CAJ | 학술논문

采用遗传算法（GA）进行了一种新颖的超宽带（UWB）脉冲波形的设计。从多带Chirp信号出发,将波形设计问题转化成有约束条件的逼近问题求解,然后通过遗传算法解决逼近问题。得到的波形不仅满足联邦通讯委员会（FCC）的频谱模板,而且具有88%的频谱利用率。仿真结果验证了采用遗传算法的波形设计具有低时间复杂度;提出的UWB脉冲波形具有较高的频谱利用率,优于其他的UWB脉冲例如B样条脉冲。
채용유전산법（GA）진행료일충신영적초관대（UWB）맥충파형적설계。종다대Chirp신호출발,장파형설계문제전화성유약속조건적핍근문제구해,연후통과유전산법해결핍근문제。득도적파형불부만족련방통신위원회（FCC）적빈보모판,이차구유88%적빈보이용솔。방진결과험증료채용유전산법적파형설계구유저시간복잡도;제출적UWB맥충파형구유교고적빈보이용솔,우우기타적UWB맥충례여B양조맥충。
A novel ultra-wideband （UWB） pulse waveform design using genetic algorithm is proposed. At first, we use the muhiband chirp signals and convert the waveform design problem into a constrained approximation problem. Then, we use GA to solve the approximation problem. The waveform obtained in this way not only meets the FCC spectral mask, but also has a spectrum utilization rate of 88%. Simulation results verify the waveform design using GA has low time complexity; and the proposed pulse waveform has high spectral efficiency, superior to other UWB pulse such as B-spline impulse.