Apparatus and method for detecting target

An apparatus for detecting a moving target, the apparatus comprising:

• a frequency mixer configured to calculate a first beat frequency based on a transmitted signal and a received signal of first scanning and calculate a second beat frequency based on a transmitted signal and a received signal of second scanning performed with a predetermined time interval from the first scanning;
• and
• a domain control unit configured to control at least one driver assist system module mounted to a vehicle,
• wherein the domain control unit is configured to:
• extract a first moving component by comparing an up-chirp period frequency and a down-chirp period frequency of the first beat frequency;
• extract a second moving component by comparing up-chirp period frequencies or down-chirp period frequencies of the first beat frequency and the second beat frequency;
• and determine whether there is the moving target based on the first moving component and the second moving component.

A method of detecting a moving target, the method comprising:

• calculating a first beat frequency based on a transmitted signal and a received signal of first scanning and calculating a second beat frequency based on a transmitted signal and a received signal of second scanning performed with a predetermined time interval from the first scanning;
• extracting a first moving component by comparing an up-chirp period frequency and a down-chirp period frequency of at least one of the first beat frequency or the second beat frequency;
• extracting a second moving component by comparing up-chirp period frequencies or down-chirp period frequencies of the first beat frequency and the second beat frequency;
• and
• determining whether there is the moving target based on the first moving component and the second moving component.