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公开(公告)号：US20080316089A1
公开(公告)日：2008-12-25
申请号：US11620975
申请日：2007-01-08
Applicant: Andrew Forgrieve , Tim B. Freedman , John M. Noll
Inventor： Andrew Forgrieve , Tim B. Freedman , John M. Noll
IPC: G01S13/89
Abstract: Systems and methods for identifying and uniquely displaying ground features (terrain/obstacles) that are shadowed from an aircrafts radar system. An example system includes one or more aircraft information, sources, a database that stores three-dimensional terrain/obstacle data, a display device, and a processor in data communication with the one or more aircraft information sources and the database. The processor receives aircraft position, heading and altitude information from the one or more aircraft information sources. The processor projects a vector in a three-dimensional digital space onto the three-dimensional terrain/obstacle data stored in the database based on the received aircraft position, heading and altitude information to determine if the projected vector intersects more than one terrain feature. If the feature is intersected by the vector and the feature is further away from the aircraft than another feature that is also intersected by the vector, it is uniquely displayed on the display device.
Abstract translation: 用于识别和唯一显示来自飞机雷达系统的地面特征（地形/障碍物）的系统和方法。 示例系统包括一个或多个飞行器信息，源，存储三维地形/障碍物数据的数据库，显示设备和与所述一个或多个飞行器信息源和数据库进行数据通信的处理器。 处理器从一个或多个飞行器信息源接收飞机位置，航向和高度信息。 处理器根据接收到的飞机位置，航向和高度信息，将三维数字空间中的矢量投影到存储在数据库中的三维地形/障碍物数据上，以确定投影矢量是否与多于一个地形特征相交。 如果该特征与矢量相交，并且该特征离飞行器更远离另一个也被矢量相交的特征，则其在显示装置上被唯一地显示。
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公开(公告)号：US06683552B2
公开(公告)日：2004-01-27
申请号：US10024100
申请日：2001-12-17
Applicant: John M. Noll , Brian P. Bunch , Sundara Murthy
Inventor： John M. Noll , Brian P. Bunch , Sundara Murthy
IPC: H03M112
CPC classification number: H03M1/188
Abstract: A dual analog-to-digital (A/D) converter circuit having two separate channels coupled to receive a single analog input signal, each of the two channels includes a means for converting an analog input signal to a digital signal at respective sample times that are adjustable to be substantially simultaneous; a means for adjusting the gain of the two channels to differ by a predetermined factor; a means for detecting a channel overflow condition in one of the two channels having a higher gain; and a means for merging the two channels into a continuous output stream.
Abstract translation: 具有耦合以接收单个模拟输入信号的两个单独通道的双模数（A / D）转换器电路，两个通道中的每一个通道包括用于将模拟输入信号转换成数字信号的装置， 可调节为基本同时; 用于调节两个通道的增益以相差预定因子的装置; 用于检测具有较高增益的两个信道之一中的信道溢出状态的装置; 以及用于将两个通道合并成连续输出流的装置。
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公开(公告)号：US5315305A
公开(公告)日：1994-05-24
申请号：US41014
申请日：1993-03-31
Applicant: John M. Noll
Inventor： John M. Noll
CPC classification number: G01S7/298
Abstract: Radar data vectors of a desired number of pixels in length are scan converted, at a desired angular rate. A complete 360 degree radar data scan is maintained in memory. A raster image of a desired number of pixels in size and of arbitrary position and angular orientation with respect to the radar scan in memory is outputted. The resolution of the raster output image is varied to adjust its update rate. A high resolution, motion stabilizing radar display is provided and a multiresolution capability is available to eliminate image artifacts attributed to raster image update rate.
Abstract translation: 以期望的角速率扫描转换所需长度的像素数的雷达数据向量。 内存中维护完整的360度雷达数据扫描。 输出相对于存储器中的雷达扫描的尺寸和任意位置和角度定向的所需数量的像素的光栅图像。 改变光栅输出图像的分辨率来调整其更新速率。 提供了高分辨率，运动稳定的雷达显示器，并且可以使用多分辨能力来消除归因于光栅图像更新速率的图像伪影。
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公开(公告)号：US07489268B2
公开(公告)日：2009-02-10
申请号：US11620975
申请日：2007-01-08
Applicant: Andrew Forgrieve , Tim B. Freedman , John M. Noll
Inventor： Andrew Forgrieve , Tim B. Freedman , John M. Noll
Abstract: Systems and methods for identifying and uniquely displaying ground features (terrain/obstacles) that are shadowed from an aircrafts radar system. An example system includes one or more aircraft information, sources, a database that stores three-dimensional terrain/obstacle data, a display device, and a processor in data communication with the one or more aircraft information sources and the database. The processor receives aircraft position, heading and altitude information from the one or more aircraft information sources. The processor projects a vector in a three-dimensional digital space onto the three-dimensional terrain/obstacle data stored in the database based on the received aircraft position, heading and altitude information to determine if the projected vector intersects more than one terrain feature. If the feature is intersected by the vector and the feature is further away from the aircraft than another feature that is also intersected by the vector, it is uniquely displayed on the display device.
Abstract translation: 用于识别和唯一显示来自飞机雷达系统的地面特征（地形/障碍物）的系统和方法。 示例系统包括一个或多个飞行器信息，源，存储三维地形/障碍物数据的数据库，显示设备和与所述一个或多个飞行器信息源和数据库进行数据通信的处理器。 处理器从一个或多个飞行器信息源接收飞机位置，航向和高度信息。 处理器根据接收到的飞机位置，航向和高度信息，将三维数字空间中的矢量投影到存储在数据库中的三维地形/障碍物数据上，以确定投影矢量是否与多于一个地形特征相交。 如果该特征与矢量相交，并且该特征离飞行器更远离另一个也被矢量相交的特征，则其在显示装置上被唯一地显示。
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