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- Interferometer and Doppler 干扰计与多普勒
- Twyman-Green infrared phase-shifting interferometer and application[J]. 引用该论文 何勇;陈磊;王青;朱日宏.
- The principle of Laser Interferometer and its formula for length measuring are discussed in this paper. 分析了激光干涉系统的原理,给出了长度测量的计算公式。
- This paper discusses the role of Compensator in Michelson interferometer and the method to measure its angle change. 讨论了迈克尔逊干涉仪补偿板的作用和补偿板角度改变量的测量方法。
- It is an effective way in integrated navigation by using Strapdown Inertial Navigation System(SINS),GPS and Doppler Velocity Log(DVL). 利用捷联惯导(SINS)、GPS定位系统和多普勒计程仪(DVL)进行组合导航是水下运载器导航定位的有效方式。
- It is very valuable for accurate length measurement with Fizeau interferometer and Fabry-Perot interferometer. 对于指导精密测长的实验和研究工作具有十分重要的意义,也是对相移算法理论的重要补充和完善。
- A new method to estimate Doppler centroid and Doppler rate applicable to real flight condition is proposed. 该方法设置飞机速率和脉冲重复频率比为常数,保证方位向接收信号均匀空间取样,使用实时最小二乘拟合算法。
- The ways of estimating the frequency offset and Doppler spread width in WCDMA system are studied in this paper. 本文主要研究了WCDMA(宽带码分多址)系统中频偏和最大多普勒频偏的估计方法。
- Spectrophotometers for recording spectra consist of a suitable light source, monochromator or interferometer and detector. 用于记录光谱的分光光度计是由适当的光源、单色器或干涉仪和检测器组成。
- The wavelet based wideband cross ambiguity function can be used for joint time d elay and Doppler stretch estimation. 基于小波的宽带互模糊函数可用来对宽带信号的时间延迟和多普勒伸缩进行联合估计,但它不能抑制相关高斯噪声。
- The X ray diffractometer, optical interferometer and scanning electronic microscope were used to observe the micro profiles of surfaces turned. 通过X射线衍射仪、白光干涉仪、扫描电镜对试件表面进行显微形貌观测,证实了振动车削时刀具对加工表面的强烈熨压效应。
- Relevant processing of CPCPT consists of three parts: Doppler preprocessing, pulse compression, and Doppler post-processing. 而相应的信号处理由三部分组成:多普勒预处理、脉冲压缩和多普勒后处理。
- As an example, a research-type experiment, the measurement of gas' refractive index by using Michelson interferometer and CCD system, is designed and putted in practice. 文章以迈克耳逊干涉仪实验为例,通过在实验装置中增设可调压强的气室和CCD图像采集系统,实现对干涉图样的实时观察和气体折射率的较精确测量。
- Objective To evaluate the diagnostic value of CT, MRI and Doppler ultrasound in dilatation of superior ophthalmic vein (SOV) and its etiologies. 目的 探讨超声、CT及MRI检查在眼上静脉扩张及其病因诊断中的意义。
- Based on the optical heterodyne interferometer and transmission ellipsometry, a new fast measurement technique of nanometer film was presented computational. 结合激光外差干涉法和透射式椭偏测量原理,研究了一种快速、高精度测量纳米厚度薄膜光学参数的方法。
- Objective To evaluate the diagnostic value of CT,MRI and Doppler ultrasound in dilatation of superior ophthalmic vein(SOV)and its etiologies. 目的 探讨超声波 (包括彩色超声Doppler)、CT、MRI在显示眼上静脉 (SOV)扩张及病因诊断中的作用 ,分析导致SOV扩张的机理及通过增粗的SOV逆向栓塞治疗颈动脉海绵窦瘘 (CCF)。
- I hit him fair and square on the jaw. 我不偏不倚打中他的下巴。
- It is a fact of life and you must face it. 这是严酷的现实,你必须面对它。
- Methods 28 cases of tubal interstital pregnarcy were examined and analysed by trans abdominal B mode ultraound and Doppler Power Imaging (DPI) . 方法 经腹壁应用B超和多普勒功率图(Doppler Power Imag-ing,DPI)对28例输卵管间质部妊娠患者声像图表现进行分析。
- She and I can't live under the same roof. 她和我不能住在一起。