以LOS时差定位算法为基础的新型NLOS定位估计,TOA，非视距。-A Novel ToA Location Algorithm Using LoS Range Estimation for NLoS Environments

测距误差分级的室内TOA定位算法_王沁，很好的资料-The indoor positioning algorithm based on TOA _ Wang Qin ranging error classification, very good information on distant and indistinct