IR-UWB transceiver for the detection of survivors buried in debris

Abstract

Remote sensing for heart beat detection of human body is very useful concern for an early detection of trapped victims in rescue operations and some surveillance systems. For these, meeting low power, low complexity and exact spectrum tuning are the main challenges in IR-UWB system which makes it suitable for effectively, accurately, and reliably remote sensing of vital signals continuously. Therefore refinement of a new approach to fulfilling above challenges in IR-UWB system for detection of survivors buried in debris is the main goal of this paper. And so, this work designs a challenging but simple, low-power, non-contact IR-UWB Transceiver system which is capable to detect multiple survivors at the same time whose are buried in debris after an earthquake or other disasters or an accident, which is quite promising as compared to existing single human detection systems. The operation principle utilized here is the detection of phase change of the pulsed wave Doppler when it is reflected from the human heart. To meet the FCC requirement, Gaussian fifth derivative pulse shape is adopted here. After transmitter section, Additive White Gaussian Noise (AWGN) channel model is used for environment simulation. In this work the signal-to-noise ratio (SNR) in the baseband output has been calculated to measure the maximum passable noise power in the system. The complete system operation and performance are designed and tested in Advanced Design System (ADS) 2009. To achieve system performance, the simulated Gaussian pulse width is .48ns, amplitude of .58volt and the required maximum power and energy consumption is 8.013X10-20w and 3.686X10-11 joule. This entire requirement of this presented system provides a safe and easy access in human body.