enhancement ratio meaning in English
增强比
Examples
- In addition , the influence mechanism of noise on the enhancement ratio is discussed . from the simulation examples , we find the law that random gaussian white noise influencing synthesized images
另外还分析了噪声对分辨率提高倍数的影响，通过仿真实验，找到了合成图像受随机高斯白噪声影响的规律。 - Then the principle and machinery of them are discussed . the fourth step , the experiments of the enhancement ratio of 1 . 5 , 2 and 2 . 5 are carried out . the method of inversion analysis is used for ft ccd and the method of simple pixel cross - interpolation is used for it ccd
对于行转移ccd ，针对其盲区较大的特点，可以设计较简单的象素交叉插值，利用两幅位移为0 . 5象素的原图，获得分辨率提高2倍的高分辨率图。 - From the results of these experiments , we know that the improvement effect is clear when the enhancement ratio is 1 . 5 . but the enhancement ratio of 2 . 5 is difficult to be reached because of the optical dispersion . it shows that the enhancement ratio is limited by the size of ccd sensor ' s cell and optical dispersion
而由于ccd像元尺寸与弥散斑相差不多，要想获得分辨率提高2 . 5倍的高分辨率图已经很困难，说明反演解析法实际上对分辨率的提高是有一个上限的，这和弥散斑与ccd感光像元间的大小比例有关。 - However , the inherent shortcoming of piezoelectric transformer hinders its further development . the major problems include : ( 1 ) the development and design of the piezoelectric transformer involve in lots of theoretic aspects including the design of material , dimension , electrode and circuit ; ( 2 ) it is hard to harvest high voltage enhancement ratio and high - power output simultaneously ; ( 3 ) the operation of the piezoelectric transformer is strongly dependent on the resonance frequency , which leads to the difficulty in the design of driving circuit
但其自身所存在的固有缺点也在很大程度上限制了压电变压器的进一步发展,突出的问题有:压电变压器的研制包括材料设计、尺寸设计、电极设计和电路设计等多个环节,所涉及的理论面很广;压电变压器的高升压比和大功率输出难以同时得到保证;压电变压器的工作过多地依赖于谐振频率,为外部电路的设计带来了困难。