IGS Bias and Calibration Working Group

Brief description

The IGS Bias and Calibration Working Group (BCWG) coordinates research in the
field of GNSS bias retrieval and monitoring. It defines rules for appropriate,
consistent handling of biases which are crucial for a "model-mixed" GNSS receiver
network and satellite constellation, respectively. At present, we consider: P1-C1,
P2-C2, and P1-P2 differential code biases (DCB). Potential quarter-cycle biases
between different phase observables (specifically L2P and L2C) are another issue
to be dealt with. In the face of GPS and GLONASS modernization programs and
upcoming GNSS, like the European Galileo and the Chinese Compass, an increasing
number of types of biases is expected.

Working Group Chair

Stefan C. Schaer (CODE/swisstopo, Switzerland)

Working Group Members

Mahdi Alizadeh (TU Vienna, Austria)

Shailen Desai (JPL, USA)

Brian Donahue (EMR/NRCan, Canada)

Peng Fang (SIO, USA)

Yang Gao (U of Calgary, Canada)

Gerd Gendt (GFZ, Germany)

Christine Hackman (USNO, USA)

Thomas A. Herring (MIT, USA)

Robert Khachikyan (IGSCB, USA)

Kristine M. Larson (U of Colorado, USA

Rodrigo Leandro (Trimble, Germany)

Gerard Petit (BIPM, France)

Jim Ray (NGS, USA)

Nacho Romero (ESA/ESOC, Germany)

Peter Steigenberger (TU Munich/PDR, Germany)

Sonya Todorova (TU Vienna, Austria)

ex officio:

Chair of the Clock Products WG

Chair of the Ionosphere WG

Chair of the Reprocessing WG

Chair of the GNSS WG

IGS Analysis Coordinator

IGS Network Coordinator

Representative of the BIPM