A positioning algorithm suitable for UWB radar for life detector

Using the life detector to identify the human´s life characteristic and locate the target position rapidly and accurately are to realize the fundamental guarantee of the search and rescue personnel quickly and effectively at the scene of the fire, earthquake, etc. This paper mainly aimed at how to use Taylor algorithm to achieve the goal of positioning after detected the life signal, we put forward a new algorithm N-Taylor, which improved in selecting the initial value of Taylor algorithm and decreasing the data error of positioning. The final results of N-Taylor are obtained by getting the weighted average between positioning initial and Taylor locating results. Under the large error of NLOS, we carried on three-dimensional simulation experiment, which proved that the N-Taylor is superior to the 1-Taylor, Chan-Taylor and Taylor in the aspects of positioning accuracy and the number of iterations.