EunJu Kim, Soo Hyung Park, Yung Hwan Byun

DOI Number XXX-YYY-ZZZ

Conference Number HiSST-2022-148

Determining the attitude angle of an aircraft can greatly help measure the force and moment
coefficients without any balance system. There are several ways to measure the force and moment of
a model. One of the most representative methods is the use of balance and free-flight module. The
method using balance has the disadvantage of having to build an additional DAQ system to receive
data. In addition, a deconvolution process that separates the signal from the model due to the vibration
of the support is essential. For the free-flight experiment, optical equipment for shadow graph
techniques and high-speed camera are required, but force and moment measurements are possible
without deconvolution process. The previous study of experimenting with existing free-flight modules
included counting pixels on direct images and using Harrison detector algorithm [1] to read and track
down points in the model.
In this study, we chose to read straight lines in the model, unlike the image processing method of the
preceding study. The algorithm used to read the straight lines on the image is the Hough algorithm.
Applying this algorithm in conjunction with the image processing technique allows the recognition of
straight lines of falling objects.

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In Categories: 1.Events, HiSST 2022, Testing and Evaluation
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