Abstract
When facing a major disaster, firefighters and other rescue workers may also encounter certain dangers, which means certain protective measures are needed to ensure the safety of disaster relief personnel. Due to the complexity of the rescue environment, such as being blocked by obstacles or due to the influence of magnetic field, satellite positioning may not be used, and the position of the personnel in need of rescue can not be accurately located. On account of the above issues, we used search and rescue equipment and handheld terminals, and the dual antenna multidimensional positioning algorithm were also used to determine the position of firefighters in real time. Matlab was used for simulation, and error sources and error sizes were estimated,which ensured the safety of firefighters and provided timely help and rescue in case of firefighters' distress. After simulation, it can be concluded that in the case of large signal-to-noise ratio, the positioning accuracy is high and the positioning effect is pretty well.
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