Ultra　Wide　Band　(UWB)　is　widely　used　because　of　its　high　precision　and　anti-interference　in　positioning.　In　the　location　system,　the　location　models　based　on　Toa,　TDOA　and　RSSI　all　need　to　deploy　three　or　more　base　stations　in　order　to　locate　the　target　accurately.　In　this　paper,　a　location　scheme　combining　TOA　and　AOA　is　proposed.　The　target　can　be　located　accurately　by　using　a　single　base　station,　3LS-PSO　is　introduced　to　optimize　the　dynamic　positioning　effect.　©　2024　ACM.