A radar apparatus is provided with a data calculation unit, a first threshold calculation unit, a second threshold calculation unit, a detection threshold calculation unit and a peak detecting unit. The data calculation unit performs a frequency analysis of the reception signal to produce complex data. The first threshold calculating unit adds a predetermined addition value to a power value of the average data where the complex data is averaged to calculate a first threshold. The second threshold calculation unit calculates a second threshold based on a noise power. The detection threshold calculation unit calculates, for each frequency bin, a larger value of the first threshold and the second threshold to be the detection threshold.