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	Research on infrared dim-point target detection and tracking under sea-sky-line complex background (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: Dong Y.-X.; Zhang H.-B.; Li Y.; Li Y.; Li Y. 收藏 \| 浏览/下载：111/0 \| 提交时间：2013/03/25 Target detection and tracking technology in infrared image is an important part of modern military defense system. Infrared dim-point targets detection and recognition under complex background is a difficulty and important strategic value and challenging research topic. The main objects that carrier-borne infrared vigilance system detected are sea-skimming aircrafts and missiles. Due to the characteristics of wide field of view of vigilance system the target is usually under the sea clutter. Detection and recognition of the target will be taken great difficulties.There are some traditional point target detection algorithms such as adaptive background prediction detecting method. When background has dispersion-decreasing structure the traditional target detection algorithms would be more useful. But when the background has large gray gradient such as sea-sky-line sea waves etc.The bigger false-alarm rate will be taken in these local area.It could not obtain satisfactory results. Because dim-point target itself does not have obvious geometry or texture feature in our opinion from the perspective of mathematics the detection of dim-point targets in image is about singular function analysis.And from the perspective image processing analysis the judgment of isolated singularity in the image is key problem. The foregoing points for dim-point targets detection its essence is a separation of target and background of different singularity characteristics.The image from infrared sensor usually accompanied by different kinds of noise. These external noises could be caused by the complicated background or from the sensor itself. The noise might affect target detection and tracking. Therefore the purpose of the image preprocessing is to reduce the effects from noise also to raise the SNR of image and to increase the contrast of target and background. According to the low sea-skimming infrared flying small target characteristics the median filter is used to eliminate noise improve signal-to-noise ratio then the multi-point multi-storey vertical Sobel algorithm will be used to detect the sea-sky-line so that we can segment sea and sky in the image. Finally using centroid tracking method to capture and trace target. This method has been successfully used to trace target under the sea-sky complex background. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
	Random noise filtering technology of piezoelectricity gyro (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Qingjun L.; Yongming Y. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 Inertia sensing elements are usually adopted as the sensors of velocity stabilization loop in airborne photoelectric equipments therefore we need to adopt filtering processing to reduce influence to control system. In this paper which are constituted stabilized control system we analyze the characteristic of noise gyro drift that purpose is reducing the influence of the movement of carrier to visual axis of photoelectric probing system. But gyro and utilize Kalman filtering technology to conduct filtering processing to output signal of gyro especially the piezoelectricity gyro generates drift this method can reduce output noise effectively. The simulation results show that the proposed filtering processing method can improve the low velocity characteristic. 2010 IEEE. which is the main error source of photoelectric stabilized control system
	Influences of quantum noises on direct-modulated properties of 1.3-mu m ingaasp/inp laser diodes 期刊论文 iSwitch采集 Chinese physics, 2006, 卷号: 15, 期号: 9, 页码: 2125-2129 作者: Wang Jun; Ma Xiao-Yu; Bai Yi-Ming; Cao Li; Wu Da-Jin 收藏 \| 浏览/下载：38/0 \| 提交时间：2019/05/12 Ingaasp/inp laser diodes Carrier noise Photon noise Linear approximation method
	Stochastic resonance in single-mode semiconductor lasers 期刊论文 iSwitch采集 Physica a-statistical mechanics and its applications, 2006, 卷号: 368, 期号: 1, 页码: 31-37 作者: Wang, J; Bai, YM; Cao, L; Wu, DJ; Ma, XY 收藏 \| 浏览/下载：23/0 \| 提交时间：2019/05/12 Stochastic resonance Carrier noise Photon noise Semiconductor lasers Linear approximation method
	Stochastic resonance in single-mode semiconductor lasers 期刊论文 OAI收割 physica a-statistical mechanics and its applications, 2006, 卷号: 368, 期号: 1, 页码: 31-37 Wang J; Bai YM; Cao L; Wu DJ; Ma XY 收藏 \| 浏览/下载：93/0 \| 提交时间：2010/04/11 stochastic resonance carrier noise photon noise semiconductor lasers linear approximation method MODULATED BISTABLE SYSTEMS RING LASER NOISE DRIVEN GAIN
	Influences of quantum noises on direct-modulated properties of 1.3-mu m InGaAsP/InP laser diodes 期刊论文 OAI收割 chinese physics, 2006, 卷号: 15, 期号: 9, 页码: 2125-2129 Wang J (Wang Jun); Ma XY (Ma Xiao-Yu); Bai YM (Bai Yi-Ming); Cao L (Cao Li); Wu DJ (Wu Da-Jin) 收藏 \| 浏览/下载：42/0 \| 提交时间：2010/04/11 InGaAsP/InP laser diodes carrier noise photon noise linear approximation method SINGLE-MODE LASER STOCHASTIC RESONANCE RING LASER
	Magnetic field modulated direct overwrite with pulsed laser irradiation for TbFeCo magneto-optical disks 期刊论文 OAI收割 opt. eng., 1997, 卷号: 36, 期号: 9, 页码: 2513, 2516 Wang R; Fan JP; Li XS; 干福熹收藏 \| 浏览/下载：3255/513 \| 提交时间：2009/09/22 magneto-optical storage magnetic field modulation direct overwrite carrier-to-noise ratio