Abstract: Methods and a system for simulating a weapon system are provided. The weapon system may be modeled using a detailed-error-source description (DESD), with an error term for each error source in the weapon system. A target for the weapon system may be determined. For each simulated shot, each error term in the DESD may be perturbed using a Monte Carlo technique and an impact location of the simulated shot determined. The perturbation of each error term, additional system parameters, and the impact location of each simulated shot may be stored in a system-state data structure. A performance result of the weapon system may be determined. After firing all simulated shots, analysis of the system-state data structure may be performed. Performance results and/or an error-weighting function of the weapon system may be determined based on the analysis.

Abstract: A boresight apparatus and methods for use of same with a gun system are provided. The gun system includes a gun tube and a pointing device. The boresight apparatus is installed on an outside surface of the gun tube. Once the gun tube is adjusted to a desired gun-tube orientation, the boresight apparatus determines the gun-tube orientation, including an azimuth, an elevation, and a roll of the gun tube. The pointing device determines a pointing-device orientation at the desired angle. The gun system may be boresighted by adjusting the pointing device based on the gun-tube orientation. The pointing accuracy performance of the gun system may be determined based on offsets between the gun-tube orientation and the pointing-device orientation. The boresight may determine an azimuth using optical technologies, such as lasers, with a precision survey or using north-finding techniques with gyroscopes.

Abstract: A boresight apparatus and methods for use of same with a gun system are provided. The gun system includes a gun tube and a pointing device. The boresight apparatus is installed on an outside surface of the gun tube. Once the gun tube is adjusted to a desired gun-tube orientation, the boresight apparatus determines the gun-tube orientation, including an azimuth, an elevation, and a roll of the gun tube. The pointing device determines a pointing-device orientation at the desired angle. The gun system may be boresighted by adjusting the pointing device based on the gun-tube orientation. The pointing accuracy performance of the gun system may be determined based on offsets between the gun-tube orientation and the pointing-device orientation. The boresight may determine an azimuth using optical technologies, such as lasers, with a precision survey or using north-finding techniques with gyroscopes.

Abstract: Methods and a system for simulating a weapon system are provided. The weapon system may be modeled using a detailed-error-source description (DESD), with an error term for each error source in the weapon system. A target for the weapon system may be determined. For each simulated shot, each error term in the DESD may be perturbed using a Monte Carlo technique and an impact location of the simulated shot determined. The perturbation of each error term, additional system parameters, and the impact location of each simulated shot may be stored in a system-state data structure. A performance result of the weapon system may be determined. After firing all simulated shots, analysis of the system-state data structure may be performed. Performance results and/or an error-weighting function of the weapon system may be determined based on the analysis.

Abstract: A method and a system for measuring the velocity of a projectile. The method and system employ sensors that uses magnetoresistive sensing elements to measure the velocity of a projectile. Two magnetoresistive based sensors may be used to sense a time at which a projectile crosses a sense path associated with each of the sensors. Because the sensors employ magnetoresistive sensing elements, high quality voltage signals are produced, allowing accurate time measurements to be calculated. Accordingly, the velocity of the projectile can be determined by using these time measurements along with a measured spacing distance between the sensors.

Abstract: A method and a system for measuring the velocity of a projectile. The method and system employ sensors that uses magnetoresistive sensing elements to measure the velocity of a projectile. Two magnetoresistive based sensors may be used to sense a time at which a projectile crosses a sense path associated with each of the sensors. Because the sensors employ magnetoresistive sensing elements, high quality voltage signals are produced, allowing accurate time measurements to be calculated. Accordingly, the velocity of the projectile can be determined by using these time measurements along with a measured spacing distance between the sensors.