Variable-coefficient proportional guidance parameter design method

Abstract

The invention discloses a variable-coefficient proportional guidance parameter design method. The method comprises the following steps: 1, establishing a mathematical relationship between a proportional guidance head and a guidance head sight angle; 2, solving a corresponding relation between the proportional guidance coefficient k and the seeker output angle through mathematical relation derivation; 3, performing simulation calculation on the variable proportion guidance coefficient k through mathematical simulation, and verifying the effectiveness of the method through comparison of simulation data before and after the algorithm, thereby laying a theoretical foundation for subsequent engineering practice; the problem of fixed coefficient proportional guidance can be well solved through variable coefficient proportional guidance, and accurate hit of the strapdown laser seeker to a moving target is achieved by fully utilizing a seeker linear area and missile flight overload.

Description

technical field [0001] The invention belongs to the technical field of missile flight control, and in particular relates to a design method of variable coefficient proportional guidance parameters. Background technique [0002] In the traditional proportional guidance algorithm, the fixed proportional coefficient is mainly used. For the fixed target, the fixed proportional coefficient is simple and efficient in engineering practice, but for the moving target, the fixed proportional coefficient is not enough for the overload of the missile during the actual flight. Sufficiently, especially for laser-guided missiles with a strapdown system, an excessively high scale factor will often make the seeker target at the edge of the linear region during flight. In actual flight, if noise has a great impact on control redundancy, the scale factor Small will cause the end target to quickly go out of view and miss the target. Contents of the invention [0003] In order to overcome the...

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Problems solved by technology

[0002] In the traditional proportional guidance algorithm, the fixed proportional coefficient is mainly used. For the fixed target, the fixed proportional coefficient is simple and efficient in engineering practice, but for the moving target, the fixed proportional coefficient is not enough for the overload of the missile during the actual flight. Sufficiently, especially for laser-guided missiles with a strapdown system, an excessively high scale factor will often make the seeker target at the edge of the linear region during flight. In actual flight, if noise has a great impact on control redundancy, the scale factor Small will cause the end target to quickly go out of the field of view and cannot hit the target

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