[Problem]To provide a signal generation apparatus that is used in a ToF camera system especially adopting the indirect system and it can suppress occurrence of a cyclic error with a simple configuration.[Solving means]There is provided a signal generation apparatus including a first pulse generator configured to generate a pulse to be supplied to a light source that irradiates light upon a distance measurement target, a second pulse generator configured to generate a pulse to be supplied to a pixel that receives the light reflected by the distance measurement target, and a signal selection section configured to select and output a duty of a signal to be outputted from the first pulse generator from between a first duty and a second duty different from the first duty.
