搜索结果: 1-6 共查到“光学工程 ARM”相关记录6条 . 查询时间(0.022 秒)
传统的红外触摸屏由于分辨率低,难以准确定位多点触控,响应速度慢,在有大障碍物遮挡等复杂情况下不能正常工作,无法满足用户的所有需求。提出基于ARM(Advanced RISC Machines)Cortex-M3 内核的STM32F103处理器的红外多点触摸屏设计方案,给出系统架构及其应用。采用X轴和Y轴两端同时反向扫描的方式进行全屏扫描,从而大大提高扫描效率,响应速度也随之大幅提升。采用角度扫描算...
基于ARM和FPGA的双路远程视频监控系统设计
ARM FPGA 视频采集 ITU-R BT.656 SAA7111A
2014/3/23
针对当前市场上对双路视频监控系统的需求,设计并实现了一种基于FPGA和ARM11的双路远程视频监控系统。该系统通过两个SAA7111A芯片接收解码两路CVBS信号,并在FPGA的控制下将两路信号合成一路传输给ARM11模块。ARM11模块将接收到的视频流打包压缩后发送到IP网上,客户端通过网络连接获取两路监控画面。经过测试表明,该系统性能稳定,能够实现双路视频信号的稳定播放,符合视频产品的设计要求...
基于ARM嵌入式系统的LED点阵屏设计
ARM LED DMA 并行总线
2014/3/27
传统LED点阵屏控制系统常常采用8位或l6位的控制器,这些微处理器系统的运行速度慢、寻址能力低、功耗高,难以满足显示区域较大时刷新频率和稳定显示等方面的要求。针对上述问题,提出了一种基于ARM嵌入式的大型LED点阵屏显示系统设计方案。该系统使用ARM芯片内部的DMA控制器进行数据的传输和控制,节省了处理器取指和译指时间,从而能够在连续的读写操作中完成数据的传输,提高了数据传输的速度和效率。
160 Gbit/s OTDM System Based on 40 GHz Optical Pulses Generated Using Simultaneous Two-Arm Modulation of a Mach-Zehnder Modulator
OTDM System Optical Pulses Generated Mach-Zehnder Modulator
2015/7/17
Bit-error-rate free performance of 160 Gbit/s OTDM data based on 1.9 ps 40 GHz optical pulses generated by simultaneous two-arm modulation of a Mach-Zehnder intensity modulator has been demonstrated.
All-Optical XOR Gate Using Integrated SOA Three-Arm-MZI Wavelength Converter
All-Optical XOR Gate Integrated SOA Three-Arm-MZI Wavelength Converter
2015/7/15
We propose an all-optical XOR gate using integrated SOA three-arm-MZI wavelength converter and experimentally demonstrate an error-free operation converting from two NRZ-OOK signals to one RZ-OOK sign...
Subpicosecond 40 GHz Pulse Generation Using Simultaneous Two-Arm Modulation of a Mach-Zehnder Intensity Modulator
Subpicosecond wo-Arm Modulation Mach-Zehnder Intensity Modulator
2015/8/4
0.6 ps long-term stable, high extinction-ratio optical pulse generation at 40 GHz has been demonstrated based on simultaneous two-arm modulation of a LN Mach-Zehnder modulator.