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Comments (6)

linfan68 avatar linfan68 commented on July 29, 2024

My results:
image
image

With this change:

bool ESKF::Init(const GPSData &curr_gps_data, const IMUData &curr_imu_data) {
    // init_velocity_ = curr_gps_data.true_velocity;
    init_velocity_ = Eigen::Vector3d(0, 0, 0);
////

from eskf-gps-imu-fusion.

zm0612 avatar zm0612 commented on July 29, 2024

如果初值的速度或者位置差的太远,会影响收敛的效果,你需要去根据实际情况进行调参。目前代码进行了更新,修复了一些bug,欢迎再次尝试

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JACKLiuDay avatar JACKLiuDay commented on July 29, 2024

如果初值的速度或者位置差的太远,会影响收敛的效果,你需要去根据实际情况进行调参。目前代码进行了更新,修复了一些bug,欢迎再次尝试

博主您好,如果我在实际应用中,gps无法获取到 true velocity,直接用imu的速度来作为初值可以吗

from eskf-gps-imu-fusion.

zm0612 avatar zm0612 commented on July 29, 2024

如果初值的速度或者位置差的太远,会影响收敛的效果,你需要去根据实际情况进行调参。目前代码进行了更新,修复了一些bug,欢迎再次尝试

博主您好,如果我在实际应用中,gps无法获取到 true velocity,直接用imu的速度来作为初值可以吗

你好,imu+gps的系统多数情况下是一个收敛的系统,即使你给的初速度与真实速度有差距,系统运行一段时间也是会收敛的,如果你没有真实速度,最简单的方法,你把两个时刻的gps位置相减,然后除以时间,得到的速度作为初速度即可。另外IMU是一个测加速度的传感器,它本身无法得到速度的。

from eskf-gps-imu-fusion.

JACKLiuDay avatar JACKLiuDay commented on July 29, 2024

如果初值的速度或者位置差的太远,会影响收敛的效果,你需要去根据实际情况进行调参。目前代码进行了更新,修复了一些bug,欢迎再次尝试

博主您好,如果我在实际应用中,gps无法获取到 true velocity,直接用imu的速度来作为初值可以吗

你好,imu+gps的系统多数情况下是一个收敛的系统,即使你给的初速度与真实速度有差距,系统运行一段时间也是会收敛的,如果你没有真实速度,最简单的方法,你把两个时刻的gps位置相减,然后除以时间,得到的速度作为初速度即可。另外IMU是一个测加速度的传感器,它本身无法得到速度的。

非常感谢您的回复,我会在自己的系统中尝试该方法

from eskf-gps-imu-fusion.

hjwang1 avatar hjwang1 commented on July 29, 2024

from eskf-gps-imu-fusion.

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