CloudACM – Page 11 – Autonomous Computational Machines

SDR Data Processing

November 29, 2022 Patrick Gilfeather

In the last post, https://www.cloudacm.com/?p=4136, there was a lead in on the topic of capturing the data from SDR hardware using GQRX. This post was also mentioned, https://www.cloudacm.com/?p=3209. In this post, these topics will be revisited with some greater detail and enhancement. The first item covered here will be IQ data captured using GQRX. When using GQRX with SDR hardware, it’s not always convenient to view the data live. This has been the case during my field work, with the…

Radio Frequency Visualization

October 28, 2022 Patrick Gilfeather

This post will revisit a topic which has been covered in earlier posts, but with some enhancements. This earlier post used python to visualize a radio sweep, https://www.cloudacm.com/?p=3209. The method was specific to the SDR hardware and the rtl_power command to generate a dataset that was then processed with python to generate a plot. This post will expand on the visualization by using python to generate varied plot types to help in understanding the radio signals observed. The previous post…

Picavet Gravitational Leveling for Aerial Imaging

September 30, 2022 Patrick Gilfeather

There was an earlier post regarding gimbal stabilization, https://www.cloudacm.com/?p=3609. The focus then was using software instead of hardware as a solution. During that research, I found information about self leveling platforms used on kite lines. Here is a video demonstrating the results, but I wasn’t sure how it was accomplished. https://www.youtube.com/watch?v=6Nnqr0onUvk I then found a video from Evan Reinheimer demonstrating his use of a picavet. The picavet is a platform that gravitational self levels when suspended from a kite line….