Apparatus and method for detecting target using radar

An apparatus for detecting a target using a radar, the apparatus comprising:

• N radars, including a first radar and a second radar, which are multi-channel radars each including a plurality of transmitting antennas and a plurality of receiving antennas, are installed to be spaced apart from each other, and output pieces of position information and pieces of velocity information of a target, wherein N is a natural number greater than or equal to three;
• a memory;
• and
• a processor which is configured, when executing program instructions stored in the memory, to perform:
• a position information combination operation to calculate combined position information of the target from the pieces of position information output from the radars;
• and
• a velocity vector information calculation operation to calculate velocity vector information of the target from the pieces of velocity information output by the radars,
• wherein the first radar and the second radar are installed to be spaced apart from each other such that a surface on which the first radar is installed and a surface on which the second radar is installed form an inclination angle, and
• wherein the position information combination operation rotates and transforms the second position information acquired through the second radar by the inclination angle and shifts and transforms the second position information vertically and horizontally by the distance difference between the centers of the first and second radars, and then combines the second position information with the first position information.

A method of detecting a target using a radar, which is a method in which a target is detected by an apparatus for detecting a target using a multi-channel radar including a plurality of transmitting antennas and a plurality of receiving antennas, the method comprising:

• acquiring first position information and first velocity information of a target through a first radar;
• acquiring second position information and second velocity information of the target through a second radar installed to be spaced apart from the first radar;
• calculating combined position information of the target from the first position information and the second position information;
• and
• calculating velocity vector information of the target from the first velocity information and the second velocity information,
• wherein the first radar and the second radar are installed to be spaced apart from each other such that a surface on which the first radar is installed and a surface on which the second radar is installed form an inclination angle,
• wherein calculating combined position information of the target comprises:
• rotating and transforming the second position information acquired through the second radar by the inclination angle;
• shifting and transforming the second position information vertically and horizontally by the distance difference between the centers of the first and second radars;
• and
• combining the second position information with the first position information.