Patent ID: 7679726

Claim:
A radar system for use in a vehicle, said system comprising: a transmission means for transmitting a transmission wave at predetermined time intervals; a redirection means having a plurality of redirection planes for redirecting at least two successive transmissions of the transmission wave transmitted by the transmission means in a same direction without any intervening redirection in another direction; and a driving means for causing the redirection means to be rotated or translated at a constant speed to switch the plurality of redirection planes that are used for redirecting the transmission wave; wherein the transmission wave is redirected in the same direction through one of the plurality of redirection planes for a plurality of times when the redirection means is rotated or translated at a constant speed; a reception means for outputting a reception signal based on reception of a reflected wave that corresponds to a transmission wave; and an integration means for outputting an integrated signal upon integrating a plurality of said reception signals that correspond to said transmission waves at successive time intervals redirected in the same direction thereby enhancing the signal-to-noise ratio of the integrated signal.