Method and apparatus for estimating state parameter in nonlinear discrete time system
    1.
    发明授权
    Method and apparatus for estimating state parameter in nonlinear discrete time system 有权
    用于估计非线性离散时间系统中状态参数的方法和装置

    公开(公告)号:US07031890B2

    公开(公告)日:2006-04-18

    申请号:US09791733

    申请日:2001-02-26

    IPC分类号: G06F17/50

    CPC分类号: G06F17/10

    摘要: A method and apparatus for estimating a state parameter in a nonlinear discrete time system are provided. The method for estimating a state parameter has the steps of (a) predicting a state parameter at a current time using an estimated state parameter at a previous time and a system dynamics; and (b) estimating an optimal state parameter at the current time from the state parameter predicted in the step (a) and a system output parameter measured at the current time, using a geometric data fusion method. Since the method and apparatus for estimating a state parameter have an excellent estimation performance particularly when nonlinearity is great or the error in an estimated initial value is big, the method and apparatus solve many problems, which cannot be solved by the conventional extended Kalman filter, and more improve the performance of estimating a state parameter, by analyzing the system characteristic and then appropriately utilizing constraints such as the operation range of the state parameter.

    摘要翻译: 提供了一种用于估计非线性离散时间系统中的状态参数的方法和装置。 用于估计状态参数的方法具有以下步骤:(a)使用前一时间的估计状态参数和系统动态来预测当前时间的状态参数; 以及(b)使用几何数据融合方法,从当前时刻所预测的状态参数和当前时刻测定的系统输出参数,估计当前时刻的最佳状态参数。 由于用于估计状态参数的方法和装置具有优异的估计性能,特别是当非线性大或估计初始值的误差大时,该方法和装置解决了常规扩展卡尔曼滤波器无法解决的许多问题, 并且通过分析系统特性,然后适当地利用诸如状态参数的操作范围的约束,来提高估计状态参数的性能。

    Method for modeling roadway and method for recognizing lane markers
based on the same
    3.
    发明授权
    Method for modeling roadway and method for recognizing lane markers based on the same 失效
    巷道建模方法及其识别方法

    公开(公告)号:US6133824A

    公开(公告)日:2000-10-17

    申请号:US379594

    申请日:1999-08-24

    摘要: A method for modeling a roadway and a method for recognizing lane markers based on the modeling method. The method for recognizing lane markers of roadway for a vehicle by getting image information about the roadway and information about the speed and steering angle using a camera and a sensor attached to the vehicle, includes the steps of modeling the actual roadway on which the vehicle travels, as a structure having a plurality of rectangular plates linked to each other. The modeled plates are overlayed onto the image information about the actual roadway, photographed by the camera, pixels forming the lane markers are extracted, and linear lane marker information is then obtained from the pixels forming the land markers. Then, the linear lane marker information is overlayed onto the modeled plates to recalculate lane marker information using the plates as a frame, and predetermined limitations of the features of the lane markers are applied to the plates onto which the linear lane marker information has been overlayed, to optimize the lane marker information. Then, the roadway on which the vehicle is traveling, is remodeled using the optimized lane marker information, the information about the speed and steering angle of the vehicle measured by the sensor, and the information about the modeled plates, and the position and orientation of the remodeled plates are calculated. Therefore, roadway recognition can be easily achieved using a modeled structure of the roadway, in which a plurality of rectangular plates are linked. Also, the model roadway is repeatedly mapped onto the actual roadway image, so that reliability in recognition of roadway increases.

    摘要翻译: 基于建模方法的道路建模方法和车道识别识别方法。 通过使用摄像机和安装在车辆上的传感器获取关于车道的图像信息和关于速度和转向角的信息来识别车辆道路车道标记的方法包括以下步骤:对车辆行进的实际道路进行建模 作为具有彼此连接的多个矩形板的结构。 将建模的板叠加在由相机拍摄的关于实际道路的图像信息上,提取形成车道标记的像素,然后从形成陆地标记的像素获得线性车道标记信息。 然后,将线性车道标记信息覆盖在建模的板上,以板为框重新计算车道标记信息,并且将车道标记的特征的预定限制应用于已经覆盖线性车道标记信息的板 ,以优化车道标记信息。 然后,使用优化的车道标记信息,由传感器测量的关于车辆的速度和转向角的信息以及关于模型板的信息,以及关于车辆行驶的道路的位置和方位 计算出改造后的板材。 因此,可以使用多个矩形板连接的道路的建模结构容易地实现道路识别。 此外,模型道路被重复地映射到实际的道路图像上,使得道路识别的可靠性增加。

    Ambulatory robot and method for controlling the same
    4.
    发明授权
    Ambulatory robot and method for controlling the same 失效
    动作机器人及其控制方法

    公开(公告)号:US07561941B2

    公开(公告)日:2009-07-14

    申请号:US10763395

    申请日:2004-01-26

    摘要: An ambulatory robot including a lower body part having two or more legs and an upper body part installed on an upper end of the lower body part and capable of performing positional displacement by moving the lower body part, includes slope-detection means for sensing a slope of a floor, rotating means installed on a bottom surface of each of the two or more legs, and control means for controlling a motion of the ambulatory robot using the lower and upper body parts, wherein the control means controls a speed of revolution of the rotating means based on the slope of the floor, and controls the motion of the ambulatory robot so that the positional displacement of the ambulatory robot is performed by any of running, walking and sliding, depending on the controlled speed of revolution.

