Hi iam supraja i want free ppt for life detecting system using microwaves.Here iam not getting that ppt, will please upload it.It is urgently required..
A new sensitive microwave life detection has been constructed that can be used to locate human subjects buried in earthquake debris or hidden behind several barriers. This system that works at 1150 MHz or 450 MHz can detect breathing signals and heart beats from humans through an earthquake debris or a building barrier of about 10 feet in thickness. The basic physical principle for the operation of a microwave life detection system is quite simple. When a microwave of appropriate frequency (L or S band) is directed to a heap of earthquake debris covering a human subject or illuminating through a barrier obstructing a human subject, the microwave beam may penetrate into The debris or the barrier to reach the human subject. When the human subject is illuminated by a microwave beam, the reflected wave of the human subject will be modulated by the subject's body movements, which include breathing and heartbeat. If the disorder consisting of the reflected wave from the stationary background can be completely removed and the reflected wave of the human subject's body is properly modulated, the breathing and heartbeat signals from the subject can be extracted. Therefore, a human subject buried under earthquake debris or hidden behind barriers can be located. This system has been extensively tested in a simulated earthquake debris in the laboratory and also in a field test using realistic earthquake debris conducted by a Federal Emergency Management Agency (FEMA) Task Force.
Natural and man-made disasters, such as earthquakes, landslides, avalanches, have become common in recent decades because these buildings tend to collapse in people. After most of these incidents, the common problem is that more lives could have been saved if the survivors had been found and rescued earlier. This incident makes people to death to safeguard our technology is useful l. Therefore, it is necessary to develop a comprehensive disaster management solution to address this problem. This proposed system is mounted on a mobile flight unit such as a Quadrotor. An area survey can be used to identify people who are buried under debris.