Patent ID: 7532312

Claim:
A radar apparatus comprising: a transmit/receive section having a function of emitting a transmission wave, receiving said transmission wave reflected from a reflecting object, and outputting a reception signal having a signal level depending on an intensity of said received transmission wave; a control section controlling said transmit/receive section to transmit said transmission wave a predetermined number of times in the same direction; an integrating section successively integrating said reception signal successively outputted from said transmit/receive section to thereby successively form an integrated signal while said transmit/receive section repeatedly emits said transmission wave in the same direction; and a detector section judging whether or not said integrated signal enables detection of said reflecting object on the basis of S/N of said integrated signal; said control section controlling said transmit/receive section to stop emission of said transmission wave even when said transmit/receive section has not yet emitted said transmission wave by said predetermined number of times if said detector section judges that said integrated signal enables detection of said reflecting object; wherein said detector section is configured to calculate a peak value of a first integrated signal formed by integrating a first number of said reception signals together with a peak time at which said first integrated signal reaches said peak value, calculate a peak value of a second integrated signal formed by integrating a second number of said reception signals together with a peak time at which said second integrated signal reaches said peak value of said second integrated signal, and judge that said reflecting object can be detected by a combination of said first and second integrated signals if said peak time of said first integrated signal substantially coincides with said peak time of said second integrated signal, and a ratio of said peak value of said first integrated signal to said peak value of said second integrated signal substantially coincides with a ratio of said first number to said second number.