Amir Khodabandeh

A generalized Kalman filter with its precision in recursive form when the stochastic model is misspecified

PJG Teunissen, A Khodabandeh, D Psychas

Journal article  |  2021  |  Journal of Geodesy

In this contribution, we introduce a generalized Kalman filter with precision in recursive form when the stochastic model is missp..

GLONASS-only FDMA plus CDMA RTK: Performance and outlook

Safoora Zaminpardaz, Peter JG Teunissen, Amir Khodabandeh

Journal article  |  2021  |  GPS SOLUTIONS

An assessment of standalone GLONASS RTK performance is provided using its FDMA and CDMA signals. The new integer-estimable GLONASS..

Single-station PPP-RTK: correction latency and ambiguity resolution performance

A Khodabandeh

Journal article  |  2021  |  Journal of Geodesy

Single-station PPP-RTK is a special case of PPP-RTK in that corrections are computed, instead of a network, by only one single GNS..

A study on multi-GNSS phase-only positioning

Amir Khodabandeh, Safoora Zaminpardaz, Nandakumaran Nadarajah

Journal article  |  2021  |  Measurement Science and Technology

The GNSS carrier phase measurements form the basis of high-precision satellite positioning. These measurements are often accompani..

First results of glonass-only Cdma Fdma integer ambiguity resolution

PJG Teunissen, S Zaminpardaz, A Khodabandeh

Conference Proceedings  |  2020  |  2020 European Navigation Conference, ENC 2020

In [1] a new integer-estimable GLONASS FDMA model was introduced. The new model is generally applicable and guarantees, independen..

State-space positioning corrections via single-receiver GNSS data

A Khodabandeh, N Nadarajah

Conference Proceedings  |  2020  |  Proceedings of the 33rd International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS+ 2020

State-space representation of the positioning corrections gives PPP-RTK a marked advantage over its observation-space counterpart,..

GLONASS ambiguity resolution

PJG Teunissen, A Khodabandeh

Journal article  |  2019  |  GPS Solutions

A new integer-estimable GLONASS FDMA model is studied and analysed. The model is generally applicable, and it shows a close resemb..

Integer estimability in GNSS networks

A Khodabandeh, PJG Teunissen

Journal article  |  2019  |  Journal of Geodesy

Estimability and S-systems are important concepts when dealing with rank-defect models. In this contribution, we generalize the co..

A 4D tomographic ionospheric model to support PPP-RTK

G Olivares-Pulido, M Terkildsen, K Arsov, PJG Teunissen, A Khodabandeh, V Janssen

Journal article  |  2019  |  Journal of Geodesy

Successful implementation of integer ambiguity resolution enabled precise point positioning (aka PPP-RTK) algorithms is inextricab..

On the detectability of mis-modeled biases in the network-derived positioning corrections and their user impact

Amir Khodabandeh, Jinling Wang, Chris Rizos, Ahmed El-Mowafy

Journal article  |  2019  |  GPS SOLUTIONS

High-precision single-receiver positioning requires the provision of reliable network-derived corrections. Care must therefore be ..