Sökning: "Maximum Likelihood Estimator MLE"
Hittade 5 uppsatser innehållade orden Maximum Likelihood Estimator MLE.
1. Estimation of satellite orbits using ground based radar concept
Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysikSammanfattning : Today an abundance of objects are circulating in earth captured orbit. Monitoring these objects is of national security interest. One way to map any object in orbit is with their Keplerian elements. A method for estimating the Keplerian elements of a satellite orbit simulating a ground based radar station has been investigated. LÄS MER
2. A Comparison of Three Methods of Estimation Applied to Contaminated Circular Data
Magister-uppsats, Umeå universitet/StatistikSammanfattning : This study compares the performance of the Maximum Likelihood estimator (MLE), estimators based on spacings called Generalized Maximum Spacing estimators (GSEs), and the One Step Minimum Hellinger Distance estimator (OSMHD), on data originating from a circular distribution. The purpose of the study is to investigate the different estimators’ performance on directional data. LÄS MER
3. A Study of Gradient-Based Algorithms
Kandidat-uppsats, Lunds universitet/Matematisk statistikSammanfattning : Gradient-based algorithms are popular when solving unconstrained optimization problems. By exploiting knowledge of the gradient of the objective function to optimize, each iteration of a gradient-based algorithm aims at approaching the minimizer of said function. LÄS MER
4. The unweighted mean estimator in a Growth Curve model
Master-uppsats, Linköpings universitet/Matematisk statistik; Linköpings universitet/Tekniska fakultetenSammanfattning : The field of statistics is becoming increasingly more important as the amount of data in the world grows. This thesis studies the Growth Curve model in multivariate statistics which is a model that is not widely used. One difference compared with the linear model is that the Maximum Likelihood Estimators are more complicated. LÄS MER
5. Multiantenna Time Of Arrival Estimation
L3-uppsats, KTH/SignalbehandlingSammanfattning : In the communications literature exist many documents that explain how to use spatial diversity to improve the performance of the system. However, the use of spatial diversity has not been studied in depth for GNSS, although in the last years the subject has received some interest, [6] and [20]. LÄS MER