IMA equations

Here are some of the questions I had when starting as an IMA. How do you schedule IDTs? You have to be on a .mil domain or else you need to use arrows-r. utaps Who pays? IDTs and the 2-week annual tour are centrally funded. What are my work requirements? I am cat A with … Read more

Your key with fingerprint … is not authorized to access heroku with Ubuntu

This error was pretty hard to solve. I emailed heroku support and they recommended: “https://github.com/ddollar/heroku-accounts”:https://github.com/ddollar/heroku-accounts bq. For git commands to work git needs to use the ssh key associated with that account. It’s probably choosing a key associated with a different account which is causing these permissions errors. You can use a ~/.ssh/config file to … Read more

Render CSV in Rails

First I read the docs at: rubydoc.info to understand how FasterCSV is now in the ruby standard library. Then, I set up the following code: https://gist.github.com/tbbooher/1700200 This gives me a pretty flexible solution to render csv, but I’m really interested to see if this is a good way to go. Your comments are appreciated.

Radar parameter estimation

Here we tackle what a Radar needs to accurately measure a target’s position, size and motion. (This is nothing new, just a placeholder for some of my notes.) First of all, everything depends on $SNR$, and the parameter estimation happens in the main computer of a Radar. The theoretical rms error of a measurement is … Read more