APPARATUS FOR PROCESSING RADAR SIGNAL USING NONLINEAR FREQUENCY MODULATION WAVEFORM AND METHOD THEREOF

摘要

The present invention relates to radar signal processing apparatus and method using a non-linear frequency modulated waveform, the transmission signal In the radiation radar signal processing apparatus for receiving a signal is reflected back by the surrounding objects, the transmission signal is a non-linear frequency modulation (Nonlinear Frequency Modulation, NLFM) signal waveform generated by using the window function (Window Function), a non-linear Frequency Modulation (NLFM) according to the set timing counter group to generate a signal waveform specific control signal, the address value and the delta frequency (Delta Frequency) module, a frequency modulated and for outputting a value, depending on the particular control signal output from the frequency modulation module By including an address value and provide the received delta direct digital synthesis frequency value (Direct Digital Synthesis) method by using a non-linear frequency modulation (NLFM) frequency synthesis module for transmitting a signal wave, jeoyeop (sidelobe) suppression filters applied to the conventional receiver and there is effect that can increase the gain as well as received and effectively prevents the loss of energy of the received signal by.