基于激光触发的播放器信号发生器设计
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摘要
传统设计的DMP播放器信号发生器,在信号输出过程中由于光幕靶和接收零件间存在距离,造成信号输出结果误差大,输出信号用时长的问题。因此,设计基于激光触发的播放器信号发生器,对由放大电路、柱面镜、激光二极管(光源)和光电二极管(接收器件)等器件构成的激光触发装置进行设计,基于激光触发装置中原向反射屏解决光幕靶和接收零件间的距离问题,降低信号输出的误差。采用激光触发装置产生的脉冲触发信号,通过由MATLAB获得BMP文件格式的信号图片以及由Adole Auditon软件产生的音频文件对视频信号和音频信号进行输出控制,通过音视频信息的读取、解码、误差分析以及误差校正等操作校正信号,缩短音视频信号的输出用时。实验结果说明,所设计播放器信号发发生器可减弱信号的输出误差、缩短信号输出用时。
The traditionally DMP player signal generator has a large error and long time in the signal output due to the distance between the light curtain target and the receiving components during the signal outputting. Therefore,a player signal generator based on laser-trigger is designed,which is composed of the amplifying circuit,the cylindrical mirror,the laser diode( light source),and the photo-diode( receiving device). Based on the original direction of the laser trigger device. The problem of the distance between the light curtain target and the receiving components and the signal output error are resolved through the reflective screen in the laser trigger device. The video signal and the audio signal are controlled by the pulse trigger signal generated by laser trigger device,the signal image of BMP file format obtained by MATLAB and the audio file generated by Adole Auditon software. Through the reading,decoding and error analyzing of the audio and video information,the signal is corrected and the output time is shortened. The experimental results show that the designed player signal generator can reduce the output error and time of the signal.
The traditionally DMP player signal generator has a large error and long time in the signal output due to the distance between the light curtain target and the receiving components during the signal outputting. Therefore,a player signal generator based on laser-trigger is designed,which is composed of the amplifying circuit,the cylindrical mirror,the laser diode( light source),and the photo-diode( receiving device). Based on the original direction of the laser trigger device. The problem of the distance between the light curtain target and the receiving components and the signal output error are resolved through the reflective screen in the laser trigger device. The video signal and the audio signal are controlled by the pulse trigger signal generated by laser trigger device,the signal image of BMP file format obtained by MATLAB and the audio file generated by Adole Auditon software. Through the reading,decoding and error analyzing of the audio and video information,the signal is corrected and the output time is shortened. The experimental results show that the designed player signal generator can reduce the output error and time of the signal.
引文
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[3]刘艳,刘刚.一种用于数据驱动建模的信号发生器设计[J].北京交通大学学报,2014,38(6):136-141.
[4]黎燕兵,万生鹏,胡元华,等.基于FPGA的多用途信号发生器的设计[J].现代电子技术,2016,39(13):72-76.[5]
[6]卫恒,王德功,刘扬,等.基于改进DDS算法的任意信号发生器设计[J].电子技术应用,2015,41(6):38-41.
[7]崔永俊,王晋伟,贾磊,等.基于FPGA的DDS信号发生器的设计与实现[J].电子器件,2016,39(2):339-343.
[8]刘晓东,郝彬,张俊.基于直接数字频率合成芯片的信号发生器设计[J].舰船科学技术,2015,37(12):135-138.
[9]付端瑞,马双宝,聂高宁,等.一种仿核脉冲随机信号发生器的设计与实现[J].核电子学与探测技术,2017,37(1):37-42.
[10]刘隆华,黄洪全,黄启哲,等.基于电弧外特性的故障定位信号发生器优化设计[J].电力系统自动化,2016,40(9):100-105.
[11] YUAN Q,LIANG Y,JIN L,et al. Implementation of a widely tunable microwave signal generator based on dualpolarization fiber grating laser.[J]. Applied Optics,2015,54(4):895-900.
[12]闻连臣,段晓辉,郭跃超,等.基于Mplayer的嵌入式流媒体播放器的设计与实现[J].电子技术应用,2014,40(10):9-11.
[13]王飞,徐作冬,戢运峰,等.采用扫描式漫反射成像法的激光强度分布测量装置[J].红外与激光工程,2014,43(7):2219-2222.
[14]步明繁,刘志刚,张为波,等.采用F-P光学腔的外腔半导体激光器锁相稳频方法[J].西安交通大学学报,2016,50(10):125-131.
[15]曹洁,金保召,赵宏.具有P2P功能的嵌入式流媒体播放器的设计[J].计算机工程与应用,2014,50(15):87-90.
[16] XIRu L I,QIAN X D,BAO J,et al. Design of MOPA Excimer Laser Synchronization System Signal Generator[J].Journal of Atmospheric&Environmental Optics,2014,9(6):464-470.
[17]左盼盼,赛景波.基于FPGA的FM信号发生器设计与实现[J].电子器件,2016,39(3):600-604.
[18]王旭,刘正敏,樊奔,等.基于五光谱TDICCD的模拟信号发生器设计[J].航天返回与遥感,2014,35(6):49-57.
[19]谭承君,曾国强,熊川雲,等.基于随机抽样的核脉冲信号发生器的研究[J].原子能科学技术,2014,48(s1):655-661.
[20]陈林林,孙群,高雅楠.基于单片机的波形信号发生器设计与仿真[J].中国测试,2014,40(s1):22-27.