Method for evaluating guidance precision of full-strapdown guided weapon
A guidance accuracy and weapon technology, applied in the field of guidance, can solve problems such as inability to identify high-order items, inability to distinguish aerodynamic deviation from thrust deviation, and insufficient adaptability of accuracy evaluation methods, so as to improve design work and improve accuracy evaluation The effect of enhancing accuracy and reliability
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[0104] 1. The analytical function of the error of the guidance tool and the speed deviation of the shutdown point;
[0105] The inertial navigation system is an autonomous navigation system that uses the angular velocity and acceleration information of the carrier motion measured by the sensor, and integrates the carrier navigation information based on the law of inertia. Due to factors such as inertial device errors and initial alignment errors, navigation errors accumulate over time, which will seriously affect the missile's hit accuracy. According to the differential equation of the speed deviation, the relationship between the speed deviation of the shutdown point and the error coefficient of the guidance tool is deduced.
[0106] acceleration apparent acceleration The relationship between is:
[0107]
[0108] The acceleration error equation of the measurement system is:
[0109]
[0110] in:
[0111] δg=g c -g.
[0112] use ε g Indicates the influence o...
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