Simplified propagation in ionosphere For low density plasma, we have free electrons that do not interact with each other The equation of motion of one electron in the presence of a harmonic electric field is given by m X+x+00x=-eE(x, t) Where m and e are mass and charge of electron and y is a damping force Magnetic forces are neglected 04/08/02 12.540Lec1604/08/02 12.540 Lec 16 8 Simplified propagation in ionosphere • For low density plasma, we have free electrons that do not interact with each other. • The equation of motion of one electron in the presence of a harmonic electric field is given by: • Where m and e are mass and charge of electron and γ is a damping force. Magnetic forces are neglected. m Ý x Ý + γx Ý + ω0 2 [ x ] = − e E ( x,t )