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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [4]
昆明植物研究所 [2]
西双版纳热带植物园 [1]
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国家授时中心 [1]
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OAI收割 [9]
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期刊论文 [5]
会议论文 [4]
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2017 [2]
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Chaotic Orthogonal Composite Sequence for 5G NR Time Service Signal Capture Algorithm
期刊论文
OAI收割
ELECTRONICS, 2024, 卷号: 13, 期号: 13, 页码: 16
作者:
Mao, Zhiwei
;
Wu, Huabing
;
Zhao, Dangli
;
Jiang, Xingbo
  |  
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2025/04/03
PNT system
5G
5G NR time service signal
chaotic orthogonal composite sequence
timing signal capture
Phylogenomics and the flowering plant tree of life
期刊论文
OAI收割
JOURNAL OF INTEGRATIVE PLANT BIOLOGY, 2022
作者:
Guo, Cen
;
Luo, Yang
;
Gao, Lian-Ming
;
Yi, Ting-Shuang
;
Li, Hong-Tao
  |  
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2024/08/21
angiosperms
hybridization
incomplete lineage sorting
orthology inference
phylogenetic conflicts
reduced representation sequencing
whole-genome sequencing
whole-genome duplication
SYSTEMATIC-ERRORS
RNA-SEQ
SEQUENCE CAPTURE
SEED PLANTS
DATA SETS
GENOME
EVOLUTION
RADSEQ
TOOL
CLASSIFICATION
Phylogeny and reclassification of Aconitum subgenus Lycoctonum (Ranunculaceae)
期刊论文
OAI收割
PLOS ONE, 2017, 卷号: 12, 期号: 1, 页码: e0171038
Hong, Yu
;
Luo, Yan
;
Gao, Qi
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2017/05/16
CHLOROPLAST CAPTURE
TREE SELECTION
CHINA
HYBRIDIZATION
MODEL
GENUS
HIMALAYAS
EVOLUTION
INFERENCE
SEQUENCE
The Compositae Tree of Life in the age of phylogenomics
期刊论文
OAI收割
JOURNAL OF SYSTEMATICS AND EVOLUTION, 2017, 卷号: 55, 期号: 4, 页码: 405-410
作者:
Mandel, Jennifer R.
;
Barker, Michael S.
;
Bayer, Randall J.
;
Dikow, Rebecca B.
;
Gao, Tian-Gang
  |  
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2022/03/28
chloroplast
gene-tree
genomes
Hyb-Seq
next-generation sequencing
nuclear
phylogenetics
sequence capture
transcriptome
Systematics of the genus Salweenia (Leguminosae) from Southwest China with discovery of a second species
期刊论文
OAI收割
TAXON, 2011, 卷号: 60, 期号: 5, 页码: 1366-1374
作者:
Yue, Xue-Kun
;
Yue, Ji-Pei
;
Yang, Li-Er
;
Li, Zhi-Min
;
Sun, Hang
  |  
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2012/03/16
Chloroplast Dna Sequence
Cytology
Morphology
New Species
River Capture
Sophoreae
Vicariance
The new approach for infrared target tracking based on the particle filter algorithm (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:
Sun H.
;
Han H.-X.
;
Sun H.
收藏
  |  
浏览/下载:56/0
  |  
提交时间:2013/03/25
Target tracking on the complex background in the infrared image sequence is hot research field. It provides the important basis in some fields such as video monitoring
precision
and video compression human-computer interaction. As a typical algorithms in the target tracking framework based on filtering and data connection
the particle filter with non-parameter estimation characteristic have ability to deal with nonlinear and non-Gaussian problems so it were widely used. There are various forms of density in the particle filter algorithm to make it valid when target occlusion occurred or recover tracking back from failure in track procedure
but in order to capture the change of the state space
it need a certain amount of particles to ensure samples is enough
and this number will increase in accompany with dimension and increase exponentially
this led to the increased amount of calculation is presented. In this paper particle filter algorithm and the Mean shift will be combined. Aiming at deficiencies of the classic mean shift Tracking algorithm easily trapped into local minima and Unable to get global optimal under the complex background. From these two perspectives that "adaptive multiple information fusion" and "with particle filter framework combining"
we expand the classic Mean Shift tracking framework.Based on the previous perspective
we proposed an improved Mean Shift infrared target tracking algorithm based on multiple information fusion. In the analysis of the infrared characteristics of target basis
Algorithm firstly extracted target gray and edge character and Proposed to guide the above two characteristics by the moving of the target information thus we can get new sports guide grayscale characteristics and motion guide border feature. Then proposes a new adaptive fusion mechanism
used these two new information adaptive to integrate into the Mean Shift tracking framework. Finally we designed a kind of automatic target model updating strategy to further improve tracking performance. Experimental results show that this algorithm can compensate shortcoming of the particle filter has too much computation
and can effectively overcome the fault that mean shift is easy to fall into local extreme value instead of global maximum value.Last because of the gray and fusion target motion information
this approach also inhibit interference from the background
ultimately improve the stability and the real-time of the target track. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Station mode for attitude determination of small-multi-target with high speed (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010, November 7, 2010 - November 9, 2010, Henan, China
作者:
Wang J.
;
Zhao L.
;
Li M.
收藏
  |  
浏览/下载:25/0
  |  
提交时间:2013/03/25
A key problem of attitude measurement of small-multi-target with high speed is how to decide the optimum of the CMOS stations. A multi-CMOS station mode is designed in this paper
multiple CMOS videos were placed on two parallel sides in measurement system
every two CMOS form an intersection viewing field
multiple viewing field join to cover shooting range
which can augment Effective Viewing Field(EVF)
increase capture ratio of objects with high speed and measurement precision of small objects. When an object passes through the joint area
it will be imaged separately on each CMOS focal plane. Multiple CMOS videos were triggered synchronously
a sequence of image information was extracted
the target attitude was confirmed by digital image processing technology. The merit of station mode is low cost
large measurement scope
extending freely and so on. 2010 IEEE.
Software radio research of spread spectrum communication system (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer Application and System Modeling, ICCASM 2010, October 22, 2010 - October 24, 2010, Shanxi, Taiyuan, China
Tan Z.-J.
;
Shi Y.
;
Zhong Z.-J.
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2013/03/25
Developing status of software radio is introduced. The configuration of software radio in direct sequence spread spectrum communication system is realized
which are composed of the configurations of both transmitter and receiver. The capture and stealth problems of extended coding phase are researched. At last
the working status of BPSK and QPSK modulated system is emulated using DSP emulator CCS2.0
and the result is satisfying. 2010 IEEE.
High-speed CCD camera system for the measurement of flight time of cannonballs (EI CONFERENCE)
会议论文
OAI收割
2005 Beijing International Conference on Imaging: Technology and Applications for the 21st Century, May 23, 2005 - May 26, 2005, Beijing, China
作者:
Gong Y.
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/03/25
We have built a high-speed
sensitive camera system to capture the image sequence of cannonballs with accurate time reference
which can measure the flight time of cannonballs between leaving the cannon and explosion precisely. The camera system is composed of two identical cameras of high frame frequency linear CCD calibrated with the same time base. In this paper we present the operating principle of the camera system and discuss the scheme of high-speed processing of volumes of image data. The real-time measurement less than 1 millisecond can be achieved by the proposed approach.