On this panel, you can select the biases applied during the processing. The source of the (code) biases is determined on the left side. You can choose (additional) phase biases for PPP-AR on the right side. Nowadays, most satellite products enabling PPP-AR are provided in a single (SINEX Bias) file.
This panel is regularly changing due to the emerging number of bias products. The radio buttons are grouped into DCB, operational IGS, IGS MGEX, and (near) real-time products. Furthermore, biases can be selected manually or not used at all.
CAS Multi-GNSS DCBs: Daily mGNSS Differential Code Biases calculated from the Chinese Academy of Sciences (CAS) in Wuhan [Wang et al., 2015]
CAS Multi-GNSS OSBs: Daily mGNSS Differential Code Biases calculated from the Chinese Academy of Sciences (CAS) in Wuhan
DLR Multi-GNSS DCBs: Quarterly released Differential Code Biases calculated from the German Aerospace Center (DLR), please check [Montenbruck et al., 2014]
CODE DCBs: GPS and Glonass DCBs from CODE. Somehow older format.
CODE OSBs: Consistent with the operational final IGS orbit and clock products from CODE. These biases refer to the IF-LC and enable PPP-AR for GPS and Galileo.
CNES OSBs: Consistent with the operational final IGS orbit and clock products from CNES. These biases refer to the IF-LC and enable PPP-AR for GPS and Galileo. At some point, CNES added this SINEX Bias File to the WL biases included in the clock file header.
CODE MGEX: Consistent with the IGS MGEX products from CODE. These biases refer to the IF-LC and enable PPP-AR for GPS and Galileo.
CNES MGEX: Consistent with the IGS MGEX products from CNES. These biases refer to the IF-LC and enable PPP-AR for GPS and Galileo. At some point, CNES added this SINEX Bias File to the WL biases included in the clock file header.
WUM MGEX: Consistent with the rapid IGS MGEX product from Wuhan enabling PPP-AR for GPS, Galileo, and BeiDou in all approaches (?).
GFZ MGEX: Consistent with the IGS MGEX products from GFZ.
CNES postprocessed: http://www.ppp-wizard.net/daily.html
Correction Stream: Code biases from a correction stream are used.
Broadcasted TGD: The Time Group Delay from the broadcast navigation message is used (GPS and Galileo). This option is possible if the navigation message only is used.
manually: Choose (code) biases manually - DCBs (*.dcb) or SINEX Bias File(*.bia/*.bsx).
off: No (code) biases are used
WHU phase/clock biases: [Geng et al., 2019]
SGG FCBs: Fractional Phase Biases (FCBs) for WL and NL to enable PPP-AR, for GPS+Galileo+BeiDou+QZSS. Please check: [Hu et al., 2020] and SGG FCB Github
Correction Stream: Phase biases from the selected correction stream are used.
off: No phase biases are used
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