Thomas

Last seen: 1 day ago | Active since 2024

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toStruct() function not yielding expected result
I am attempting to use the toStruct() method of objectTrack to convert an array of tracks into a structure. However, when I call...

1 day ago | 1 answer | 0

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answer

Question

Tracker implementation in Simulink
I have a Simulink model set up that includes a Tracking Scenario Reader block feeding into a JPDA tracker block. I can see that ...

2 days ago | 0 answers | 0

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answers

Question

Calling irSensor() outside of scenario
I am somewhat confused about the implementation of the irSensor system object. When it is integrated into a Tracking Scenario, i...

3 days ago | 1 answer | 0

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answer

Question

Dynamically starting model instances in Simulink
I have a top-level model which is intended to call a variable number of instances of a lower-level 6DOF block and run each insta...

11 days ago | 1 answer | 0

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Question

Spacecraft dynamics vs orbital propagator
I am running two different models with the same initial orbital state: one using the Spacecraft Dynamics block and one using the...

19 days ago | 0 answers | 0

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Question

ECEF 6DOF block - position calculation
Hi all, I am working with the ECEF 6DOF (Quaternion) block and am confused about the way in which it determines velocity/positi...

2 months ago | 1 answer | 0

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Question

Algorithm used in los2 function
I am using the los2() function to evaluate line-of-sight between two points. The function indicates that line-of-sight is lost w...

2 months ago | 0 answers | 0

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answers

Question

Simulink model output heavily dependent on relative tolerance
I have a relatively large Simulink model that I am validating using a data set. This model is using the ECEF 6DOF block with onl...

2 months ago | 1 answer | 0

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Question

ECEF 6DOF block - integrator initial conditions
The body rate integrator in the ECEF 6DOF block appears to generate nonzero outputs at the first timestep (t = 0) with initial c...

3 months ago | 1 answer | 0

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Question

Simulation output differs when optional modules are enabled
I am running a closed-loop Simulink model with several modules that can be activated or deactivated for a particular run. These ...

4 months ago | 1 answer | 0

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Question

ECEF 6DOF block - Abb output
In the ECEF 6DOF (Quaternion) block from Aerospace Blockset, there is an output labeled as "Abb - Accelerations in body-fixed ax...

4 months ago | 1 answer | 1

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Question

Block output differs for different instances with same parameters
I have developed a custom library block that is being used in several subsystems within a model. However, the different instance...

4 months ago | 1 answer | 0

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Question

Discrepancy between flatearth2lla and ned2lla outputs
I am currently running a model that uses a flat earth coordinate system as the primary reference frame but requires information ...

6 months ago | 0 answers | 0

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Question

Time-varying parameters in Simulink model
I am implementing a Simulink model in which I would like to use time-varying parameters for certain blocks. I have tried using a...

9 months ago | 1 answer | 0

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Question

Step input to 6DOF impacts performance
I am currently using a 6DOF block with the moment input being a sum of two signals. When one of these signals is a step input (i...

11 months ago | 1 answer | 0

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Question

Aerodynamic forces and moments
In the "Aerodynamic Forces and Moments" block, are the x/y/z forces assumed to act at the CG (such that the resulting moment fro...

11 months ago | 1 answer | 0

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Question

Improving runtime of Simulink model
Hello, I am working with a Simulink model that contains several MATLAB Function blocks and a 6-DOF block. The runtime for the...

11 months ago | 1 answer | 0

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