To local minimum areas . with the ability of modulation to mask the unreliable areas such as noise , local shadow , and the ability to deal with under - sampling areas successfully , the new algorithm can be applied to complex phase unwrapping 新算法不仅保留了调制度函数本身处理局部阴影噪声等截断位相不可靠区域的能力，而且对于采样不足的区域有着很好的处理效果，适用于复杂的位相场展开。
It is appropriate commonly that the resolution of ccd sensor imaging is 1 . 8 times of the pixel dimension , in the mean while the mtf decreases 11 % , because the mtf is bigger , the other parts are easier to be made and the image shows the characterization of the object well . 2 一般情况下取ccd探测器的目标影像分辨力是其像元尺寸的1 . 8倍较为适中，因为这时的mtf数值较大对系统的其它环节的指标压力较小，且图像较好地反映了目标图形的特征，此时其光学调制度传递函数mtf下降了11 。
Optical 3 - d profilometry has been widely used for 3 - d sensing , machine vision , intelligent robots control , industry monitoring , biomedicine , dressmaking , etc . several 3 - d object profilometry methods , including moire technique ( mt ) , phase - measuring profilometry ( pmp ) , fourier transformation profilometry ( ftp ) , modulation measurement profilometry ( mmp ) have been exhaustively studied 光学三维传感已广泛应用于机器视觉，实物仿形，工业检测，生物医学等方面，在三维面形测量中，对莫尔轮廓术，位相测量轮廓术，付里叶变换轮廓术，调制度测量轮廓术这些方法已经进行了大量深入的研究。
A comprehensive theory is presented for fm spectroscopy of doppler - broadened molecular iodine absorption lines . the relationship betwcen fm spectroscopy and modulation frequency and modulation index has been studied . the whole circuit for thc frcquency stabilized laser system has been developed 建立了多普勒加宽碘分子线性吸收fm光谱的一般理论，对fm光谱与调制频率和调制度的关系进行了研究；并研制了532nmnd : yvo _ 4 / ktp碘吸收稳频激光器的电路系统；提出了虚拟激光稳频技术的概念。
By digital weighted filtering , the analysis of fringe frequency is converted into the analysis of fringe modulation . and based on the correlation between local spatial frequency and the reliability of phase data , the correlation between modulation after digital weighted filtering and the reliability can be set up . thus modulation ordering at this moment is equal to reliability ordering , resulting in an optimized path 数字加权滤波之后的调制度函数携带了条纹频率的信息，因此数字加权滤波将对于条纹频率的分析转化为对于调制度的分析，且根据偏离条纹基频的程度与位相可靠度之间的对应关系，可建立经过数字加权滤波之后的调制度函数与位相可靠度之间的关系。
The relation of tthe ccd sensor imaging resolution and the mtf is gotten . when the mtf of space remote sensing camera is higher and the contrast of object is higher , it can be believed that the resolution of ccd sensor imaging is 1 . 6 times of the pixel dimension , in the mean while the mtf decreases 32 % 通过仿真得到了ccd探测器的目标影像的分辨力与ccd像元尺寸的关系，当航天光学遥感相机的mtf较高(仿真中镜头的mtf = 1 )且目标为高对比度时，得到ccd探测器的目标影像分辨力是其像元尺寸a的1 . 6倍，其光学调制度传递函数mtf下降32的结果。
