Invalid dimension specified for input port.

2026 1 7
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更新时间：2026 1 8
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I am attempting to extend one of the example 2D Kalman filter Simulink models to 3D, but am receiving the following error:
Invalid dimension specified for input port.
Please advise.

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回答（1 个）

Fangjun Jiang
Fangjun Jiang 2026-1-7
编辑：Fangjun Jiang 2026-1-7

0 个投票

Change the gain parameter of the feedback Gain block. Make it 3 values or 1 value.

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Jehan Jayanetti
Jehan Jayanetti 2026-1-7
Thank you for this answer. I increased the Gain block to 3 values. PSA new error related to the XY velocity block.
Fangjun Jiang
Fangjun Jiang 2026-1-7
Different model, different cause.
In this model, every where it is expecting the size of 2 (x y acceleration, velocity, position). What is the point of changing one of the input port to be size of 3 ???
Jehan Jayanetti
Jehan Jayanetti 2026-1-8
编辑：Jehan Jayanetti 2026-1-8
Thank you for this answer. I have made a modification to the XY acceleration model to accept 3 inputs and thus widen the bus length to 3. PSA a screenshot of a new error resulting from the modification.

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