About

Gender

Male


About Me:

Working at Drotek


Please tell us a bit about your UAV interest

Working at designing and building drones, GPS, DGPS, boards


Hometown:

Toulouse


Activity Feed

Kevin Lopez Alvarez commented on DROTEK's blog post SMARTNAV L1 RTK field test scenario - Results
"@Chris, the integration is described here."
Jun 29, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post SMARTNAV L1 RTK field test scenario - Results
"For this test, rover has been working at 5Hz and base at 1Hz. 1Hz also for reference trajectory. Ad yes, M8T can go up to 10 Hz."
Jun 29, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post SMARTNAV L1 RTK field test scenario - Results
"Yes it can be used with the "Inject GPS" function in Mission Planner, even though it might be a good idea to have a separate strong link for the differential corrections (≈10 kbps)."
Jun 28, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post U-Blox M8P Integration done!
"Not for the moment but probably on a near future!"
Apr 16, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post U-Blox M8P Integration done!
"@Maxime : we haven't worked with M8U yet, but looking forward to do it!

@Nikola : we have been working directly with U-Blox. This was a first test, so we did not measure accuracies or timings precisely. Just to let everyone know it is functional…"
Apr 16, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post RTKLIB Web Console by DROTEK : you'll forget command-line tool after using it !
"@ JB : it is 11cm diameter and 140g for Pro XL version and 7cm diameter and approximately 60g for Basic XL version"
Mar 31, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"Very interesting article :
http://effigis.com/centimetric-precision-with-affordable-l1-receivers/
For further discussion, do not hesitate to post on our forum as well :
http://drotek.com/forum"
Feb 22, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"Yes we have seen that , this is great work! We are in contact with U-Blox on a regular basis and follow closely this chip. We will try to be the first ones to provide a RTKLIB/M8P comparison, we have asked them for some samples that we will get soon…"
Feb 15, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"Testing other antennas!"
Feb 12, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"@Guy, @Antonio, antenna ordered! I'll keep you updated"
Feb 9, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"@Guy, of course we can consider this antenna, I think we will order a couple of them so we can test them. It is a custom version of TW2410, so it has no magnetic band and shorter cable. Otherwise TW4421 might be a compromise between…"
Feb 9, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"@Thorsten, a good passive antenna like Taoglas with an adapted ground plane can give good results. SNR levels can be as high as 50 in open sky very clear environments. However, if you move to more "populated" environments performance substantially…"
Feb 8, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"@Darius, in France at least it is completely free, without any registration nor special terms, I have no knowledge if such institutes exist in other countries, but I guess there should be something similar"
Feb 8, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"Actually there are some tips to get a correct position (cannot be as good as dual frequency obviously)  for the base if you cannot afford dual-frequency receivers. For instance in France the IGN (French National Geographical Institute) has stations…"
Feb 8, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"@Hector : we will publish in our wiki a detailed sequence of tests, including raw data analysis, GCP comparison, stationary/kinematic precision, etc... If you have any ideas of tests, just tell us we will be happy to execute them!"
Feb 8, 2016
Kevin Lopez Alvarez commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"Hi Elios, 
I have not tried but I think it could be possible this way :
Base : inject base's raw data into telemetry mavlink
Rover : connect telemetry's TX to Edison, sniff raw data packets for RTK (for example using RTKLIB's str2str, and a buffer…"
Feb 7, 2016
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