Ultra-wideband (UWB) positioning technology stands out from many indoor positioning technologies with its advantages of high precision. However. non-line-of-sight (NLOS) propagate leads to heavy range error and reduces position accuracy. this paper proposes a NLOS identification method based on channel impulse response (CIR). https://www.spidertattooz.com/Nora-NEFLINTW-R6MPW-6-E-Series-FLIN-Round-LED-Downlight-27K-30K-35K-40K-50K-Selectable-120V/