Table of Contents

Class AttitudeTrackingErrorSoftware

Namespace
NominalSystems.Classes
Assembly
NominalSystems.Classes.dll

This module is intended to be the last module in the guidance module chain. It’s input is the reference orientation message generated by a prior module, and the body orientation. It’s output is a guidance attitude to align the body frame with the reference. This module allows for a corrected reference frame, or a equivalent corrected reference frame to account for a corrected body frame. In the output AttGuidMessage, the B frame is the (uncorrected) body frame, the R frame is the corrected reference frame (if applicable). See AttitudeReferenceCorrectionSoftware for details.

public class AttitudeTrackingErrorSoftware : Software
Inheritance
AttitudeTrackingErrorSoftware
Inherited Members

Constructors

AttitudeTrackingErrorSoftware()

Default constructor for the software

public AttitudeTrackingErrorSoftware()

Fields

In_AttRefMsg

[AttRefFswMsg] Attitude reference message describing the target reference frame

public AttRefMessage In_AttRefMsg

Field Value

AttRefMessage

In_NavAttMsg

[NavAttIntMsg] Navigation message describing the actual or estimated state of the body

public NavAttMessage In_NavAttMsg

Field Value

NavAttMessage

Out_AttGuidMsg

[AttGuidFswMsg] Output attitude guidance message

public AttGuidMessage Out_AttGuidMsg

Field Value

AttGuidMessage

Sigma_RcR

[MRP] Fixed frame rotation to the corrected reference frame Rc from the reference frame R

public Vector3 Sigma_RcR

Field Value

Vector3

Properties

Sigma_BcB

[MRP] Frame rotation to the corrected body frame Bc from body frame B This is the inverse of MRP sigma_RcR going to the corrected reference frame Rc from reference frame R

public Vector3 Sigma_BcB { get; set; }

Property Value

Vector3

Methods

OnBegin(double)

Called when the 'Component' is beginning

protected override void OnBegin(double time)

Parameters

time double

current time (seconds)

OnUpdate(double, double)

Called when the 'Component' should update

protected override void OnUpdate(double time, double step)

Parameters

time double

current time (seconds)

step double

the time step (seconds)