机构

• 长春光学精密机械与物... [4]
• 光电技术研究所 [3]
• 力学研究所 [1]
• 深海科学与工程研究所 [1]
• 西安光学精密机械研究... [1]

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• OAI收割 [10]

内容类型

• 期刊论文 [6]
• 会议论文 [4]

发表日期

• 2021 [1]
• 2016 [2]
• 2014 [1]
• 2013 [1]
• 2011 [2]
• 2009 [1]
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学科主题

• 固体力学::结构优化... [1]

筛选

浏览/检索结果: 共10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 Pruned Distributed and Parallel Subarray Beamforming for 3-D Underwater Imaging With Fine-Grid Sparse Arrays 期刊论文  OAI收割 IEEE JOURNAL OF OCEANIC ENGINEERING, 2021, 卷号: 46, 期号: 4, 页码: 1356-1371 作者:  Zhao, Dongdong;  Chen, Peng;  Hu, Yingtian;  Liang, Ronghua;  Wang, Haixia   |  收藏  |  浏览/下载：74/0  |  提交时间：2021/11/16 Array signal processing  Imaging  Planar arrays  Indexes  Genetic algorithms  Hardware  Transforms  Acoustic imaging  digital beamforming  fine-grid sparse arrays  pruned fast Fourier transform (FFT)  real-time 3-D underwater imaging  simulated annealing (SA) algorithm   Design of and experiment on the polarization dehazing imaging system 期刊论文  OAI收割 xi'an dianzi keji daxue xuebao/journal of xidian university, 2016, 卷号: 43, 期号: 2, 页码: 95-101 作者:  Xia, Pu;  Liu, Xuebin;  Yan, Peng 收藏  |  浏览/下载：40/0  |  提交时间：2016/10/12 CMOS integrated circuits  Digital signal processors  Field programmable gate arrays (FPGA)  Fog  Fog dispersal  Imaging systems  Integrated circuit design  Metals  MOS devices  Oxide semiconductors  Polarization  Real time systems  Signal processing   Real-time Signal Processing for Shipborne FOG Based on Lifting Wavelet Analysis 期刊论文  OAI收割 AER-Advances in Engineering Research: 5th International Conference on Environment, Materials, Chemistry and Power Electronics (EMCPE), 2016, 卷号: 84, 页码: 222-226 作者:  Yi, Bin;  Bao, Qiliang   |  收藏  |  浏览/下载：29/0  |  提交时间：2018/06/14 Lifting Wavelet  Shipborne Fog  Real-time Signal Processing   Acceleration of optical coherence tomography signal processing by multi-graphics processing units 期刊论文  OAI收割 JOURNAL OF INNOVATIVE OPTICAL HEALTH SCIENCES, 2014, 卷号: 7, 期号: 3 作者:  Li, Xiqi;  Shi, Guohua;  Huang, Ping;  Zhang, Yudong 收藏  |  浏览/下载：17/0  |  提交时间：2015/07/10 Optical coherence tomography  real-time signal processing  multi graphics processing units   An integrated approach for structural damage identification using wavelet neuro-fuzzy model 期刊论文  OAI收割 EXPERT SYSTEMS WITH APPLICATIONS, 2013, 卷号: 40, 期号: 18, 页码: 7415-7427 作者:  Zhu FT;  Deng ZM;  Zhang JF(张均锋) 收藏  |  浏览/下载：134/0  |  提交时间：2013/11/18 Signal processing approach  Structural damage identification  Wavelet real-time filtering algorithm  Adaptive Neuro-Fuzzy Inference System  Interval modeling technique   Laser pulse coded signal frequency measuring device based on DSP and CPLD (EI CONFERENCE) 会议论文  OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, May 24, 2011 - May 26, 2011, Beijing, China 作者:  Zhang H.-B.;  Wang T.-F.;  Guo R.-H.;  Li Y.;  Li Y. 收藏  |  浏览/下载：37/0  |  提交时间：2013/03/25 Laser pulse code is an anti-jamming measures used in semi-active laser guided weapons. On account of the laser-guided signals adopting pulse coding mode and the weak signal processing  it need complex calculations in the frequency measurement process according to the laser pulse code signal time correlation to meet the request in optoelectronic countermeasures in semi-active laser guided weapons. To ensure accurately completing frequency measurement in a short time  it needed to carry out self-related process with the pulse arrival time series composed of pulse arrival time  calculate the signal repetition period  and then identify the letter type to achieve signal decoding from determining the time value  number and rank number in a signal cycle by Using CPLD and DSP for signal processing chip  designing a laser-guided signal frequency measurement in the pulse frequency measurement device  improving the signal processing capability through the appropriate software algorithms. In this article  we introduced the principle of frequency measurement of the device  described the hardware components of the device  the system works and software  analyzed the impact of some system factors on the accuracy of the measurement. The experimental results indicated that this system improve the accuracy of the measurement under the premise of volume  real-time  anti-interference  low power of the laser pulse frequency measuring device. The practicality of the design  reliability has been demonstrated from the experimental point of view.   