"Technology now allows the use of microwave and millimeter wave sensors for the detection of concealed objects, typically weapons and explosive devices, on the human body. This book discusses these developments and includes examples of actual devices built and tested by the authors. Topics include active millimeter wave sensor using the direct detection approach and the heterodyne approach, active microwave sensor for CNR-based object detection, passive millimeter wave sensors, and the role of shielding effects in operating non-imaging MM-wave sensors"--
During the last decade, Kapilevich, Harmer, and Bowring have been involved in designing and testing various microwave and millimeter-wave devices and systems to improve the efficiency of detecting weapons and explosives carried by human bodies. They share their findings regarding non-imaging sensors applied to the remote detection of both metallic and dielectric objects concealed on a human body in outdoor and indoor environments. Their topics include active millimeter-wave sensors using a direct detection approach, frequency-modulated continuous wave sensors for detecting hidden objects, and the role of shielding effects in operating non-imaging sensors. Annotation ©2015 Ringgold, Inc., Portland, OR (protoview.com)
In response to the ever-increasing global threat of terrorist attacks, the personal screening industry has been growing at a rapid rate. Many methods have been developed for detecting concealed weapons and explosives on the human body. In this important new book, the authors discuss their experiences over the last decade designing and testing microwave and millimetre wave detection and screening systems. It includes examples of actual devices that they have built and tested, along with test results that were obtained in realistic scenarios.
The book focuses on the development of non-imaging detection systems, which are similar to radar. These systems do not form a conventional image of the scene and the person(s) being screened. Instead, the sensors detect and analyze the effect that the body, and any concealed objects, has on a transmitted waveform. These systems allow remote detection of both metallic and dielectric devices concealed on the human body in both indoor and outdoor environments.
The book discusses a number of sensor types, including active millimetre wave sensors using the direct detection and the heterodyne approach, active microwave sensors for CNR-based object detection, passive millimetre wave sensors, and the role of shielding effects in operating non-imaging MM-wave sensors.
The goal of this book is to systemize the test results obtained by the authors, helping specialists to develop improved screening systems in the future. Another goal is to show how the use of non-imaging systems can reduce the cost of the screening process.