Patent ID: 8325083

Claim:
A radar apparatus for detecting a target by utilizing a long-range detection mode and a short-range detection mode, the radar apparatus comprising: a signal processor configured to generate a first pulse utilized for the long-range detection mode at a first time point and a first control signal simultaneously by generation of the first pulse to change the short-range detection mode to the long-range detection mode, and to generate a second pulse utilized for the short-range detection mode at a second time point and a second control signal simultaneously by generation of the second pulse to change the long-range detection mode to the short-range detection mode, the width of the first pulse greater than the width of the second pulse; a transmitting unit which converts the first and second pulses from the signal processor into first and second transmission pulses; an antenna which radiates the first and second transmission pulses from the transmitting unit and receives reflection pulses reflected from the target to generate a reception signal; a first receiving unit including first and second receiving circuits, the first receiving circuit configured to generate a first processed signal based on the reception signal and output the generated first processed signal during a period starting when the first receiving unit receives the first control signal output from the signal processor and ending when the first receiving unit receives the second control signal output from the signal processor, the second receiving circuit configured to generate a second processed signal based on the reception signal and output the generated second processed signal during a period starting when the first receiving unit receives the second control signal and ending when the first receiving unit receives the first control signal, a power level of the first processed signal being higher than a power level of the second processed signal; and a second receiving unit which performs receiving processing on the one of the first and second processed signals from the first receiving unit.