# Questions tagged [noise]

Unwanted or modified signals detracting from some form of reception or perception.

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### How are units of noise measurement related to units of a sensor's data measurement?

I'm trying to understand how noise is represented for accelerometers, gyroscopes, and magnetometers so that I can match the requirements of my project with the standard specs of these sensors. I ...
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### Kalman Filter and the state noise vector?

I'm reading Probabilistic Robotics by Thrun. In the Kalman filter section, they state that $$x_{t} =A_{t}x_{t-1} + B_{t}u_{t} + \epsilon_{t}$$ where $\epsilon_{t}$ is the state noise vector. And ...
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### Velocity Model Motion in Matlab (Probabilistic Robotics)

I want to implement the velocity motion model in Matlab. According to Probabilistic Robotics page 124, the model is as following \begin{align*} \hat{v} &= v + sample(\alpha_{1} v^{2} + \...
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### Wheel odometry simulation using ground truth

I'm tracking the state of a robot $X=(x,y,\theta)$ where $x$ and $y$ are the ground coordinates and $\theta$ the heading angle. I have the ground truth states $X_{gt}=(x_{gt},y_{gt},\theta_{gt})$. I ...
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