Research For UWB-Radar'echo Signal And Recognition Methods About Life's Microwaving Characteristic

In China, the earthquake is very active, the earthquake disaster is serious. How to greatly decrease these disaster lose, rescue the pressed and the buries, reduce the personnel casualty effectively, is the most important task, also is the key link of which can mostly manifest the disaster reduction actual effect and the society reveals the indication. The fact about rescue the lives in big quakes of the domestic and the foreign countries proved that, more promptly to rescue the buries, more lives may be saved. Therefore, for find the stranded people within the shortest time in the urgent rescue, it has extremely vital significance to carry out the advanced life rescue and location research.By theory says, the electromagnetic detection method should be a complement of the manual search, the optical device observation, the infrared/thermal imagery, the sound wave, the vibration sensor, the search dog and so on effective method, The ultra-wide band radar(UWB-Radar)sounding technology is an effective survey method for probe some specific goal which develops just in the nearly several dozens years. In recent years, along with the ultra-wide band technology development, the ultra-wide band radar obtained the extensive research and the application. UWB-radar technology of detect life is to detect the launch of life through the walls by using radar, such as electromagnetic shielding medium, detection of the outside walls or other non-metallic cover of lives following the radar information of detecting life.In fact, life's radar detectiong is through the detection of human life caused by a variety of fretting, such as mobile, physical activities, respiration and heart rate signals, and so on,then,to identified any obstacles life. Therefore, develops the research of the ultra-wide band radar has extremely vital significance both for the disaster search and rescue and the economical development. This article's prime task may induce into the following several aspects:The first part: Mainly introduced the exploration of health- meters which based on the electromagnetic wave principle and other microwave human being-detection systems , elaborated their work principle, compared with their good and bad point's.The second part: Mainly has designed the testing plan about human body probe with the ultra-wide band radar, and has carried on some pretreatment and processing to the empirical datum. It has used the energy integral principle and the design of glide window box number to withdraw the human's life characteristic signal, and to take denoising and spectrum analysis from signal by using wavelet transform and time-frequency analysis method, in order to extract the representative features of the spectrum of human life. And it has carried on the effective localization.The third part: Mainly has established the breath signal model with the MUSIC algorithm and the aid of the breath palpitation overtone formula, also it has carried on the recognition of the multi-objective signal, achieved the multi-objective recognition's simulation goal.