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Best Procedure for Surveying UAS Targets for High Accuracy

andrewm · 2020-11-19T22:02:00Z

I'm a civil PE that for some reason decided to enroll in grad school at age 49????.?ÿ I am pursuing a MS in Geomatics Engineering and GIS through Colorado University - Denver.?ÿ For my master's project I want to assess optimum mission parameters for high-accuracy mapping using a PPK UAS (WingtraOne).?ÿ In order to conduct this type of assessment I need very accurate UAS targets to serve as checkpoints. The site I have selected is about 40 acres and consists of a local recreational ball park.?ÿ As you can see of the attached map, I would like to place 20 targets throughout the park.?ÿ The targets are 12" square aluminum panels w/ a black and white checkerboard pattern.?ÿ There is a hole in the center for a 1/4" x 6" Mag Hub Nail.?ÿ A current NGS benchmark (DP2512) is conveniently located in the NE corner of the park (yellow triangle).?ÿ I own the following equipment at my engineering firm: Trimble S5 (5") w/ MT1000 prism Trimble T10 tablet w/ Access 2019 Trimble R6-4 base and R2 RTK rover What would be the recommended procedure to obtain the most accurate coordinates of the targets??ÿ Ideally the accuracy of the targets (horizontal and vertical) need to be better than the smallest ground sample distance of the UAS imagery.?ÿ In my case, the Sony RX1RII camera can achieve a GSD of 0.025ft at 200ft agl.?ÿ This may not be doable with the equipment I have.?ÿ I can likely borrow a level, or possibly more accurate total station, if necessary. The targets will only be used as check points to evaluate the accuracy of PPK-only solutions using the Wingtra. Any tips or advice is appreciated. Thanks! ?ÿ

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john-nolton

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@andrewm?ÿ ?ÿIs there some way you can make a pdf file of your Report so I can read it?

Posted : March 9, 2022 10:41 am

bill93

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The link asks me to sign in to a Microsoft account that I don't have.

Posted : March 9, 2022 10:43 am

andrewm

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Attachment : Milanes Masters Report Fall 2021.pdf

Posted : March 9, 2022 11:19 am

john-nolton

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@andrewm?ÿ ?ÿThank you for the pdf of your work.

Posted : March 9, 2022 1:14 pm

spmpls

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Some may find this research report useful

https://dot.ca.gov/-/media/dot-media/programs/research-innovation-system-information/documents/final-reports/ca21-3039-finalreport-a11y.pdf

Posted : March 9, 2022 2:53 pm

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Best Procedure for Surveying UAS Targets for High Accuracy

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