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- Profilometry for phase measurement with non-integral twin-frequency grating[J]. 引用該論文 陳永權;曹益平;常山.
- To extend the applied range of MAP-NSF algorithm, the problem ofrobust estimation of DOAs of spatial signals under gain／phase error and unstructured error were considered. 為了拓寬最大后驗概率-噪聲子空間擬合(MAP-NSF)算法在信號到達角估計上的適用范圍，針對通道特性失配和非結構誤差兩種陣列擾動(dòng)模型，對MAP-NSF算法的信號到達角估計問(wèn)題進(jìn)行了討論。
- Phase-shift error is the main source of phase measurement error in phase-measuring profilometry(PMP). 移相誤差是移相法相位測量輪廓術(shù)的主要誤差來(lái)源。
- WAMS includes the PMU (Phase Measurement Unit), communication system and the control system of the EMS and SCADA. WAMS主要由位于廠(chǎng)站端的PMU、通信系統和位于調度中心的控制系統組成。
- The PID control systems were tuned using well?known PID tuning methods, such as Ziegler?Nichols, Chien?Hrones?Reswick, Cohen?Coon, IMC, Opt, Pole? Assignment, and Gain Phase Margin, for several classical thermal models. 針對若干典型熱工對象,對一些典型的PID整定方法:Ziegler-Nichols方法、Chien-Hrones-Reswick方法、Cohen-Coon方法、IMC方法、IST2E最優(yōu)方法、極點(diǎn)配置方法、幅值相位裕量方法所設計的PID控制系統的過(guò)渡過(guò)程性能進(jìn)行了比較。
- The accuracy can be enhanced with optical heterodyne technique and the phase measurement of Doppler signals. 對多普勒信號進(jìn)行光學(xué)外差處理并對多普勒信號進(jìn)行測相，可以提高測量的精度。
- A symmetrical common-path heterodyne interferometry is proposed,which utilizes a traverse Zeeman laser and a high-speed phase measurement technology. 提出了一種對稱(chēng)共路雙頻外差干涉測量硬盤(pán)磁頭飛行高度的方法,用于在線(xiàn)檢測磁頭飛行高度瞬態(tài)調制變化。
- Abstract Two methods of microwave phase measurement and its applications in theresearch and operating of microwave accelerating system for BEPC Linac aredescribed. 摘要 文章敘述了兩種微波相位測量方法及其在BEPC電子直線(xiàn)加速器微波加速系統研制和運行中的應用。
- logarithmic gain phase characteristic 對數增益相位特性
- In phase measurement, the instrument used zero-crossing shaping circuit, zero-drift compensation circuit and software burr rejection technique. It has solved problems of dead-zone and filter circuits errors in phase measurement. 相位測量采用零交叉整形電路,零點(diǎn)補償電路以及軟件的毛刺剔除技術(shù),解決了測相中的“死角”、“死區”、以及濾波電路所帶來(lái)的誤差。
- In this paper the reflection effects which appeared in RF system of BPL on the phase measurement and phase control are described. Some mathematical expressions about the effects are obtained. A coneret method reducing the reflection effects is presented. 本文描述了BPL的RF系統中出現的反射對相位測量和相位控制的影響,得出了關(guān)于這些影響的某些數學(xué)表達式,提出了減少反射影響的一種具體方法。
- Phase Measuring Profilometry (PMP) by a composite grating is a non-contract and real-time optical three-dimensional (3D) measurement method. 摘要基于復合光柵的相位測量輪廓術(shù)在物體三維信息重建中是一種非接觸、實(shí)時(shí)的測量方法。
- Abstract: This paper discusses the theory of the phase-stepping interferometry.The algorithms of phase measurement utilizing this theory,and the application of the decimal coincidence. 文摘:討論了相位偏移干涉技術(shù)的原理、常用的算法和小數重合法的應用。
- Abstract: Both structured light and phase measurement which base on optical triangulation are methods for measuring displacement. 中文摘要: 結構光法和相位移法都是基于光學(xué)三角原理的位移測量方法。
- You can gain by watching how she works. 看她怎樣工作就可獲益。
- Oil share show modest gain over the week's trading. 石油股票價(jià)在上星期的交易中略有上升。
- The masses gain experience through struggle. 群眾通過(guò)斗爭可以取得經(jīng)驗。
- It is significant for the application of composite phase measuring profilometry. 這對于復合相位測量輪廓術(shù)的進(jìn)一步應用具有實(shí)際指導意義。
- It is not for the love of gain that he does so. 他這樣做并非為了得什么好處。
- A New Method of Three-Dimensional Coordinates Calibration in Phase Measuring Profilometry[J]. 引用該論文 宋萬(wàn)忠;蘇顯渝;曹益平;向立群.
