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1. 发明申请

US20110137560A1 METHOD AND SYSTEM FOR LATITUDE ADAPTIVE NAVIGATION QUALITY ESTIMATION 有权
标题翻译：用于自适应导航质量估计的方法和系统
公开(公告)号：US20110137560A1
公开(公告)日：2011-06-09
申请号：US12630403
申请日：2009-12-03
申请人： Reed R. May
发明人： Reed R. May
IPC分类号： G01C21/16
CPC分类号： G01C21/16 , G01C19/38 , G01C25/005
摘要： A method and system for navigation quality estimation is provided. The method comprises obtaining an alignment observation, comparing the alignment observation to a current heading estimate, and updating the current heading estimate based on the comparison. A heading error estimate is updated based on the updated current heading estimate, and an estimated drift rate is determined based on the heading error estimate and an operational latitude. A determination is then made whether a drift rate requirement is met by the estimated drift rate. If the drift rate requirement is not met, the method is repeated until the drift rate requirement is met.
摘要翻译：提供了一种用于导航质量估计的方法和系统。该方法包括获得比对观察，比较对准观测与当前航向估计，以及基于比较来更新当前航向估计。基于更新的当前航向估计来更新航向误差估计，并且基于航向误差估计和操作纬度来确定估计漂移率。然后确定漂移率要求是否由估计的漂移率满足。如果不满足漂移率要求，则重复该方法，直到满足漂移率要求为止。

2. 发明授权

US07409292B2 Method and system for degimbalization of vehicle navigation data 失效
标题翻译：车辆导航数据去角化的方法和系统
公开(公告)号：US07409292B2
公开(公告)日：2008-08-05
申请号：US11441907
申请日：2006-05-26
申请人： Charles P. Eckert , Reed R. May , Maurice A. Shrader-Frechette , Delroy J. Sowada , Michael G. Symonds , Michael O. Vaujin , Jeff S. Willis
发明人： Charles P. Eckert , Reed R. May , Maurice A. Shrader-Frechette , Delroy J. Sowada , Michael G. Symonds , Michael O. Vaujin , Jeff S. Willis
IPC分类号： G01C21/30
CPC分类号： G01C21/18 , H01Q1/18
摘要： A method and system for degimbalization of sensor outputs is provided. Data output from an embedded GPS inertial navigation system (EGI), which is mounted within a gimbaled system on a vehicle, is processed to provide degimballed navigation data. Generally, motion of the EGI is due to the vehicle motion and the gimbal motion. To provide navigation information relating solely to the vehicle, effects of the gimbal motion within the EGI outputs can be removed.
摘要翻译：提供了一种用于传感器输出消除偏振的方法和系统。处理安装在车辆上的万向系统中的嵌入式GPS惯性导航系统（EGI）的数据输出，以提供消音导航数据。通常，EGI的运动是由于车辆运动和万向运动。为了提供与车辆有关的导航信息，可以消除EGI输出中的万向运动的影响。

3. 发明授权

US08209117B2 Method and system for latitude adaptive navigation quality estimation 有权
标题翻译：纬度自适应导航质量估算方法与系统
公开(公告)号：US08209117B2
公开(公告)日：2012-06-26
申请号：US12630403
申请日：2009-12-03
申请人： Reed R. May
发明人： Reed R. May
IPC分类号： G01C21/00
CPC分类号： G01C21/16 , G01C19/38 , G01C25/005
摘要： A method and system for navigation quality estimation is provided. The method comprises obtaining an alignment observation, comparing the alignment observation to a current heading estimate, and updating the current heading estimate based on the comparison. A heading error estimate is updated based on the updated current heading estimate, and an estimated drift rate is determined based on the heading error estimate and an operational latitude. A determination is then made whether a drift rate requirement is met by the estimated drift rate. If the drift rate requirement is not met, the method is repeated until the drift rate requirement is met.
摘要翻译：提供了一种用于导航质量估计的方法和系统。该方法包括获得比对观察，比较对准观测与当前航向估计，以及基于比较来更新当前航向估计。基于更新的当前航向估计来更新航向误差估计，并且基于航向误差估计和操作纬度来确定估计漂移率。然后确定漂移率要求是否由估计的漂移率满足。如果不满足漂移率要求，则重复该方法，直到满足漂移率要求为止。

