Turbulent skin-friction drag accounts for approximately 50% of the total aerodynamic drag of commercial aircraft in cruise; this significant contribution motivates the development of flow control techniques aimed at reducing emissions and fuel consumption. While spanwise wall forcing is a proven active turbulence suppression strategy, the turbulent boundary layer spatial response remains difficult to characterize under laboratory conditions due to the inherent experimental constraints. In this thesis a robust near-wall velocity reconstruction method based on an arctangent model is developed and validated against synthetic data. The method is found to allow for accurate wall-shear stress estimation using data up to y^+≈ 20, overcoming typical PIV spatial resolution limits.