Object detection device

An object detection device configured to detect a surrounding object, comprising:

• a drive signal generation unit provided to generate a drive signal for driving a transmitter including a transmitter for externally transmitting search waves;
• and
• a control unit provided to control output of the drive signal from the drive signal generation unit to the transmitter, wherein
• the drive signal generation unit generates a first drive signal corresponding to a first search wave and a second drive signal corresponding to a second search wave having an encoding scheme that is different from the encoding scheme of the first search wave, and
• the control unit causes the drive signal generation unit to output the first drive signal and the second drive signal to the transmitter at different timings at which
• a start of transmission of the second search wave begins during transmission of the first search wave of a current cycle, wherein a cycle is defined as transmission of a first search wave and a second search wave, and
• a start of transmission of the first search wave of a next cycle begins during transmission of the second search wave of the current cycle, and
• a time interval between the start of transmission of the first search wave of the current cycle and the start of transmission of the second search wave of the current cycle differs from a time interval between the start of transmission of the second search wave of the current cycle and a start of transmission of the first search wave of the next cycle.