codyd51

Joined 12 years ago

Karma
1,056
Submissions
87
Member since
Aug 20
Static analysis, file formats, operating systems, oh my!
View on Hacker News

Recent submissions

Comment · 1 year ago
I believe this is not the case in today’s ubiquitous equal temperament?
Comment · 1 year ago
Comment · 2 years ago
Hi, author of axle here - thank you for the shout out! It’s been a wonderfully fun and enriching project to work on over the years. I’m now working on XNU at Apple, so won’t be working further on axle for the foreseeable future.
Comment · 2 years ago
One potential hiccup with your one-photino-bird-universe theory (which is quite fun!): I believe I remember a scene in which the ‘birth’ of a photino bird was described. If I remember correctly, it was indeed described as a clone of its parent.
Comment · 2 years ago
What a wonderful thing to say about a stranger's article! Thank you very much for posting this.
Comment · 2 years ago
Whoa, thank you! I don't know much about RF and learned ad-hoc for this project, and it seems perfectly plausible to me that someone knowledgeable would be able to look at this and identify a root cause - I certainly didn't do anything special for clock recovery, and based on the name I would have blindly assumed that synchronising the carrier wave _would_ be tantamount to recovering the satellite clock. I haven't researched clock recovery yet, and will do so. Once again, thank you!
Comment · 2 years ago
Thank you for linking this, this course is phenomenal! Several of the videos were immensely helpful in my GPS journey.
Comment · 2 years ago
Thank you very much for your thoughtful offer! I won't be able to readily work on side projects after starting my new role next week, and am content to consider this project complete for the time being. However, what you've proposed does sound interesting and fun. I'm going to go ahead and shoot an email to the address listed in your profile.
Comment · 2 years ago
I believe you are correct. My understanding is that the root P key is rotated daily, and needs to be manually uploaded to any military hardware that needs to use it.
Comment · 2 years ago
Thank you very much! I agree, they are incredible! I really had no idea until making this project, and it makes things like cellular phones so astoundingly impressive.
Comment · 2 years ago
This project only supports the 'legacy' C/A variant of the NAVSTAR constellation's signals.
Comment · 2 years ago
Thank you for sharing this! It is sort of a vulnerable thing to write, because it reveals the shapes and bounds of my own ignorance, and the path I took to learning. I am really grateful to hear that you appreciated the approach.
Comment · 2 years ago
I am really grateful for this nice comment, thank you! As a self taught programmer with no background in RF or EE, this project was definitely a stretch for me and involved lots of (sometimes frustrating) learning and experimentation. Looking back, I'm really glad for it, as it feels as though I've unlocked RF as a domain that I now understand a lot more tangibly and can use as a sort of tool. It reminds me of the things I love about computers themselves!
Comment · 2 years ago
Thank you very much!
Comment · 2 years ago
That's so great to hear, thank you for the nice feedback!

Live from the official Hacker News API

A modern reader for Hacker News · SvelteKit + Skeleton