San Luis Obispo, CA

About Me:

I am a graduate student at California Polytechnic State University, San Luis Obispo. I am working on a Master's in Aerospace Engineering with a concentration in control systems.

Please tell us a bit about your UAV interest

For my thesis, I am working on establishing a low-cost UAV program to serve as a test-bed for multiple UAV control projects. My hope is to accomplish formation flight via potential function guidance and compare flight test results to simulation.


Sacramento, CA

Activity Feed

Christian Lopez posted discussions
Mar 20, 2013
Christian Lopez replied to Christian Lopez's discussion MAVLink connection fails "Getting Params...(sysid 2 compid 1)"
"As a follow up to the previous post, I toggled back to sysid=1, and i still have an issue as it reads the parameters. It just gets stuck on different ones. 
So, perhaps the modifications I have made have somehow interfered with the parameter read-in…"
Jan 25, 2013
Christian Lopez posted a discussion
Wondering if anyone has experienced this before.I have changed my sysid (MAVLink's way of distinguishing different vehicles) in the APM_Config.h file for a multiple UAV mission (The other a/c need to be able to identify who's sending them…
Jan 25, 2013
Christian Lopez commented on Bharat Tak's blog post Comprehensive APM2.5(brand new) Xbee Troubleshooting all available options
"Awesome! Thanks for sharing... I will give that a try as soon as possible."
Jan 22, 2013
Christian Lopez posted a discussion
With APM2.5, I can't seem to get the full Telemetry data to flow out of the Telemetry port. With USB connected I get full telemetry through the USB port, but with power supplied to the input rail (USB not connected), I only get the MAVLink…
Dec 16, 2012
Christian Lopez posted a discussion
Using XBee Pro 802.15.4 S1 (2.4GHz), Sparkfun Xplorer regulated board, ArduPlane 6.5 APM2.0 and APM 2.5Using the same paired XBees, I have no problem establishing a telemetry link with an APM 2.0.I use the same pair of XBees, hooked up to an APM 2.5…
Dec 11, 2012
Christian Lopez replied to Seth Bourne's discussion APM 2.5 with XBee-PRO ZB
I gave it a shot. It worked in AT mode, but I could not get them to communicate well in API mode. It seems the MAVLink datarate (as written) is too much for the Mesh network setup to handle. Let me know if you make any break-throughs. I have…"
Dec 11, 2012
Christian Lopez posted a discussion
Wondering if anyone out there has some suggestions for how to correctly analyze GPS data for error correlations or trends.Part of my research involves gaining a better understanding of the position accuracy so that I know how close I can hope to get…
Nov 19, 2012
Christian Lopez replied to Konstantin Schmit's discussion Bachelor Thesis ArduPlane model with Matlab/Simulink in Learning to program the Ardupilot Mega
I've been working on mapping a version of the flight controller for Matlab/Simulink as well. I took a break to work on an XBee issue, but my next step was to model what I derived in Simulink.

If you want, I'd be happy to review the…"
Nov 15, 2012