空间采样 meaning in Chinese
spatial sampling
Examples
- A demodulation method of gear phase modulation vibration signal based on spatial sampling
基于空间采样法的齿轮调相振动信号解调 - Robustness is the study focus of adaptive beamforming techniques because of the inevitable array imperfections in practice . a robust adaptive beamformer based on the structure of the generalized sidelobe canceller ( gsc ) is proposed in this thesis
由于阵列天线的空间采样误差不可避免，自适应波束形成的稳健性是当前波束形成研究的热点，论文提出了一种基于广义旁瓣相消器结构的稳健的自适应波束形成器。 - The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model , the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters , defect surface angle and shape , pipe material , field intensity , vehicle velocity , background magnetization , operating pressure and remanent magnetization and so on influence the mfl signal characteristics
采用霍尔元件作为缺陷漏磁检测传感器，获得管道轴截面漏磁场切向分量的漏磁信号；研究了缺陷外形尺寸、缺陷倾角和形状、管道材质和磁化强度、检测仪移动速度、管道背底磁场、管内压力和剩磁对漏磁信号的影响。提出了各通道增益放大、各路漏磁信号偏离调整、波形微分、数字滤波和平滑等漏磁信号预处理方法；分析了等空间采样的漏磁信号转换为等时间采样信号的必要性，研究了漏磁信号的小波去噪方法。 - Through describing the space sampling process of ccd , the composing factors of modulate transfer function ( mtf ) of ccd integral sampling process are analyzed . meanwhile , an effective method to analyze the mtf of discrete sampling image system is put forward and is used to analyze and compare mtfs of sub - pixel image system and singlechip ccd system . as a result , definitions of ccd optical transfer function ( otf ) and optical mtf are presented and effective methods to measure ccd mtf are brought forward
本文通过对ccd器件空间采样过程的描述，详细分析了ccd积分采样过程调制传递函数的构成要素，提出了分析离散采样成像系统调制传递函数的有效方法，并用该方法分析比较了亚像元成像系统与单片ccd系统的mtf ，给出了ccd器件光学传递函数（ otf ）和光学调制传递函数（ mtf ）的定义，提出了检测ccd调制传递函数有效方法，采用几种不同测量方法测定了tdiccd的调制传递函数，并进行了比较分析。