基于FPGA的高精度数字式移相正弦波信号发生器设计-阳光环保设备网 Key words:Digital Phase shifting;FPGA;VHDL; DDS [gap=234]关键词: 数字移相 ; FPGA; VHDL; 直接数字频率合成
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A method based on digital fringe projection and digital phase shifting technique is proposed in this thesis for 3d shape measurement.
本文提出一种基于数字条纹投影与数字相移技术的三维形面测量系统。
In this background, with the application of CPLD in V-M System, a digital SCR trigger circuit with phase shifting is developed which is absolutely different from the former ones.
在此背景下,本次设计将CPLD引入到V-M系统中,开发出与以往脉冲产生方式相区别的数字式移相触发电路。
In dynamic measurement field, when using digital speckle pattern interferometry, we always deal phase with time-average method and spatial carrier phase-shifting method.
在动态测试领域中,数字散斑干涉技术常用到的相位处理方法有时间平均法和空间载波相移法。
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