| 主权项 |
1. A radar apparatus comprising:
a radar transmitter that converts a transmitting signal into a high frequency radar transmitting signal and transmits the radar transmitting signal from a transmission antenna; and a radar receiver that receives, by a plurality of receiver antennas, a reflected wave signal corresponding to the radar transmitting signal having been reflected on a target, and estimates an arrival direction of the reflected wave signal by using a plurality of antenna system processors for generating signals including correlation vectors between the reflected wave signal and the transmitting signal, wherein the radar receiver includes:
a correlation vector extractor that extracts a maximum value of the signals including the correlation vectors, and the signals including the correlation vectors in number of (NE×NT−1) corresponding to Doppler frequency components in number of NE (wherein NE represents an integer of 1 or more) and corresponding to time components in number of NT (wherein NT represents an integer of 1 or more) respectively adjacent to a Doppler frequency and a time giving the maximum value; anda correlation matrix generator that generates, on the basis of the extracted signals including the correlation vectors in number of (NE×NT), a correlation matrix corresponding to correlation of the reflected wave signal received by the plurality of receiver antennas. |
