1) alignment signal
对准信号
1.
In this thesis, the principal and feature of several phase grating alignment systems are introduced firstly; Alignment signal of phase grating alignment mark and the factors of influece of alignment signal are analysed secondly; This paper studies and compares three main factors which affect the diffractive error of alignment mark thirdly; At last, by .
本论文首先介绍了各种相位光栅对准系统的原理和特点;接着阐述对准信号以及系统中影响对准信号的因素;其次分析影响相位光栅对准标记衍射效率的主要因素槽深、占空比和反射率;最后通过建立相位光栅对准标记非对称变形的计算模型,分析标记的各级衍射效率和对准误差;并把本文所得结果与仿真软件结果进行比较,两者得到了很好的吻合。
2.
The alignment signals of two large-period sub-gratings were used for mark capture and coarse alignment.
两个较大周期子光栅的对准信号用于对准标记的捕获和粗对准,两个较小周期子光栅的对准信号用于获得粗对准基础上的精确对准。
2) alignment of noisy signals
有噪声信号对准
3) receiving and sighting telescope
接收信号及对准望远镜
4) alignment mark
对准记号
5) signal registration
信号配准
1.
In order to detect edges correctly while noise can be effectively restrained,wavelet multi-scale edge detection method with signal registration technology was proposed.
为了在准确检测边缘的同时有效地抑制噪声,提出了结合信号配准技术的小波多尺度边缘检测方法。
6) reference signal
基准信号
1.
Two critical problems,the imprecise measure of the frequency and phase of the gyro reference signal which results in the the gyro drift in the control course,are solved using this method.
针对在陀螺控制过程中陀螺基准信号频率和相位角测量不准确,从而导致陀螺控制过程中定位不准确,产生漂移的难题,研究了一种基于DSP+FPGA的陀螺控制方法。
补充资料：Alignment对准
1. 定义：利用芯片上的对准键，一般用十字键和光罩上的对准键合对为之。2. 目的：在ic的制造过程中，必须经过6~10次左右的对准、曝光来定义电路图案，对准就是要将层层图案精确地定义显像在芯片上面。3. 方法：a.人眼对准b.用光、电组合代替人眼，即机械式对准。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条