A driver assistance system includes a global-positioning system generating an output indicative of the current geographical location of the vehicle equipped with the driver assistance system, a forward facing camera, and a video display screen. The nacelle is pivotably coupled to a mast extending down from to a frame and below a water surface. The parameter may be included in a feedforward path. In use, the peg is positioned inside the firing chamber of a firearm through the ejection port. Revision of the first model or first empirical equation based is then performed. The switch driving circuit generates the high-side switch driving signal and the low-side switch driving signal according to a difference between the first voltage and a reference voltage.