Analysis for Dead Reckoning Algorithm Based on SINS/OD
Turntable errors, including position error
, wobble error, orthogonality error, and intersection error, will inevitably affect the GyroWheel system in calibration tests .
Lowest Bound on [beta] with Microphone Position Errors
. Denote the position error
of the mth microphone as [DELTA][r.sub.m]; that is, the actual position of the mth microphone is given by
(iv) In the process of broken line motion trajectory tracking, position error
is [P.sub.error2] = (-0.191 m ~ 0.183 m), the average residual rate is 8.9%, and confidence coefficient is 91.1%, as shown in Figure 27.
We denote the declared position of anchor node Na as [X'.sub.a] = [[[x'.sub.a], [y'.sub.a], [z'.sub.a]].sup.T] and describe the position error
vector [V.sub.a] = [[[v.sub.ax], [v.sub.ay], [v.sub.az]].sup.T] with standard multivariate Gaussian distribution.
As one can see, up to 200 ms (0, red line) oculomotor system is predicting trajectory of the occluded target; therefore a position error
does not increase.
Integration of noise results in bias, and the integration of bias results in a large linear position error
. To further complicate matters, linear accelerometers also measure gravity, and any error in angular position couples into the accurate removal of gravity and the linear position error
3, every different type of lines presents the values of position error
for the three joints.
* Servo loop compensation using a full 32-bit position error
, PID with velocity and acceleration feedforward, integration limit, and dual bi-quad filters.
This leads to significant position error
signal, or PES.
(4) The errors at the 12-h forecast point would be due to a combination of the initial position error
along with the first usable prediction errors.
A simple static acceleration error, known as an acceleration bias, will integrate to a linear velocity error, and a quadratic position error
. Bias is just one of many types of sensor error, and the analysis quickly gets considerably more complex with gyro rotation errors coupling to position errors