4. 发明申请

US20080039991A1 METHODS AND SYSTEMS FOR PROVIDING ACCURATE VEHICLE POSITIONING 审中-公开
标题翻译：提供精确定位的方法和系统
公开(公告)号：US20080039991A1
公开(公告)日：2008-02-14
申请号：US11463787
申请日：2006-08-10
申请人： Reed R. May , Charles T. Bye
发明人： Reed R. May , Charles T. Bye
IPC分类号： G01C22/00
CPC分类号： G05D1/024 , G05D1/027 , G05D1/0272 , G05D1/0278
摘要： A method for navigating an autonomous vehicle along a desired path is described. The method includes manually navigating the vehicle along the desired path, measuring an environment in the vicinity of the desired path, during the manual navigation, using at least one sensor affixed to the vehicle, storing the environmental measurements as a programmed path within the vehicle, and subsequently utilizing an algorithm, the stored environmental measurements, and additional environmental measurements, to navigate the vehicle along the programmed path.
摘要翻译：描述了沿着所需路径导航自主车辆的方法。该方法包括：在手动导航期间使用固定在车辆上的至少一个传感器，将环境测量值作为编程路径存储在车辆内，沿所需路径手动导航车辆，测量所需路径附近的环境，并且随后利用算法，所存储的环境测量值和附加的环境测量值沿着编程的路径导航车辆。

5. 发明授权

US07609204B2 System and method for dynamically estimating output variances for carrier-smoothing filters 有权
标题翻译：用于动态估计载波平滑滤波器的输出方差的系统和方法
公开(公告)号：US07609204B2
公开(公告)日：2009-10-27
申请号：US11215169
申请日：2005-08-30
申请人： Reed R. May , Kenneth S. Morgan
发明人： Reed R. May , Kenneth S. Morgan
IPC分类号： G01S1/00
CPC分类号： G01S19/15 , G01S19/32 , G01S19/43
摘要： An improved system and method is disclosed for dynamically estimating the output variances of carrier-smoothing filters used, for example, in GPS receivers. By accurately estimating the output variances of the carrier-smoothing filters as they transition from initialization to steady-state operation, it is possible to calculate any required protection levels without having to wait for the filters to fully stabilize. As one example, a system for estimating output variances of a carrier-smoothing filter for use in a satellite navigation system receiver is disclosed, which includes a plurality of smoothing filters associated with a navigation processing unit in a satellite navigation receiver. One or more processors associated with the navigation processing unit executes an algorithm for each smoothing filter, which provides a method for dynamically calculating an output variance for a respective smoothing filter as it transitions in response to new input variance values. The method also predicts the settling point of the output variance for that smoothing filter given a set of pseudorange and carrier-phase values to be applied. Therefore, using this novel output variance prediction method, precision navigation applications such as, for example, airborne GPS-based precision landing system applications can begin operations with suitable calculated protection level values without having to wait for the smoothing filters to stabilize. Thus, such precision landing systems are available for use as soon as the required protection level values are reached.
摘要翻译：公开了一种改进的系统和方法，用于动态估计例如在GPS接收机中使用的载波平滑滤波器的输出方差。通过准确估计载波平滑滤波器从初始化到稳态运行的输出方差，可以计算任何所需的保护电平，而无需等待滤波器完全稳定。作为一个示例，公开了一种用于估计用于卫星导航系统接收机的载波平滑滤波器的输出方差的系统，其包括与卫星导航接收机中的导航处理单元相关联的多个平滑滤波器。与导航处理单元相关联的一个或多个处理器执行每个平滑滤波器的算法，该算法提供一种用于在响应于新的输入方差值而转变时动态计算各个平滑滤波器的输出方差的方法。该方法还预测给定要应用的伪距和载波相位值的集合的平滑滤波器的输出方差的稳定点。因此，使用这种新颖的输出方差预测方法，诸如例如基于机载GPS的精确着陆系统应用的精密导航应用可以开始具有适当计算的保护等级值的操作，而不必等待平滑滤波器稳定。因此，一旦达到所需的保护等级值，这种精密着陆系统就可以使用。

6. 发明授权

US5357258A Arrangement for converting a plan position indicator radar display to a scaled perspective display 失效
标题翻译：将平面位置指示器雷达显示转换成缩放透视显示的布置
公开(公告)号：US5357258A
公开(公告)日：1994-10-18
申请号：US157252
申请日：1993-11-26
申请人： Reed R. May
发明人： Reed R. May
IPC分类号： G01S7/20 , G01S7/298 , G01S7/512
CPC分类号： G01S7/298 , G01S7/20
摘要： A plan position indicator display is converted to a correctly scaled perspective display based on aircraft altitude and display parameters. Two cartesian based display memories are involved. One memory stores the plan position indicator image to be converted and the other memory stores the converted image ready for direct display on a bit-mapped display device. The arrangement is such that a plan position indicator display pixel address is provided for each pixel in the memory which stores the converted image for permitting said latter memory to be completely filled with the most appropriate pixel values at the frame rate without the need for further pixel filling or erasing.
摘要翻译：平面位置指示器显示被转换为基于飞机高度和显示参数的正确缩放的透视显示。涉及两个笛卡尔式显示存储器。一个存储器存储要转换的平面位置指示器图像，并且另一个存储器存储转换图像准备好直接显示在位映射显示设备上。该布置使得为存储转换图像的存储器中的每个像素提供平面位置指示器显示像素地址，以允许以帧速率完全填充最合适的像素值，而不需要进一步的像素填写或删除。

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