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长春光学精密机械与物... [2]
高能物理研究所 [1]
自动化研究所 [1]
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OAI收割 [4]
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会议论文 [2]
学位论文 [1]
期刊论文 [1]
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2018 [1]
2008 [1]
2006 [2]
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Thermal behavior simulation of bulk acoustic wave resonator
期刊论文
OAI收割
PROCEEDINGS OF SPIE, 2018, 卷号: 10799, 页码: UNSP 107990J
作者:
Wen, Shu-wen
;
Zhang, Da-peng
;
Gao, Yang
;
Han, Chao
;
Wen SW(文数文)
  |  
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2019/10/10
BAWR
self-heating effect
signal feeding edge
power handling capacity
active area shape
新型高阶主动轮廓模型、形状先验和多尺度分析:超高分辨率卫星图像中的道路网络提取应用研究
学位论文
OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2008
作者:
彭婷
收藏
  |  
浏览/下载:84/0
  |  
提交时间:2015/09/02
高阶主动轮廓
相位场
先验形状
多分辨率
参数
道路网络提取
地图更新
高分辨率
密集城市区域
遥感图像
higher-order active contour (HOAC)
phase field
prior shape
multiresolution
parameter
road network extraction
map updating
very high resolution (VHR)
dense urban area
remote sensing images
Geometrical modulation transfer function of different active pixel of CMOS APS (EI CONFERENCE)
会议论文
OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China
作者:
Li J.
;
Liu J.
;
Liu J.
;
Liu J.
;
Li J.
收藏
  |  
浏览/下载:25/0
  |  
提交时间:2013/03/25
The geometrical Modulation Transfer Function (MTF) of CMOS APS (active pixel sensor) is analyzed in this paper. Advanced APS have been designed and fabricated where different pixel shapes such as square
rectangle and L shape
were placed
because the amplifier circuit and other function circuits inter pixel of APS take up some pixel area. MTF is an important figure of merit in focal plane array imaging sensors. Research on analyzing the MTF for the proper pixel shape is currently in progress for a centroidal configuration of a target position. MTF will give us a more complete understanding of the tradeoffs opposed by the different pixel designs and by the signal processing conditions. Based on image sensor sampling and reconstructing model
the MTF expression of any active pixel shape has been deduced in this paper. According to actual pixel shape
three different active area pixels were analyzed
they were square
rectangle
and L shape
their Fill Factor (FF) is 30%
44% and 55%
respectively. Results of simulation experiments indicate that different pixel geometrical characteristics contribute significantly to the figures of their MTF. Different geometrical shape of active sensitive area of pixel and different station in pixel would influence MTF figures. The analysis results are important in designing better APS pixel and more important in analyzing imaging system performance of APS subpixel precision system.
Active pixel sensor geometrical characteristic effects on star image subdivided locating accuracy for star tracker (EI CONFERENCE)
会议论文
OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Liu J.
;
Liu J.
;
Liu J.
;
Li J.
;
Li J.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
Active pixel sensor (APS) star tracker becomes an investigated hotspot because of its technical advantages. And centroid algorithm is a subpixel method proper to star position calculation because of its high accuracy and simplicity. When centroid algorithm is applied on APS star tracker
APS pixel geometrical characteristics might effect on star image position accuracy. Because the amplifier circuit and other function circuits inter pixel of APS take up some pixel area
the Fill Factor is less than 100%. Moreover
the active sensitive area has a certain geometrical shape
such as square
rectangle and L shape. The Fill Factor of pixel influences on star image subdivided locating accuracy when using centioid algorithm. In this paper
we have analyzed all pixel geometrical characteristics influence on the star position accuracy. From simulation experiments
we can conclude that Fill factor and pixel geometric shape influence on star position accuracy. The star locating error increased when Fill Factor decreased
and different geometrical shape of active sensitive area of pixel can make different influence on star location accuracy
the symmetrical sensitive area in x or y axis have symmetrical location error in the same axis.