TIME-DOMAIN INTERPOLATION ON GRAPHICS PROCESSING UNIT 期刊论文  OAI收割 JOURNAL OF INNOVATIVE OPTICAL HEALTH SCIENCES, 2011, 卷号: 4, 期号: 1, 页码: 89-95 作者:  Li, Xiqi;  Shi, Guohua;  Zhang, Yudong 收藏  |  浏览/下载：21/0  |  提交时间：2015/09/21 Optical coherence tomography  real-time signal processing  graphics processing unit  GPU  CUDA   A high-speed acquisition and processing system of the laser speckle signal on the magnetic fluid (EI CONFERENCE) 会议论文  OAI收割 International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China 作者:  Sun Y.;  Sun Y.;  Wan Q.-H. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 In order to achieve the dynamical detection and real-time analysis of the movement status of the magnetic fluid  according to the difficulties of the detection of the magnetic fluid  established a high-speed acquisition and processing system of laser speckle signal on the magnetic fluid. First of all  the FPGA (EP2C8T144C8N) drived the linear array CCD(TCD1501D) to scan in the corresponding time sequence given by the computer  collected the laser speckle interferometric image in rapid change on the surface of the magnetic fluid  which followed the movement of the magnetic fluid  and the signal collected by CCD was converted into the digital data through the high-speed A/D convertor and stored into the internal buffer FIFO of the FPGA  whose width and depth were designed by the user as required. Then  the FPGA sent the digital signal of the laser speckle interferometric images into the computer through the USB2.0 highspeed differential bus  whose transmission rate can reach 480Mb/s in theory. Finally  the distribution of the laser speckle on the magnetic fluid was messy and random  which carried certain information about the surface of the magnetic fluid  based on the theories of the statistic correlation and the subdivision of images  analysing and processing the laser speckle interferometric images  indirectly got the movement status of the magnetic fluid under the electromagnetic field. The experimental results show that: the High Speed Acquisition and Processing System has the advantage of full-court  non-contact  non-invasive  high-precision and high reliability and so on. The detection resolution of high speed acquisition and processing system is superior to 1m and the sample rate is 3Msps  which basically meets the requirements of the magnetic fluid movement state detection. 2009 SPIE.   Real-time quality control on a smart camera (EI CONFERENCE) 会议论文  OAI收割 ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China Xiao C.; Zhou H.; Li G.; Hao Z. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 A smart camera is composed of a video sensing  high-level video processing  communication and other affiliations within a single device. Such cameras are very important devices in quality control systems. This paper presents a prototyping development of a smart camera for quality control. The smart camera is divided to four parts: a CMOS sensor  a digital signal processor (DSP)  a CPLD and a display device. In order to improving the processing speed  low-level and high-level video processing algorithms are discussed to the embedded DSP-based platforms. The algorithms can quickly and automatic detect productions' quality defaults. All algorithms are tested under a Matlab-based prototyping implementation and migrated to the smart camera. The smart camera prototype automatic processes the video data and streams the results of the video data to the display devices and control devices. Control signals are send to produce-line to adjust the producing state within the required real-time constrains.   AE signal processing and DSP implementation based on wavelet packet analysis (EI CONFERENCE) 会议论文  OAI收割 ICMIT 2005: Information Systems and Signal Processing, September 20, 2005 - September 23, 2005, Changchun, China 作者:  Zhao J.;  Wang K. 收藏  |  浏览/下载：12/0  |  提交时间：2013/03/25 To improve the accuracy of AE (Acoustic Emission) testing  the wavelet packet analysis was introduced to process the AE signals. Extraction of the fault characteristic information would be influenced greatly if the faulted AE signal was not effectively denoised. Based on discussing the fast searching algorithm of BWPB (Best Wavelet Packet Basis) adopting Shannon entropy  a new method based on BWPB was presented to denoise the AE signal from the faulted composite plate. Analyzing was performed on the denoised signal and the fault characteristic information was exacted. To improve the real-time performance of the wavelet packet analysis algorithm  it was performed on the DSP (Digital Signal Processing) chip TMS320VC5409. The experimental results show that the algorithm can not only reduce the noise by 10dB but also effectively extract the faulted characteristics information from the AE signal.