Simulation method for optical scene containing target and fixed star interferent

Abstract

The invention discloses a simulation method for an optical scene containing target and fixed star interferents. The simulation method comprises the steps of: constructing a simulation system for the optical scene containing the target and fixed star interferents; determining layout of the simulation system for the optical scene containing the target and fixed star interferents; establishing an optical characteristic model and a simulation control model of a target; establishing a static-state fixed star scene physical effect model; and dynamically synthesizing a target scene and a fixed star scene. Aiming at the technical problem that a complex scene containing target and fixed star interference simulated by adopting an existing optical imaging simulation method is non-equivalent to an actual scene, the synthetic projection type optical imaging semi-physical simulation method is provided, effectively solves the problem of simulating the target and the environment with fixed star interference, and provides a new technological approach for optical target and environment simulation.

Description

technical field [0001] The invention relates to a method for simulating an optical target and an environment, more particularly, to a method for simulating an optical target and an environment scene containing targets and stellar disturbances. Background technique [0002] The target and environment optical scene simulation is an important part of the optical guidance control hardware-in-the-loop simulation test. Its main function is to simulate the "target and interference" scene seen in the field of view of the optical detection equipment during the flight of the aircraft, and the optical target environment scene simulation It is necessary to express the optical characteristics of the target, the optical characteristics of the interfering object and the dynamic characteristics relative to the target, and the line-of-sight angle movement characteristics of the target relative to the aircraft. [0003] The existing optical and environmental scene simulation methods are joint...

AI Technical Summary

Problems solved by technology

As a disturbance object, the star is different from the ordinary disturbance object in the existing simulation scene. If the above-mentioned existing method is used, the image simulation computer needs to compensate the angular displacement of the star in the inertial coordinate system in real time, so as to strictly maintain the star relative to the inertial coordinate system. The characteristics of space immobility, and due to the frame delay of the image simulation computer, the slow compensation of this image-based relative motion and the asynchronous nature of the fast two-dimensional line-of-sight angle movement equipment make the target with a star environment simulate the environment scene Seriously not equivalent to the actual scene

[0006] Therefore, it is necessary to propose an optical scene simulation method containing targets and stellar disturbances, so as to solve the problem of optical target and environmental scene simulation that the existing simulation methods cannot meet the "targets and stellar disturbances".

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