To: IGS-BCWG, IGS-ACS, others Subject: Questionnaire concerning of biases for undifferenced ambiguity resolution Dear colleagues, For the planned Workshop on GNSS biases (www.biasws2012.unibe.ch) we would like to include biases for undifferenced ambiguity resolution. For this, we would like to ask the experts in this field to provide us with the following information by 18 Dec 2011 (to: biasws2012.aiub@lists.unibe.ch). Workshop participation from corresponding side would be very welcome. In case of interest please register asap at: http://www.biasws2012.unibe.ch/registration.html Note that we intend to organize/finalize the workshop program next week: http://www.biasws2012.unibe.ch/program.html http://www.biasws2012.unibe.ch/programme.pdf Thanks in advance. Best regards, Stefan Schaer, Michael Meindl =============================================================================== Questionnaire concerning of biases for undifferenced ambiguity resolution: -------------------------------------------------------------------------- Your name and institution: Contact email address(es): Primary reference/paper for your approach (URL address or email attached): List of bias types considered and their temporal resolution: Clock corrections are generated at intervals of: Ambiguity resolution for: [ ] undifferenced observations [ ] between-satellite observations [ ] other: How do you select GPS code observable types (to be used for a specific station) if P1 and C1, or P2 and C2 are available? Do you generate integer phase clock corrections on a regular/operational basis? [ ] Yes [ } No, but test results (in clock-RINEX) would be available for: Recommendations for PPP users of your integer phase clock product: Do you have corresponding bias results available (in ASCII form)? [ ] Yes [ ] No Are there any specialties concerning your integer phase clock product? Extra question: Do you have experience/plans in extending your approach to GLONASS observations? [ ] No [ ] Yes, please specify: ===============================================================================