基于DDS技术的引信信号发生器设计  

作　　者：刘曼[1] 张亚[1] 李世中[1] 

机构地区：[1]中北大学,山西太原030051

出　　处：《无线互联科技》2014年第6期100-101,共2页Wireless Internet Technology

摘　　要：针对传统脉冲引信信号发生器多以模拟信号源产生信号,信号精度低,体积大,较难满足引信作战技术要求,结合微电子和数字集成电路在军事领域的迅猛发展,提出了基于直接数字频率合成技术的脉冲波发生器。该方法以单片机AT89C51控制产生波形频率,以AD9852芯片合成脉冲波形,经A/D转化及滤波器处理,产生平滑清晰的脉冲波形。仿真结果表明:该系统提高了脉冲波形产生的稳定度和精度,很好的满足了现代化作战的精确要求。Multi-source generates a signal to an analog signal for conventional pulse fuze signal generator,signal accuracy is low, bulky, difficult to meet the technical requirements of the fuze operations, combinedwith microelectronics and digital integrated circuits rapid development in the military field, made a directdigital frequency-based synthesis of the pulse wave generator. The method to generate the waveform frequencymicrocontroller AT89C51 control to AD9852 chip pulse waveform synthesis, the A/D conversion and filterprocessing, resulting in smooth clear pulse waveform. Simulation results show that： the system improves thestability of the pulse waveform generation and accurac, good to meet modern warfare.

关 键 词：脉冲无线电引信 发射机 DDS 单片机 

分 类 号：TN741[电子电信—电路与系统]