    摘要翻译: 一种行走机器人,包括具有两个或更多个腿的下身部分和安装在下身部的上端上并能够通过移动下身部进行位置移位的上身部,包括用于感测斜面的倾斜检测装置 位于两个或多个腿部的每个的底面上的旋转装置,以及用于控制使用下部和上部身体部分的步行式机器人运动的控制装置,其中控制装置控制 基于地面坡度的旋转装置,并且控制移动机器人的运动,使得根据控制的转速可以通过行驶,行走和滑动中的任何一个来执行步行式机器人的位置偏移。

    Photonic crystal-based resonant cavity and resonator
    5.
    发明授权
    Photonic crystal-based resonant cavity and resonator 有权
    光子晶体谐振腔和谐振器

    公开(公告)号:US07012946B2

    公开(公告)日:2006-03-14

    申请号:US10724632

    申请日:2003-12-02

    IPC分类号: H01S3/08

    CPC分类号: G02B6/1225 B82Y20/00

    摘要: A photonic crystal-based resonant cavity includes a first dielectric substance having a first dielectric permittivity, a plurality of second dielectric substances having a second dielectric permittivity and arranged in a first periodic structure with respect to at least one or more directions on a plane formed of the first dielectric substance, a plurality of third dielectric substances having a third dielectric permittivity and arranged in a second periodic structure with respect to at least one or more directions on the plane formed of the first dielectric substance, and disposed in unit cells formed by the plurality of second dielectric substances so as to be arranged in a third periodic structure together with the plurality of second dielectric substances, and one or more local defects formed to disrupt either the first periodic structure formed by the second dielectric substances or the second periodic structure formed by the third dielectric substances.

    摘要翻译: 基于光子晶体的谐振腔包括具有第一介电常数的第一电介质物质,具有第二介电常数的多个第二电介质物质,并且相对于至少一个或多个方向以第一周期性结构布置在由 所述第一电介质物质,具有第三介电常数的多个第三电介质物质,并且在由所述第一电介质形成的平面上相对于所述至少一个以上的方向配置在第二周期性结构中, 多个第二电介质物质与多个第二电介质物质一起被布置在第三周期性结构中,并且形成一个或多个局部缺陷,以破坏形成的第二电介质或第二周期性结构形成的第一周期性结构 由第三介电物质。

    Method for patterning self-assembled colloidal photonic crystals and method for fabricating 3-dimensional photonic crystal waveguides of an inverted-opal structure using the patterning method
    6.
    发明申请
    Method for patterning self-assembled colloidal photonic crystals and method for fabricating 3-dimensional photonic crystal waveguides of an inverted-opal structure using the patterning method 有权
    图案化自组装胶体光子晶体的方法和使用图案化方法制造倒置蛋白石结构的三维光子晶体波导的方法

    公开(公告)号:US20070182038A1

    公开(公告)日:2007-08-09

    申请号:US11727944

    申请日:2007-03-29

    IPC分类号: B29D11/00

    摘要: A method for patterning self-assembled colloidal photonic crystals and a method for fabricating three-dimensional photonic crystal waveguides having an inverted-opal structure using the patterning method. The patterning method includes depositing first and second conductive films separate from each other, on an area corresponding to a pattern of the self-assembled colloidal photonic crystals that are to be formed on a substrate and on another area except for the area corresponding to the pattern, respectively, and growing the photonic crystals on the substrate on which the first and second conductive films are deposited by dip-coating in a fluid containing colloidal particles while applying a DC voltage to the respective first and second conductive films. Various types of colloidal photonic crystals can be fabricated depending on the electrode pattern defined on the substrate. Additionally, three-dimensional photonic crystal waveguides of an inverted-opal structure having a photonic band gap in all light-traveling directions can be fabricated.

