We’re rewarding the question askers & reputations are being recalculated! Read more.

Questions tagged [sensor-error]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1
vote
1answer
10 views

Are Indirekt KFs with non-linear changing statematrix EKFs for the error state?

I'm trying to implement an indirect kalman filter to estimate the pose of a differential drive robot using gyroscope and wheel encoder data. I found a fiew papers (1 - 3) describing this approach but ...
0
votes
0answers
12 views

Error Distribution of Ultrasonic Distance Sensor

I am currently analysing the accuracy of an ultrasonic distance sensor: HY-SRF05 Using this sensor, I have measured the distance towards an obstacle at 5cm 10cm 15cm 20cm 25cm , where the ...
5
votes
2answers
3k views

Wheel Odometry Covariance Matrix for Custom Robot

I have been looking around in the forums, but could not find any answer for how to go about getting the wheel odometry covariance matrix for a custom built planar robot (I found some posts related to ...
0
votes
2answers
108 views

Is there any error analysis of Irobot Create 2?

I am curious about the travelling distance/turning angle accuracy of Irobot Create 2. E.g., if the program let Create 2 go forward for 10 m, will Create 2 go forward exactly 10 m? What is the ...
1
vote
2answers
492 views

Is there a portable and accurate sensor to measure the position of the hand relative to the body?

My team has been working on a wearable glove to capture data about hand movements, and use it as a human-computer interface for a variety of applications. One of the major applications is the ...
4
votes
3answers
122 views

Controlling a system with delayed measurements

Assume I have a rather simple system I want to control, but all sensor measurements exhibit considerable time delay, i.e.: $z_t = h(x_{(t-d)}) \neq h(x_t)$ With my limited knowledge about control, ...
1
vote
2answers
153 views

problem with simulated sensor in Matlab?

I'm simulating a sensor in 3D. The sensor should determine ($p, \theta, \phi$) from the origin where $\theta$ is the rotation about z-axis and $\phi$ is the rotation about x-axis. The sensor is given ...
10
votes
3answers
3k views

How to deal with sonar crosstalk

Our robot has a circular array of 12 sonar sensors that looks like this: The sonar sensors themselves are pretty good. We use a low-pass filter to deal with noise, and the readings seem pretty ...