1 GMTI mode 7.2 Space-time adaptive processing 7.3 Along-track interferometry 7.4 Summary References 8. Ultra-wideband spectrum compliance 8.1 Motivation for UWB radar operation 8.2 UWB spectrum regulations 8.3 Calculation of intercept power 8.4 RFI avoidance 8.5 RF interference removal 8.6 Summary References 9. Ultra-wideband multimode operation 9.1 Modular survivable radar 9.2 Future multimode UWB surveillance radar 9.3 Summary References Index