tailieunhanh - Development of system for detecting hidden objects based on UWB pulse radar

This paper present a solution fordetecting hidden objects based on UWB pulse radar. In this paper, we introduce an overview of UWB systems, the theory related and used in the process to implement the project. | TAÏP CHÍ PHAÙT TRIEÅN KH&CN, TAÄP 18, SOÁ K6- 2015 Development of system for detecting hidden objects based on UWB pulse radar Thang Tran-Dai Tuan Do-Hong Ha Hoang-Manh Ho Chi Minh city University of Technology, VNU-HCM, Vietnam (Manuscript Received on July 15, 2015, Manuscript Revised August 30, 2015) ABSTRACT This paper present a solution for detecting hidden objects based on UWB pulse radar. In this paper, we introduce an overview of UWB systems, the theory related and used in the process to implement the project. We present the steps to collect and Keywords: UWB Summation). process data through object identification algorithm, improve algorithm for detecting hidden objects in some kind of environments. We evaluate the obtained results, conclude for applying orientation and development of the subject. (Ultra Wideband) Radar, Migration algorithms, HS (Hyperbolic 1. INTRODUCTION By using electromagnetic signals from Ultra Wideband (UWB) radiating in examined space and receiving electromagnetic signals at multiple points in space for analysis, wave propagation characteristics analysis system from the ultra wideband is capable of analyzing the characteristics of structure, materials and propagation of electromagnetic waves of the examined space with high spatial resolution, and wideband frequency spectrum. Therefore, applications as well as research implemented from this analysis system are very large, such as in: military, security, rescue, training, medical, construction, transportation, geology, archeology. The limitation of technical and technological design, ultra-high frequency circuits design, ultra wideband antennas, high precision circuits, low noise, realizing signal processing algorithms linking from time to space are the major challenges for the system design. UWB systems have only been manufactured, used restrictedly in a few specific areas: military, security, research, geological. Vietnam is still limited in many problems that .