US12595986 - Correcting targeting of indirect fire

The patent describes a computing system that improves the accuracy of indirect fire targeting by calculating a correction vector based on various firing conditions and statistical parameters. It involves acquiring data on registration and fire-for-effect targets, estimating errors, and using a covariance matrix to generate a conditional correction matrix for precise targeting adjustments.

Claim 1

1 . A computing system for correcting targeting of indirect fire, comprising at least one processor and memory storage communicatively coupled to the processor and storing computer-readable instructions that when executed perform: 1) acquiring location coordinates of a gun to be fired for registration, of a registration target, and of a fire-for-effect (FFE) target; 2) acquiring values for a set of firing conditions, including gun or environmental conditions, for both registration and FFE firing, wherein the set of firing conditions includes one or more of projectile mass, ballistic drag and lift coefficients, muzzle velocity, barrel wear, propellant temperature, elevation jump, azimuth jump, wind velocity, air pressure, and air temperature; 3) estimating a unit effect of a firing condition error, for each of the firing conditions of the set, and determining correlation terms of an error covariance matrix W, wherein the correlation terms indicate correlations between errors both of registration firing conditions and of FFE firing conditions, and wherein at least one correlation term is less than one and greater than zero; 4) acquiring a registration miss vector (v, w) as a result of registration firing, wherein elevation and azimuth parameters for the registration firing are calculated by a ballistic simulation engine (BSE); 5) generating from the correlation terms of the error covariance matrix W and the unit effects, a) an effects covariance matrix Σ 12 of effect correlations between errors of conditions during registration fire and errors of conditions during FFE, and b) an effects covariance matrix Σ 22 of correlations between errors of conditions during FFE, and responsively calculating a conditional correction matrix, Σ 12 Σ 22 −1 ; and 6) multiplying the conditional correction matrix Σ 12 Σ 22 −1 by the registration miss vector (v, w) to calculate an FFE correction vector for FFE firing. 1) acquiring location coordinates of a gun to be fired for registration, of a registration target, and of a fire-for-effect (FFE) target; 2) acquiring values for a set of firing conditions, including gun or environmental conditions, for both registration and FFE firing, wherein the set of firing conditions includes one or more of projectile mass, ballistic drag and lift coefficients, muzzle velocity, barrel wear, propellant temperature, elevation jump, azimuth jump, wind velocity, air pressure, and air temperature; 3) estimating a unit effect of a firing condition error, for each of the firing conditions of the set, and determining correlation terms of an error covariance matrix W, wherein the correlation terms indicate correlations between errors both of registration firing conditions and of FFE firing conditions, and wherein at least one correlation term is less than one and greater than zero; 4) acquiring a registration miss vector (v, w) as a result of registration firing, wherein elevation and azimuth parameters for the registration firing are calculated by a ballistic simulation engine (BSE); 5) generating from the correlation terms of the error covariance matrix W and the unit effects, a) an effects covariance matrix Σ 12 of effect correlations between errors of conditions during registration fire and errors of conditions during FFE, and b) an effects covariance matrix Σ 22 of correlations between errors of conditions during FFE, and responsively calculating a conditional correction matrix, Σ 12 Σ 22 −1 ; and 6) multiplying the conditional correction matrix Σ 12 Σ 22 −1 by the registration miss vector (v, w) to calculate an FFE correction vector for FFE firing.

Google Patents

https://patents.google.com/patent/US12595986

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12595986