Modified trajectory tracking guidance for artillery rocket

Abstract

This paper contributes to a modified guidance scheme based on a trajectory tracking method which is dedicated for an artillery rocket with a finite set of single use solid propellant side thrusters. Frequency modulation of pulses was used to achieve effective firing logic. The proposed control law is applicable in the last phase of flight when the rocket reaches the vertex of the trajectory. A correction engine activation sequence was chosen in such a way that possibility of rocket axial unbalance is minimized due to motors firing. Numerical simulation results indicate that significant dispersion reduction was achieved and the number of activated side rocket thrusters is minimized.

Study of Model Uncertainties Influence on the Impact Point Dispersion for a Gasodynamicaly Controlled Projectile

“…The guidance algorithm used in the MCCA is based on the reference trajectory tracking. This algorithm is discussed in detail in [33]. The main idea behind MCCA is to use the reference trajectory to minimize the hitting error just and the end of flight.…”

Impact Point Dispersion Prediction for 300 mm R-Han 300 Artillery Rocket

“…It is a measure of deviation of the trajectory from its nominal value (Luo 2015). Due to its dispersion, the unguided artillery rocket is used as an area target weapon (Ozog, Jacewicz, and Glebocki 2020). The prediction of its impact point dispersion is needed to determine its effectiveness (Katsev 2018).…”

“…Monte Carlo simulation has been used in various analysis of rocket flight performance. Monte Carlo was used to predict impact point for guided artillery rocket (Ozog et al 2020), (Raza and Wang 2022), and (Wiputgasemsuk 2021). The dispersion of unguided and guided rocket at launch angles from 30 to 50 degrees was studied (Glebocki and Jacewicz 2020).…”