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• 光学 [1]
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浏览/检索结果: 共22条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Robust Sparse Bayesian Two-Dimensional Direction-of-Arrival Estimation with Gain-Phase Errors 期刊论文  OAI收割 SENSORS, 2023, 卷号: 23, 期号: 23, 页码: 17 作者:  Jin, Xu;  Wang, Xuhu;  Hou, Yujun;  Hao, Siyuan;  Wang, Xinjie   |  收藏  |  浏览/下载：20/0  |  提交时间：2024/04/07 two-dimensional direction-of-arrival (2D DOA)  gain-phase errors  sparse signal reconstruction  sparse Bayesian learning  L-shaped array   Period-timing bifurcation evolution in a nonlinear polarization rotation fiber laser 期刊论文  OAI收割 OPTIK, 2022, 卷号: 268 作者:  Ban, Xiaoqiang;  Li, Xiaohui;  Dong, Bo;  Huang, Wobin;  Zhong, Ming   |  收藏  |  浏览/下载：39/0  |  提交时间：2022/10/25 Period -timing bifurcation  Passive fiber resonator  Soliton molecule  Small signal gain  Phase delay   A signal separation method based on the subarray beam synthesis 期刊论文  OAI收割 IET RADAR SONAR AND NAVIGATION, 2022 作者:  Liu, Chengzhou;  Wang, Jianhui;  Cui, Weijia   |  收藏  |  浏览/下载：37/0  |  提交时间：2022/10/25 beamforming  gain and phase error calibration  large-scale array  signal separation   Low-Power RF Signal Detection Using a High-Gain Tunable OEO Based on Equivalent Phase Modulation 期刊论文  OAI收割 JOURNAL OF LIGHTWAVE TECHNOLOGY, 2019, 卷号: 37, 期号: 21, 页码: 5370-5379 作者:  Shao, Yuchen;  Han, Xiuyou;  Ye, Qing;  Zhu, Boqin;  Dai, Yitang   |  收藏  |  浏览/下载：41/0  |  提交时间：2020/03/10 RF signals  Signal detection  Optical sensors  Optical filters  Gain  Amplitude modulation  Optical reflection  Equivalent phase modulation  low power RF signal detection  optoelectronic oscillator  phase-shifted fiber Bragg grating   Large Format High SNR SWIR HgCdTe/Si FPA With Multiple-choice Gain for Hyperspectral Detection 会议论文  OAI收割 作者:  Hu XN;  Huang AB;  Liao QJ;  Chen L;  Chen X   |  收藏  |  浏览/下载：34/0  |  提交时间：2018/11/20 hyperspectral detection  SWIR  HgCdTe/Si FPA  stress-release  multiple-choice gain  signal to Noise Ratio   Experimental study of diode-pumped Nd, Y: CaF2 amplifier for inertial confinement fusion laser driver 期刊论文  OAI收割 ACTA PHYSICA SINICA, 2016, 卷号: 65, 期号: 20 作者:  Tang Xiong-Xin;  Qiu Ji-Si;  Fan Zhong-Wei;  Wang Hao-Cheng;  Liu Yue-Liang 收藏  |  浏览/下载：32/0  |  提交时间：2017/02/23 laser amplifier  sidepumped  small signal gain  Nd  Y:CaF2   X-ray focusing optics and its application in X-ray communication system 期刊论文  OAI收割 acta physica sinica, 2016, 卷号: 65, 期号: 1, 页码: 010703 作者:  Liu Duo;  Qiang Peng-Fei;  Li Lin-Sen;  Su Tong;  Sheng Li-Zhi 收藏  |  浏览/下载：34/0  |  提交时间：2016/02/23 X-ray communication  X-ray focusing optics  communication antenna  signal gain   High gain avalanche photodiode (APD) arrays in flow cytometer opitical system (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Multimedia Technology, ICMT 2011, July 26, 2011 - July 28, 2011, Hangzhou, China 作者:  Chen Y.;  Tang Y.;  Wang C.;  Zhao S. 收藏  |  浏览/下载：45/0  |  提交时间：2013/03/25 The basic principles of flow cytometer are introduced  on the basis of diode pump solid state laser (532 nm) as a excitation source and a high gain avalanche photodiode (APD) arrays as a light detector  a verification opitical system is built. Then  Spherotech Rainbow Calibration Particle RCP-30-5A is used to evaluate the performance of the opitical system  the fluorescence PE signal histogram of RCP-30-5A microshphere shows that the number of individual peaks is close to eight  which is close to the world advanced level. 2011 IEEE.   Neural network based online traffic signal controller design with reinforcement training (EI CONFERENCE) 会议论文  OAI收割 14th IEEE International Intelligent Transportation Systems Conference, ITSC 2011, October 5, 2011 - October 7, 2011, Washington, DC, United states Dai Y.; Hu J.; Zhao D.; Zhu F. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 Traffic congestion leads to problems like delays  decreasing flow rate  and higher fuel consumption. Consequently  keeping traffic moving as efficiently as possible is not only important to economy but also important to environment. Traffic system is a large complex nonlinear stochastic system. Traditional mathematical methods have some limitations when they are applied in traffic control. Thus  computational intelligence (CI) technologies gain more and more attentions. Neural Networks (NNs) is a well developed CI technology with lots of promising applications in traffic signal control (TSC). In this paper  a neural network (NN) based signal controller is designed to control the traffic lights in an urban traffic road network. Scenarios of simulation are conducted under a microscopic traffic simulation software. Several criterions are collected. Results demonstrate that through online reinforcement training the controllers obtain better control effects than the widely used pre-time and actuated methods under various traffic conditions. 2011 IEEE.   Design of high-speed low-noise pre-amplifier for CCD camera (EI CONFERENCE) 会议论文  OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China 作者:  Zhang S. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 Pre-amplifier circuit is critical for the noise performance of the high speed CCD camera. Its main functions are amplification and impedance transform. The high speed and low noise pre-amplifier of CCD camera is discussed and designed in this paper. The high speed and low noise operational amplifier OPA842 is adopted as the main part. The gain-set resistors for the amplifier are designed optimally. The different precision gain-set resistors are swept using Monte Carlo method. CCD video signal which has high DC offset voltage is AC coupled to the amplifier. The output signal of the amplifier is source terminated using 50 ohms matching resistor so as to transmit the video signal through coaxial cable. When the circuit works in high speed  the PCB will have important effect to circuit performance and can even cause the amplifier unstable due to the parasitic problem of PCB. So the parasitic model of the PCB is established and the PCB layout design issues are also presented. The design result shows that the pre-amplifier can be used in the camera whose pixel rate could be up to 40 MHz and its input referred noise density is about 3 nV/Hz 1/2. 2010 Copyright SPIE - The International Society for Optical Engineering.