GLONASS ambiguity resolution

A new integer-estimable GLONASS FDMA model is studied and analysed. The model is generally applicable, and it shows a close resemblance with the well-known CDMA models. The analyses provide insights into the performance characteristics of the model and concern a variety of different ambiguity-resolution critical applications. This will be done for geometry-free, geometry-fixed and several geometry-based formulations. Next to the analyses of the model’s instantaneous ambiguity-resolved positioning and attitude determination capabilities, we show the ease with which the model can be combined with existing CDMA models. We thereby present the instantaneous ambiguity-resolution performances of integrated L1 GPS + GLONASS, both for high-grade geodetic and mass-market receivers. We also consider the potential of the single-frequency combined model for mixed-receiver processing, particularly for the case the between-receiver GLONASS pseudorange data are biased. In all cases, the speed of successful ambiguity resolution is studied as well as the precision with which positioning is determined. Software routines for constructing the model are also provided.

[1]  Nobuaki Kubo,et al.  Evaluation and Calibration of Receiver Inter-channel Biases for RTK-GPS/GLONASS , 2010 .

[2]  Peter Teunissen,et al.  A new GLONASS FDMA model , 2019, GPS Solutions.

[3]  Anna B. O. Jensen,et al.  Review of code and phase biases in multi-GNSS positioning , 2017, GPS Solutions.

[4]  Peter Teunissen,et al.  Integer least-squares theory for the GNSS compass , 2010 .

[5]  A. Leick.  GPS satellite surveying , 1990 .

[6]  P. Teunissen,et al.  The ratio test for future GNSS ambiguity resolution , 2013, GPS Solutions.

[7]  Robert Odolinski,et al.  Single-frequency, dual-GNSS versus dual-frequency, single-GNSS: a low-cost and high-grade receivers GPS-BDS RTK analysis , 2016, Journal of Geodesy.

[8]  O. Montenbruck,et al.  Springer Handbook of Global Navigation Satellite Systems , 2017 .

[9]  Robert Odolinski,et al.  Low-cost, high-precision, single-frequency GPS–BDS RTK positioning , 2017, GPS Solutions.

[10]  Peter Teunissen,et al.  GPS double difference statistics: with and without using satellite geometry , 1997 .

[11]  Rong Duan,et al.  GNSS Single Frequency, Single Epoch Reliable Attitude Determination Method with Baseline Vector Constraint , 2015, Sensors.

[12]  Peter Teunissen,et al.  Testing a new multivariate GNSS carrier phase attitude determination method for remote sensing platforms , 2010 .

[13]  Gabriele Giorgi,et al.  Testing of a new single-frequency GNSS carrier phase attitude determination method: land, ship and aircraft experiments , 2011 .

[14]  Lou Yidong,et al.  GLONASS pseudorange inter-channel biases and their effects on combined GPS/GLONASS precise point positioning , 2013, GPS Solutions.

[15]  P. Teunissen.  The least-squares ambiguity decorrelation adjustment: a method for fast GPS integer ambiguity estimation , 1995 .

[16]  Peter J. G. Teunissen.  A-PPP: Array-Aided Precise Point Positioning With Global Navigation Satellite Systems , 2012, IEEE Transactions on Signal Processing.