Using GPS for Attitude Determination

Ryzhkov, L. М.

doi:10.1109/apuavd47061.2019.8943934

Cited by 1 publication

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to its higher accuracy and precision compared to code observations, carrier phase observations have been used to achieve very high accuracy of estimated position. It provides relative positioning in centimeter level and has been widely applied to surveying, precision approach and automatic landing, and attitude determination [6][7][8][9][10]. Although carrier phase observable can be very accurately measured, it is not possible to use pure carrier phase observable for absolute positioning due to inherent integer cycle ambiguity [9,10].…”

Section: Introductionmentioning

confidence: 99%

Estimator-Based GPS Attitude and Angular Velocity Determination

Jwo¹

2022

Computers, Materials &Amp; Continua

View full text Add to dashboard Cite

In this paper, the estimator-based Global Positioning System (GPS) attitude and angular velocity determination is presented. Outputs of the attitude estimator include the attitude angles and attitude rates or body angular velocities, depending on the design of estimator. Traditionally as a position, velocity and time sensor, the GPS also offers a free attitude-determination interferometer. GPS research and applications to the field of attitude determination using carrier phase or Doppler measurement has been extensively conducted. The raw attitude solution using the interferometry technique based on the least-squares approach is inherently noisy. The estimator such as the Kalman filter (KF) or extended Kalman filter (EKF) can be incorporated into the GPS interferometer, potentially providing several advantages, such as accuracy improvement, reliability enhancement, and real-time characteristics. Three estimator-based approaches are investigated for performance comparison, including (1) KF with measurement involving attitude angles only; (2) EKF with measurements based on attitude angles only; (3) EKF with measurements involving both attitude angles and body angular rates. The assistance from body mounted gyroscopes, if available, can be utilized as the measurements for further performance improvement, especially useful for the case of signal-challenged environment, such as the GPS outages. Modeling of the dynamic process involving the body angular rates and derivation of the related algorithm will be presented. Simulation results for various estimator-based approaches are conducted; performance comparison is presented for the case of GPS outages.

show abstract

Section: Introductionmentioning

confidence: 99%

Estimator-Based GPS Attitude and Angular Velocity Determination

Jwo¹

2022

Computers, Materials &Amp; Continua

View full text Add to dashboard Cite

show abstract

Using GPS for Attitude Determination

Cited by 1 publication

References 2 publications

Estimator-Based GPS Attitude and Angular Velocity Determination

Estimator-Based GPS Attitude and Angular Velocity Determination

Contact Info

Product

Resources

About