The present invention relates to a radar device using a linear frequency modulated waveform generator. The radar device using a linear frequency modulated waveform generator comprises a signal generation unit (10) and a signal processing unit (20) so as to generate a waveform linearly changing a frequency for an accurate transmission period to accurately secure relative distance information in a real environment causing diffuse reflection such as the ground surface, a steel frame structure, or a building. A transmission wave generated from the signal processing unit is amplified to be transmitted to an object to increase reliability of a reflected wave. A Doppler signal is extracted from a signal outputted by combining the amplified transmission wave and the received reflected wave to collect the relative speed and relative distance information to quickly and accurately secure surrounding information in a real environment with frequent diffuse reflection.;COPYRIGHT KIPO 2018
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