Adjust gravity, g, in imuSensor object accelerometer
显示 更早的评论
The imuSensor accelerometer uses a gravity acceleration of 9.81 [m/s^2], but the local gravity in my area is 9.7922 [m/s^2], and I would like to change the value that the imuSensor accelerometer uses for simulation of the accelerometer data to compare with an actual accelerometer. How can this be done?
Thanks
For background information, the gravity at your location can be calculated using the WGS-84 gravity model:
% from https://en.wikipedia.org/wiki/Theoretical_gravity, based on the
% WGS84 ellipsoid, the WGS (World Geodetic System) 1984 Ellipsoidal
% Gravity formula
theta = your latitude in radians
g_theta = 9.7803253359 * ((1 + 0.00193185265241 * sin(theta)^2)/ ...
(sqrt(1 - 0.00669437999013 * sin(theta)^2 )));
采纳的回答
Ryan Salvo
2021-4-27
0 个投票
Hi Gregory,
Unfortunately, it is not currently possible to change the gravity acceleration in imuSensor. I've created an enhancement request for a future release.
Thanks,
Ryan
2 个评论
John Tamkin
2022-6-5
Any updates on this? Running into the same issue
The better solution, IMO, is to not have imuSensor deal with gravity at all. The input to imuSensor should be specific force, which the user can compute based on whatever gravity model the user is using. Link to further discusson on this issue and others with imuSensor
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Sensor Models 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