    摘要翻译: 自组装胶体光子晶体的图案化方法以及使用图案化方法制造具有反蛋白石结构的三维光子晶体波导的方法。 图案化方法包括在与要形成在衬底上的自组装胶体光子晶体的图案相对应的区域上以及除了对应于图案的区域之外的另一区域上沉积彼此分离的第一和第二导电膜 并且通过浸渍涂布在含有胶体颗粒的流体中而在其上将第一和第二导电膜沉积在其上的光子晶体,同时向相应的第一和第二导电膜施加DC电压。 可以根据限定在基板上的电极图案来制造各种类型的胶体光子晶体。 此外,可以制造在所有光行进方向上具有光子带隙的反蛋白石结构的三维光子晶体波导。

    Polarization mode dispersion compensation apparatus using a photonic crystal structure
    8.
    发明授权
    Polarization mode dispersion compensation apparatus using a photonic crystal structure 失效
    使用光子晶体结构的偏振模色散补偿装置

    公开(公告)号:US07206513B2

    公开(公告)日:2007-04-17

    申请号:US10636735

    申请日:2003-08-08

    IPC分类号: H04J14/02

    摘要: A polarization mode dispersion compensation apparatus using a photonic crystal structure includes an optical signal splitter for splitting and outputting incident optical signals into optical signals of a first and second polarization state; an optical signal combiner for combining and outputting the optical signals of the first and second polarization states; an optical signal guide having a photonic crystal structure having a first waveguide and a longer and variable second waveguide; a signal tab for externally outputting a portion of the optical signals and for outputting a portion of the optical signals to a feedback unit; a feedback unit for measuring a dispersion degree of the first and second polarization states inputted from the signal tab, and for outputting a feedback signal for removing the polarization mode dispersion; and an effective optical path length variation unit for varying an effective optical path length of the second waveguide.

    摘要翻译: 使用光子晶体结构的偏振模色散补偿装置包括用于将入射光信号分离并输出到第一和第二偏振状态的光信号的光信号分离器; 光信号组合器,用于组合和输出第一和第二极化状态的光信号; 具有光子晶体结构的光信号引导件,具有第一波导和较长且可变的第二波导; 用于从外部输出光信号的一部分并将一部分光信号输出到反馈单元的信号标签; 反馈单元,用于测量从信号标签输入的第一和第二偏振态的色散度,并输出用于去除偏振模色散的反馈信号; 以及用于改变第二波导的有效光程长度的有效光程长度变化单元。

    Reflective display device using photonic crystals
    9.
    发明授权
    Reflective display device using photonic crystals 有权
    使用光子晶体的反光显示装置

    公开(公告)号:US07145614B2

    公开(公告)日:2006-12-05

    申请号:US10413589

    申请日:2003-04-15

    IPC分类号: G02F1/1335

    摘要: A reflective display device using photonic crystals includes a plurality of reflective color filters, each reflective color filter reflects a predetermined wavelength range of an incident visible light; and a plurality of optical switches disposed adjacent to and facing a corresponding one of the plurality of reflective color filters, each of the plurality of optical switches extracts a predetermined color by adjusting an intensity or on/off-frequency of light reflected from the corresponding one of the plurality of reflective color filters. Accordingly, a reflective display device using photonic crystals may have a simplified structure requiring no conventional reflecting mirror.

    摘要翻译: 使用光子晶体的反射显示装置包括多个反射滤色器,每个反射滤色镜反射入射的可见光的预定波长范围; 以及与所述多个反射滤色器中的相应一个相邻设置的多个光开关,所述多个光开关中的每一个通过调节从相应的一个反射滤光片反射的光的强度或开/关频率来提取预定颜色 的多个反射滤色器。 因此,使用光子晶体的反射显示装置可以具有不需要常规反射镜的简化结构。

    Photonic bandgap optical fiber
    10.
    发明申请
    Photonic bandgap optical fiber 失效
    光子带隙光纤

    公开(公告)号:US20050041945A1

    公开(公告)日:2005-02-24

    申请号:US10921858

    申请日:2004-08-20

    CPC分类号: G02B6/02328 G02B6/02352

    摘要: A photonic band-gap optical fiber is disclosed. The photonic band-gap optical fiber includes a photonic crystal having plural band-gaps. The photonic crystal includes a first medium having a first permittivity; plural second media having a second permittivity, and formed in a first periodic arrangement with respect to at least one or more directions on a plane formed of the first medium; and plural third media having a third permittivity, formed in a second periodic arrangement with respect to at least one or more directions on the plane formed of the first medium, and formed in a third periodic arrangement with respect to at least one or more directions together with the plural second media. The photonic crystal has a hollow portion for propagating light passing through the plane formed of the first medium. The photonic band-gap optical fiber can be used to propagate light of plural, different bands at the same time.

    摘要翻译: 公开了一种光子带隙光纤。 光子带隙光纤包括具有多个带隙的光子晶体。 光子晶体包括具有第一介电常数的第一介质; 具有第二介电常数的多个第二介质,并且在由所述第一介质形成的平面上相对于至少一个或多个方向以第一周期性布置形成; 以及具有第三介电常数的多个第三介质,相对于由第一介质形成的平面上的至少一个或多个方向以第二周期性布置形成,并且相对于至少一个或多个方向在第三周期性布置中形成在一起 与复数第二媒体。 光子晶体具有用于传播通过由第一介质形成的平面的光的中空部分。 光子带隙光纤可以同时传播多个不同频带的光。