position error


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position error

[pə′zish·ən ‚er·ər]
(navigation)
The error of a position.
That error of an instrument reading due to location or orientation.

position error

position errorclick for a larger image
Position error due to incorrect static pressure being fed either due to eddies or addition of dynamic pressure into static line.
An error in pressure instruments caused by the difference between the actual static pressure and that obtained from the aircraft. It depends upon the location of the static port pickup points and the attitude of the aircraft. Also called pressure error or installation error.
References in periodicals archive ?
Position Error 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 [11].
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.
* 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.
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 as well.

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