CAJ | 학술논문

为加强调频连续波（FMCW）雷达信号抗干扰性，实现任意变频功能，提出一种基于直接数字频率合成（DDS）的任意波形设计方法。通过ARM微控制器Arduino DUE控制串行外设接口（SPI）设置DDS寄存器值，产生不同信号波形，运用频谱分析仪进行检测，利用由130nm CMOS工艺设计集成的24 GHz雷达收发机进行实例测试，信号输出功率可依据12N 倍调，相位噪声优于－128.06dBc／Hz＠10KHz。实验结果表明，该设计可实现任意波形输出，相位噪声低，抗干扰性增强。
위가강조빈련속파（FMCW）뢰체신호항간우성，실현임의변빈공능，제출일충기우직접수자빈솔합성（DDS）적임의파형설계방법。통과ARM미공제기Arduino DUE공제천행외설접구（SPI）설치DDS기존기치，산생불동신호파형，운용빈보분석의진행검측，이용유130nm CMOS공예설계집성적24 GHz뢰체수발궤진행실례측시，신호수출공솔가의거12N 배조，상위조성우우－128.06dBc／Hz＠10KHz。실험결과표명，해설계가실현임의파형수출，상위조성저，항간우성증강。
To improve anti‐jamming ability of frequency modulated continuous wave (FMCW) signal and attain the function of arbitrary frequency ,anti‐jamming arbitrary waveform was designed using direct digital synthesis (DDS) technology .Different signal waveforms were generated by setting register parameters of DDS through serial peripheral interface (SPI) controlled by microcontroller Arduino DUE ,and the signal was measured using spectrum analyzer .Measurements were tested by adopting 24 GHz radar transceiver which was integrated by 130nm CMOS technological design .Power of the signal was adjustable accor‐ding to the multiply of 12 and the phase noise was better than -128.06dBc/Hz@ 10KHz .Results of the instantiate indicate that output signal is arbitrary ,phase noise is low and anti‐jamming is enhanced after using the measurements .