Stratospheric airship flight performance parameter estimation method and system

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...

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

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