| 摘要 |
The invention discloses a combined estimation method for a Wi-Fi AP (wireless fidelity access point) position and path loss model. The method is characterized by comprising the following steps: S1, sample acquiring: randomly selecting N (N is more than or equal to 3) reference points with known positions in the coverage area of a target AP, wherein the position of each reference point is {(xi, yi)}i=1<N>, and acquiring ki (i=1, 2, ... N) RSS (received signal strength) samples from the target AP on each reference point; S2, problem modeling: modeling the combined estimation problem of the AP position and path loss model into a multi-variable optimization problem according to a minimum variance estimation method and a wireless transmission path loss model; and S3, optimization problem solving. According to the scheme, while the Wi-Fi AP is positioned accurately, the path loss model is accurately estimated, and the method can also be applied to base station positioning of other wireless communication systems. |
