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基于LabWindows/CVI的ASK+DPSK数字信号的解调实现
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作者 陈熙源 谭全福 孟玲丽 《中国惯性技术学报》 EI CSCD 北大核心 2009年第3期288-292,共5页
为实现软件无线电中频数字解调功能,采用矢量信号发生器产生ASK信号,使用PXI-9820以60MHz对ASK信号进行数据采样,基于LabWindows/CVI软件平台设计人机对话面板,自主编码产生ASK+DPSK数字信号。设计解调程序模块对ASK信号予以载波恢复,... 为实现软件无线电中频数字解调功能,采用矢量信号发生器产生ASK信号,使用PXI-9820以60MHz对ASK信号进行数据采样,基于LabWindows/CVI软件平台设计人机对话面板,自主编码产生ASK+DPSK数字信号。设计解调程序模块对ASK信号予以载波恢复,并完成对ASK+DPSK数字信号的解调。仿真结果与预想设计编码相符合,该平台的数字化方案实现载波恢复可以有效地消除多普勒频移对解调结果的影响。 展开更多
关键词 软件无线电 ask+dpsk CVI 解调
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Performance Comparison among ASK, FSK and DPSK in Visible Light Communication
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作者 Chengji Yao Zengqiao Guo +1 位作者 Gongtao Long Hongming Zhang 《Optics and Photonics Journal》 2016年第8期150-154,共5页
We consider the detection of Amplitude-Shift Keying (ASK), Frequency-Shift Keying (FSK) and Differential Phase-Shift Keying (DPSK) in Visible Light Communication (VLC). And their performance is compared according to d... We consider the detection of Amplitude-Shift Keying (ASK), Frequency-Shift Keying (FSK) and Differential Phase-Shift Keying (DPSK) in Visible Light Communication (VLC). And their performance is compared according to data rate, transmission distance and incident angle respectively. 展开更多
关键词 VLC ask FSK dpsk
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Optimization of Key Parameters in 622-Mb/s Amplitude Shift Keying Labeled 40-Gb/s Return to Zero Differential Phase Shift Keying Optical Switching Network 被引量:1
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作者 ZHAO Jun-yan XIN Xiang-jun YU Chong-xiu XU Da-xiong 《Semiconductor Photonics and Technology》 CAS 2008年第1期17-21,共5页
Optimized are the label extinction ratio and dispersion compensation of an optical label switching transmission system,which employs 40-Gb/s return to zero differential phase shift keying(RZ-DPSK)payload labeled with ... Optimized are the label extinction ratio and dispersion compensation of an optical label switching transmission system,which employs 40-Gb/s return to zero differential phase shift keying(RZ-DPSK)payload labeled with 622-Mb/s amplitude shift keying(ASK)control data.In our scheme,the receiver sensitivities of payload and label achieves-27.8dBm and-33.5dBm,respectively.After transmitted over 40km,60km and 80km single mode fiber(SMF)(with dispersion compensation)respectively,the payload can be recovered with no power penalty,while the label can be recovered with less than 2dB penalty. 展开更多
关键词 optical label switching RZ-dpsk/ask extinction ratio(ER) dispersion compensation orthogonal modulation
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