A corrected method for parameters in the signal propagation model

The received signal strength (RSS) is an important indicator of the strength of a received signal. The signal propagation model is crucial for calculating the RSS. However, the RSS can vary and be unstable even in the same location, so it requires a more flexible calculation method to adapt to complex scenarios. In this article, we propose an automatic calculation method that can adjust the parameters according to the measured RSS. First, some outliers are removed from the measurements. Second, to ensure the accurate calculation of indoor signals, the propagation parameters are adjusted based on the actual measurement data from different indoor scenarios. Finally, segmental correction of the RSS is used to account for faster signal attenuation at closer ranges and slower attenuation at farther ranges. The performance of the corrected algorithm has been verified under various conditions. Experiments demonstrate that the proposed method can enhance the accuracy of signal calculations.