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cross-track error navigation for UAV navigation

Hi all,

I am a new for UAV navigation.May I know about cross-track error and navigation toward the target waypoint system mathematically please.

 

                      thanks

                                        warmly regards,

                       

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Another crash :-(

Would be great if we had a little black box to anaylise crashes :)

 

After repairing from another crash, I had 3 or 4 good flights but then was at about 10 meters and things got weird and it crashed. Hard to tell what happened but the end result was at

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GPS MTK 1.6 firmaware and hdop

Hello, could some of the tech guys explain what is the new hdop feature in the latest MediaTek Firmware?

If I understand it is something to do with accuracy of the GPS signal but the value is much higher than what literature says.

I see in the comments

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Magnetometer Positioning ?

All:

 

What is the consensus on the positioning of the Magnetometer, soldered directly to the IMU using pins or separate form the IMU with the modified GPS cable? What are the pros and cons to each. I'm assuming placing directly on the IMU was consider

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Some opinions please

Just added pictures to the email list I send of story roundups every week from sUAS News. Now I am worried that it will clog inboxs and be slow loading.

 

This is what it looks like and already I'm not happy with how its rendered in this version but I

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Configurator 1.22

I have trouble uploading PID information to my Quad. It seems like the configurator only can handle integers. As soon as I add a dicimals it can not update. I can update decimals for the stable mode via Arduino serial link, but they dissapear when I

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Payload and power management

Hey,

 

I'm planning to purchase the Arducopter but have very serious payload limitations, I understand that the vehicle can lift off with 1400 gm max weight. My questions are:

 

1) What are the weights of the aluminium frames(both 22cm and 28 cm configur

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ESC calibration

Complete nooby query. When I plug the lipo into one of my ESCs there are no beeps at all, whereas the other three ESCs do beep. What could be the problem? Is the ESC faulty? Any help greatly appreciated.

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State of Dead Reckoning?

Hi all,

 

lets assume this non-flight scenario:

There is a street with supermarkets on the right and left.

I am walking down the street and into each supermarket, then down all the aisles and on to the next supermarket.

 

Obviously there is no GPS receptio

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DIY vs Pirates

I am running NG code at the moment, but heard that the Super Stable was out and supposed to be better.

I went to the site and down loaded it.

It seems simpler than the NG. Dip3 sets stable/acro, not by TX switch.

 

Did I download the right code?

Pirate Co

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