Ultra-wideband direct chaotic speed-measuring and ranging radar device based on heterodyne correlation method

The invention discloses an ultra-wideband direct chaotic speed-measuring and ranging radar device based on a heterodyne correlation method. The ultra-wideband direct chaotic speed-measuring and ranging radar device is characterized in that a chaotic signal generated by a ultra-wideband chaotic generator is directly taken as a radar signal and is divided into three ways of in-phase components by a wideband power splitter, wherein the first way is taken as a detection signal and is transmitted by a broadband ridged horn antenna; the second way is mixed with an intrinsic signal generated by a signal generator and is taken as a reference signal I; the third way is taken as a reference signal II, is directly inputted to a data acquisition and processing unit and is subjected to cross-correlation processing with echo signals. A target scattering signal and a clutter signal are taken as the echo signals to be received by the broadband ridged horn antenna, each of echo signals is divided into two ways of in-phase components; the first way is directly inputted into the data acquisition and processing unit to be subjected to data acquisition and related processing; the second way is subjected to heterodyne processing with the reference signal I and is inputted to an I/Q frequency mixer firstly and then the data acquisition and processing unit to be acquired; the speed information of a target is extracted from an output signal.