Aviation altimeter application efficiency detection method based on dynamic continuous detection

Abstract

The invention discloses an aviation altimeter application efficiency detection method based on dynamic continuous detection, belongs to the technical field of aviation equipment application efficiency detection, and specifically comprises the following steps: connecting a radio frequency cable with a radio frequency output port of an aviation altimeter, and obtaining a transmission pulse envelope signal through envelope detection; the transmitting pulse envelope signal is subjected to height factor adjustment to form a receiving pulse envelope signal, and the receiving pulse envelope signal is output to a radio frequency input port of the aviation altimeter through a radio frequency cable after being subjected to carrier modulation, up-conversion and power amplification; a data bus is connected with a data port of the aviation altimeter, a height measurement value of the aviation altimeter is extracted, and height measurement error data is obtained; and determining an application efficiency state value of the aviation altimeter according to a maximum membership principle by constructing a height measurement error matrix. According to the scheme, dynamic continuous detection can be implemented, the actual application capability of the aviation altimeter can be detected under the condition that factors such as terrain and interference are comprehensively considered, and the credibility of a detection result is improved.

Description

technical field [0001] The invention relates to an application efficiency detection method of aviation equipment, in particular to an application efficiency detection method of aviation altimeter equipment based on dynamic continuous detection. Background technology [0002] Aviation altimeter is a radio equipment used to measure the altitude of aviation platform. The measured altitude information is not only used to indicate the altitude of aviation platform, but also used for radio navigation and positioning, parameter binding of fire control system, etc. Therefore, whether the altimeter can provide accurate altimetry data is very important for the aviation platform. [0003] Because the ground static detection method can not meet the needs of altimeter height measurement range and height measurement accuracy, the dynamic detection is mainly used for the detection of aviation altimeter. There are two main methods. First, flight measurement is carried out, but this method has hi...

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Problems solved by technology

This method is likely to cause large fluctuations in altimeter data, low accuracy and high precision, and it is impossible to implement dynamic continuous detection, and can only be used for functional qualitative detection;

[0005] Second, in the existing detection methods, when the analog altimeter receives the pulse signal, it is the echo signal under the simulated ideal channel condition, and does not consider the irregular reflection, absorption, multipath and other factors of the pulse signal caused by different terrain conditions. The impact from the above is not consistent with the actual use scene of the aviation platform altimeter, and the reliability of the test results is low;

[0006] Third, in the existing detection method, when the analog altimeter receives the pulse signal, the influence of complex electromagnetic environment factors on the altimeter is not considered, so the anti-interference ability of the altimeter pulse signal in the transmission process cannot be detected, which is different from that of the aviation platform altimeter. The actual application scenario does not match, and the actual application performance of the aviation altimeter cannot be tested;

[0007] Fourth, in the existing detection methods, most of the detection results use the method of visually observing the altimeter instrument panel to subjectively judge the working status and performance of the height. Only functional detection can be carried out, and quantitative index detection cannot be carried out, let alone comprehensive terrain conditions. , Use the influence of the environment and other factors to test the actual use ability of the altimeter

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