Radar apparatus and computer program

A computer program to cause a computer to execute processing, the processing comprising:

• acquiring an electromagnetic wave received by a reception antenna at specific intervals in time;
• computing power of the received electromagnetic wave as a function of an acquisition time number;
• extracting plural representative points from the function;
• and
• determining whether the object is an overhead object positioned higher than an optical axis of the reception antenna based on the representative points.

A radar apparatus comprising:

• a transmission antenna configured to transmit an electromagnetic wave;
• a reception antenna configured to receive an electromagnetic wave when the transmitted electromagnetic wave has been reflected by an object;
• a separation distance detector configured to detect separation distance to the object based on the received electromagnetic wave;
• a reception power calculator configured to compute power of the received electromagnetic wave as a function of the detected separation distance;
• an area calculator configured to compute area of a region in a specific separation distance segment defined by a curve representing the function as one boundary;
• and
• a detection section configured to determine whether the object is a low height object based on the computed area.

A radar apparatus comprising:

• a transmission antenna configured to transmit an electromagnetic wave;
• a reception antenna configured to receive an electromagnetic wave when the transmitted electromagnetic wave has been reflected by an object;
• a reception power calculator configured to compute power of the received electromagnetic wave as a function of time;
• an area calculator configured to compute area of a region in a specific time segment defined by a curve representing the function as one boundary;
• and
• a detection section configured to determine whether the object is a low height object based on the computed area.

A non-transitory computer readable medium storing instructions executed by a processor, the instructions comprising:

• acquiring an electromagnetic wave received by a reception antenna at specific intervals in time;
• computing power of the received electromagnetic wave as a function of an acquisition time number;
• extracting plural representative points from the function;
• and
• determining whether the object is an overhead object positioned higher than an optical axis of the reception antenna based on the representative points.