健壮有效的相移算法是干涉图处理中一个非常关键的技术。
A robust and effective phase shifting algorithm is important to process interferogram.
系统采用了改进的相移算法,抑制了相移器误差以及探测器带来的非线性误差,提高了测量精度。
A modified phase shifting algorithm is used in our testing system to improve the measurement accuracy, which decreases the errors from phase shifter and detector's nonlinearity.
根据实际数据处理工作的需要,以减小信号相移量为目标,提出一种新的数字滤波算法,即所谓往复数字滤波器。
A new algorithm for digital filtration, namely Forth Back digital Filter, is put forward for the need of actual data processing and reduction of the phase shift.
本文研究了一种基于自适应算法的解调差分相移键控(DPSK)信号的方法。
This paper deal with the DPSK demodulation method based on the adaptive algorithm.
该新算法也同样适用于相移干涉计量。
The new algorithm can also apply in phase-shifting interferometry.
根据最优化训练序列的设计方法分别讨论了两种最优化训练序列的导频格式:对角正交导频和相移正交导频,分析了在两种不同导频格式下的信道估计算法。
The channel estimation algorithm based on training-sequence method firstly introduces the definition of the training sequence and discusses the optimum training-sequence in MIMO-OFDM system.
研究了相移干涉轮廓仪干涉图处理的相位提取算法和相位去包裹算法。
Phase extracting algorithm and phase unwrapping algorithm of interferogram processing based on phase shift interfering profilometry are discussed.
文中用逼近法和双线性变换法,设计了用于圆度测量的高斯数字逼近滤波器,并给出了零相移的递归滤波算法,计算量小,计算效率高,易于实现。
A series of Gaussian digital approximation filters used in roundness measurement were designed on the basis of approximation method and bilinear transformation.
虚拟无线电技术正在不断的蓬勃发展,该文提出了一种基于虚拟无线电思想的二进制差分相移键控信号软件解调算法。
The technology of virtual radio is developing rapidly, a new DPSK signal software demodulation algorithm is proposed based on virtual radio.
提出一种非定值相移量的单步相移同轴数字全息算法。
This paper describes an algorithm of numerical reconstruction for coaxial digital holography by means of a single phase-shift.
级联型多电平变频器控制策略除了采用载波相移PWM技术外,阶梯波算法也是一种比较好的控制策略。
The carrier shifted-phase PWM technique can been used in cascade multilevel inverter, in addition, the step waveform strategy is good strategy, too.
采用最小方差理论和平均原理对自适应滤波算法进行分析,对信号中产生的延时和相移予以有效补偿。
By using minimum variance and average principle, the adaptive filtering algorithm is analyzed to effectively compensate the time-delay and phase shift that appear in signals.
提出了用白光相移干涉法进行三维表面轮廓测量应采用的系统结构和算法。
System structure and algorithm used in the measurement of 3D surface profile are presented while using the light bulb phase-shift interfering method.
提出了用白光相移干涉法进行三维表面轮廓测量应采用的系统结构和算法。
System structure and algorithm used in the measurement of 3d surface profile are presented while using the light bulb phase-shift interfering m...
线性相移随机误差及光强信号二次谐波不敏感六帧算法;
Six-frame algorithm insensitive to the reference phase and signal secondhumorous wave;
然后利用遗传算法分别对30和60十倍频宽带相对相移网络的零极点参数值进行了优化,得到了较好的相位频率特性结果;
The Genetic Algorithm(GA) is used to optimize the pole-zero location in all-pass networks of 30 and 60 relative phase-shift, and good phase-frequency characteristics are obtained.
然后利用遗传算法分别对30和60十倍频宽带相对相移网络的零极点参数值进行了优化,得到了较好的相位频率特性结果;
The Genetic Algorithm(GA) is used to optimize the pole-zero location in all-pass networks of 30 and 60 relative phase-shift, and good phase-frequency characteristics are obtained.
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