Description / Abstract:
Introduction
CLARA identifies four functions: Data Space Generator, Truth
Data Generator, Coefficient Generator, and Reconstructor. Together
these four functions standardize the solution to the LAR problem.
This ICD defines the logical interfaces of the four functions.
Purpose
This document specifies the CLARA interfaces of the Data Space
Generator, Truth Data Generator, Coefficient Generator, and
Reconstructor functions as shown in Figure 1. The weapon and
delivery platform developers define the details of each
function.
The Data Space Generator selects a representative set of
discrete release conditions, (such as altitude, wind, speed, and
release flight path angle) from a continuum of release-condition
possibilities. For each set of release conditions, the Data Space
Generator defines a corresponding grid of target points. The subset
from the multi-dimensional space of discrete release conditions,
along with their corresponding grid of target points, wind
constraints, and impact angle constraints, and impact angle
constraints serve as the input to the Truth Data Generator. The
Truth Data Generator uses the Data Generator output to calculate
the achieved impact parameters (velocity, angles, and miss
distance). The Truth Database stores the release conditions and the
achieved impact parameters for each target point.
The Truth Data Generator generates impact data sets for the
Coefficient Generator. The Truth Data Generator uses a model of the
weapon system that predicts weapon delivery performance to a
predefined accuracy. The weapon model may use
Six-Degrees-Of-Freedom (6DOF) or another mathematical
representation that meets the objective for the weapon system
LAR.
The Coefficient Generator generates coefficients for a
mathematical fitting model. This mathematical fitting model is
commonly referred to as the LAR Algorithm.
The output of the Reconstructor is an approximation of the
original weapon footprint data based on flight and environment
conditions. The Mission Planning, Trainer Systems, and weapon
delivery aircraft use this approximation.