公开(公告)号：US4567483A

公开(公告)日：1986-01-28

申请号：US448862

申请日：1982-12-10

Applicant: Charles D. Bateman ,  Michael M. Grove ,  Lyle J. Noland ,  Wallace E. Ward

Inventor： Charles D. Bateman ,  Michael M. Grove ,  Lyle J. Noland ,  Wallace E. Ward

IPC: G01C21/00 ,  B64D45/04 ,  G01C5/00 ,  G08B23/00 ,  G01S13/00

CPC classification number: G01C5/005

Abstract: In order to reduce nuisance warnings and to increase the effectiveness of real warnings produced by a ground proximity warning system, the criteria for generating a warning is varied for certain airport areas to take into account the terrain in those areas. Along with position data, certain flight parameters such as heading, altitude, glideslope and localizer deviation are checked by the system in order to ensure that the aircraft is located in the desired warning modification area. In addition, the ground proximity warning system includes a mechanism for ensuring that the corrected barometric altitude of the aircraft is within acceptable limits.

Abstract translation: 为了减少滋扰警告并增加地面接近警报系统产生的实际警告的有效性，某些机场区域产生警告的标准会有所不同，以便考虑到这些地区的地形。 与位置数据一起，系统检查某些飞行参数，如航向，高度，滑坡和定位器偏差，以确保飞机位于所需的警告修改区域。 此外，地面接近警报系统包括一种确保飞机校正气压高度在可接受限度内的机构。

公开(公告)号：US4675823A

公开(公告)日：1987-06-23

申请号：US560073

申请日：1983-12-09

Applicant: Lyle J. Noland, deceased

Inventor： Lyle J. Noland, deceased

IPC: G01C5/00 ,  G01C21/00 ,  G06F15/50

CPC classification number: G01C5/005

Abstract: A ground proximity warning system utilizes geographic position data to alter the warning criteria as is required by the terrain features of particular geographic areas. To determine whether the aircraft is within a particular geographic area, the world is subdivided into latitude bands that are in turn subdivided into non-overlapping zones by predetermined lines of longitude, with the position of each zone being defined by the latitude and longitude coordinates of one of its corners. The zones are further defined by regions which may overlap other zones. The regions are limited in size, and their positions are also defined by the locations of one of their corners. The regions are further subdivided into one or more geographic areas that are defined by their shapes and locations within the region. Inputs from the navigational system of the aircraft are used successively to determine whether the aircraft is in a particular latitude band, zone, region and area, and adjustments to the warning criteria are made to optimize the performance of the warning system for the area in which the aircraft is flying. A "snapshot" is made over known territory to verify the validity of the barometric altitude signal before any modification to the warning criteria is made.

Abstract translation: 地面接近警报系统利用地理位置数据来改变特定地理区域的地形特征所要求的警告标准。 为了确定飞机是否在特定地理区域内，世界被细分为纬度带，纬度带又被细分为非重叠区域，经过预定的经度线，每个区域的位置由纬度和纬度坐标定义 其中一个角落。 这些区域进一步由可能与其他区域重叠的区域限定。 这些地区的大小有限，他们的位置也由他们的一个角落的位置来定义。 这些区域进一步细分为一个或多个由它们在该区域内的形状和位置定义的地理区域。 连续使用飞机导航系统的输入来确定飞机是否处于特定的纬度带，区域，区域和区域，并且对警告标准进行调整，以优化其中的警告系统的性能 飞机正在飞行。 在已知区域之前进行“快照”，以在对警告标准进行任何修改之前验证气压高度信号的有效性。