Questions tagged [kalman-filter]
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Estimation of signal from noisy data
I am designing a PID controller for my beam steering application. I have lateral position sensor detector (PSD) PSD LINK to detect the position of beam. The problem is that the output of sensor seems ...
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1answer
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Can the Kalman gain matrix contain negative values or absolute values greater than 1?
I have implemented an EKF in a power systems application. When I run a simulation in Matlab, in some iterations of the filter I get a Kalman gain matrix (K) with negative values and/or absolute values ...
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How to it is only use of kalman filter with accelerometer and magnetometer ?(LSM303C)
I have LSM303C acc and mag sensor. But my sensor is drifting. i want use kalman filter,but it usually use kalman filter with gyroscope and acc meter.
İs it possible to make with acc and mag ?
this ...
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Battery State of Charge Estimation: EKF vs KF
In the State of Charge (SOC) estimation, why does it usually uses Extended Kalman Filter (EKF) rather than the standard Kalman Filter (KF)? I've read several journals reasons-out that the OCV-SOC ...
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Measuring pitch under dynamic acceleration: better to use 6DOF sensor or 9DOF?
I am working on a project that is challenging me. I've researched on the subject as best I can, but would like additional opinions.
I have a 4' long aluminum c-channel (essentially, a metal rod) with ...
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State of charge estimation
Which is a more accurate estimation of SOC between different versions of Kalman filter vs advanced Fuel gauge ICs such as the ones from Texas Instruments (Impedance Track algorithm) or Maxim ...
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1answer
370 views
How to use output of Indirect Kalman Filter(=error state kalman filter)
I would like to measure true degree from IMU sensor by using indirect kalman filter(IKF).
I can calculate error of angle and error of the bias of gyro from indirect kalman filter as attached image.
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2answers
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Is there a better filter or a modification to the Kalman filter that could take advantage of having all the data during the trajectory at once?
I am trying to reconstruct the trajectory of an object with an strapped down IMU on board to do dead reckoning. A Kalman filter seems to be in order. But the Kalman filter seems to be oriented toward ...
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Should I be using a Standard Kalman Filter (KF) or an Extended Kalman Filter (EKF)?
So I am trying to implement a Kalman filter for an Inertial Measurement Unit (IMU) using an Arduino.
I have 4 sensors:
GPS
Accelerometer
Gyroscope
Magnetometer
To measure various vehicle properties ...
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1answer
137 views
Kalman filter in GPS watches [closed]
I have a simple question that I don't seem to find anywhere, do typical GPS watches only use GPS data or do they also use other sensores and fuse the information with a Kalman filter?
What is usually ...
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0answers
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Identifying the parameters of a linear state-space-model using Kalman Filter
I have a linear state space model (SSM) that looks like this
\begin{align}
{\dot {x}} & = {\rm \textbf{A}}{x} + {\rm \textbf{B}}{u} \\
{y} & = {\...
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1answer
838 views
Calibration of magnetometer for precise yaw
I'm using Sparkfun Razor IMU 9DOF sensor which incorporates accelerometer, gyroscope, and magnetometer, for giving the Euler's angles (yaw, pitch, and roll). I'm using the firmware at this link. It ...
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1answer
231 views
Can Kalman filter be used to increase sampling rate of a real-time information?
In my application, I am attempting to control the contact force of an end effector. I am getting very poor performance for two primary reasons: the feedback signal has 1) internal delay and it is ...
