Ranging error estimation in indoor environment at 10 GHz

The aim of this paper is to model the radio channel behavior in indoor environment for a transport application, and evaluate its impact on a ranging system by means of error estimation. The simulations were then performed in a tunnel scenario at 10 GHz, and the ray tracing model was adopted to obtain the channel response. In the positioning systems based on Time Of Arrival technique, the accuracy strongly depends on the resolution. In this paper, we investigate the relationship between the error of ranging and the system bandwidth. Moreover, an optimal energy threshold was defined, since the simulated receiver is a non-coherent energy detector.