Stratospheric airship flight performance parameter estimation method and system

A technology of stratospheric airship and flight performance, applied in the field of aviation measurement and control

Active Publication Date: 2016-06-29
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the stratosphere and above altitudes, there is no known method in the literature that can directly provide real-time horizontal wind speed and direction, airspeed, steady-state circling radius, circling period, circling angular rate, sideslip Angle and angle of attack information

Method used

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  • Stratospheric airship flight performance parameter estimation method and system
  • Stratospheric airship flight performance parameter estimation method and system
  • Stratospheric airship flight performance parameter estimation method and system

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Embodiment Construction

[0061] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0062] Such as figure 1 As shown, the present invention provides a method for estimating the flight performance parameters of a stratospheric airship,

[0063] Make the airship enter a stable circling flight state;

[0064] Obtain the ground speed, attitude information and position information of the airship;

[0065] According to the ground speed, attitude information and position information of the airship, the flight performance parameters of the airship are estimated.

[0066] Such as figure 2 As shown, which is better, making the airship enter the stable circling flight state includes: fixing the main propeller speed and yaw control amount of the airship, so that the airship enters the circling flight state; when the fluctuation value of the flying height of the airship is less than the preset value, That is to say, it is considered to enter a ...

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Abstract

The invention relates to a stratospheric airship flight performance parameter estimation method and system. The stratospheric airship flight performance parameter estimation method comprises the steps: enabling an airship in a steady circling flight state; acquiring ground velocity, attitude angle information and position information of the airship; estimating flight performance parameters of the airship according to the ground velocity, attitude angle information and position information of the airship. According to the stratospheric airship flight performance parameter estimation method and system, which are provided by the invention, the accurate flight performance parameters, such as horizontal wind velocity, wind direction, airspeed, steady circling radius, circling period, circling angular speed, sideslip angle, attack angle and the like, can be computed by utilizing the ground velocity, position information and attitude angle information given out by a navigation system of the airship under an upper thin atmosphere environment; furthermore, the process is simple and is easy to implement; as long as main propeller rotation speed and yaw controlled quantity are constant, the airship can start the circling flight state; due to the circling flight, the airship has a constant altitude, and the wind speed and the wind direction are also constant, so that the airship is located under a constant wind field, and airship flight performance parameter estimation errors are reduced.

Description

technical field [0001] The invention relates to the technical field of aviation measurement and control, in particular to a method and system for estimating flight performance parameters of a stratospheric airship. Background technique [0002] In recent years, driven by the needs of regional atmospheric environment monitoring, disaster prevention and mitigation, high-resolution real-time monitoring, early warning and missile defense, anti-terrorism, and regional communications, stratospheric airships have attracted widespread attention from all countries. The United States, Japan, Russia, and South Korea Major countries such as China, the European Union, and China have successively launched relevant research programs and started more in-depth research and development work. Some countries have already started to develop and test the prototype of the stratospheric airship. [0003] The flight test is an important basis for checking whether the flight performance indicators m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 周江华王帆苗景刚
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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