Overlarge terrain proximity rate alarm false alarm suppression method of ground proximity alarm system

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Overlarge terrain proximity rate alarm false alarm suppression method of ground proximity alarm system

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ZANG SHIXIN / HUANG MENGMENG / SUN HUIJUAN

The invention provides an overlarge terrain proximity rate alarm false alarm suppression method for a ground proximity alarm system, and the method comprises the following steps: 1, obtaining multi-source avionics data, and calculating a terrain proximity rate TCR0 based on radio height; 2, selecting a corresponding alarm envelope according to the state of the flap, and judging whether the TCR0 enters an alarm envelope range or not; step 3, when the TCR0 enters the alarm envelope range, calculating a terrain proximity rate TCR1 based on a terrain database; when the TCR0 does not enter the alarm envelope range, the first step is executed repeatedly; 4, the absolute value of the difference between TCR0 and TCR1 is calculated, and when the absolute value is smaller than or equal to the tolerance value, an alarm is given out; when the absolute value is greater than the tolerance value, calculating a fused terrain proximity rate TCRmix of the TCR0 and the TCR1; step 5, when the TCRmix enters the alarm envelope range, giving an alarm; and when the TCRmix does not enter the alarm envelope range, executing the step 1.

本发明提供了一种近地告警系统过大地形接近率告警虚警抑制方法，包括以下步骤：步骤一、获取多源航电数据，计算基于无线电高的地形接近率TCR0；步骤二、根据襟翼状态，选取相应的告警包络，并判断TCR0是否进入到告警包络范围；步骤三、当TCR0进入到告警包络范围，计算基于地形数据库的地形接近率TCR1；当TCR0未进入告警包络范围，重复执行步骤一；步骤四、计算TCR0与TCR1之差的绝对值，当绝对值小于等于容差值时，则发出告警；当绝对值大于容差值时，则计算TCR0与TCR1的融合地形接近率TCRmix；步骤五、当TCRmix进入告警包络范围，则发出告警；当TCRmix未进入告警包络范围，则执行步骤一。

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Document information

Title :

Overlarge terrain proximity rate alarm false alarm suppression method of ground proximity alarm system

Additional title:

近地告警系统过大地形接近率告警虚警抑制方法

Contributors:

ZANG SHIXIN (author) / HUANG MENGMENG (author) / SUN HUIJUAN (author)

Publication date :

2023-03-03

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Chinese

Classification :

IPC:

G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / G01S RADIO DIRECTION-FINDING , Funkpeilung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS