Method for improving TOA indoor ultra-wideband positioning precision

The invention relates to the technical field of wireless communication, in particular to a method for improving TOA indoor ultra-wideband positioning precision, which comprises the following steps: areceiving end sending a detection signal, estimating channel impulse response and calculating an output value after passing through an ultra-wideband channel; a transmitting end performing time reversal processing on the signal, normalizing the signal and then sending the normalized signal to the receiving end; calculating arrival time estimation TOA; estimating TOA according to arrival time to obtain a distance equation, and obtaining a target estimation position by adopting a weighted least square method; and comparing the performance precision by adopting a root-mean-square error and a traditional maximum likelihood method. According to the method, a first path is directly determined according to the output waveform of the receiving end, the steps are simple, in addition, compared withroot-mean-square errors of