🌘 傅立葉變換那超乎尋常的有效性
➤ 從數學理論到 DVB-T 解碼器的工程實踐之路
https://joshuawise.com/resources/ofdm/
這篇內容彙整了 Joshua Wise 在 Teardown 2025 演講的精華資源。作者深入探討了傅立葉變換(Fourier Transform)在工程領域中展現的強大威力,特別是它如何支撐起現代通訊技術。他不只分享了演講投影片與錄影,更公開了用於生成海量圖表的 Jupyter 筆記本,以及他親手撰寫的 DVB-T 解碼器原始碼。從 1966 年的 OFDM 專利到現代的同步演算法實作,這份筆記完整記錄了一位工程師如何將深奧的數學理論轉化為實際可行的軟體工具。
+ 「這份資源包簡直是通訊工程師的寶庫!特別是 DVB-T 解碼器的實作,讓抽象的訊號處理變得清晰易懂。」
+ 「作者提到『雖然照著論文打程式碼但不完全理解原理』的部分非常有共鳴,這正是很多硬核工程開發的真實寫照。」
##數位訊號處理 #傅立葉變換 #無線通訊 #技術實作 #OFDM
The Unreasonable Effectiveness of the Fourier Transform

The Unreasonable Effectiveness Of The Fourier Transform

A talk, The Unreasonable Effectiveness of the Fourier Transform, was presented by [Joshua Wise] at Teardown 2025 in June last year. Click-through for the notes or check out the video below the brea…

Hackaday

Just found this website and associated YouTube channel. Such an amazing resource for understanding complex modulation schemes used in modern communications.

https://www.wirelessexplained.com/

#radio #wireless #learning #hamradio #ofdm #qam #5g

Home - Wireless Explained

At Wireless Explained, we turn complicated wireless concepts into understandable and engaging stories, using simple analogies and a fun approach. Originally launched as a YouTube Channel, our content now lives here offering introductory lessons, so no prior technical background is

Wireless Explained - Go beyond theory and explore the real-world technology used in wireless communication. This website complements our YouTube channel "Wireless Explained", explaining concepts in a fun and analogical way.
Introducing Beechat & the Kaonic 1S | CEO Interview

YouTube
[Tw] LTO情報ありがたい。LTO5だと最近は5000円くらいなのか。自分が高値で掴んじゃったのか〜。 / 他2件のコメント https://t.co/CmUo1ZB36Z “誤家庭?の2024年研究発表会 #OFDM #光配線 #LTO - rela1470のブログ” (14 users) https://t.co/5L1pQsWeXS
[de] https://twitter.com/windymelt/status/1884256314517602697
『誤家庭?の2024年研究発表会 #OFDM #光配線 #LTO - rela1470のブログ』へのコメント

この記事に対して3件のコメントがあります。コメントは「LTO情報ありがたい。LTO5だと最近は5000円くらいなのか。自分が高値で掴んじゃったのか〜。」、「LTOドライブって型落ちだと5000円で買えるのかー。」、「判定必要ないぐらいに誤家庭が過ぎてて笑った」です。

はてなブックマーク

Ethiopia: Veteran politician, businessman Bulcha Demeksa dies at 93

Ethiopia: Veteran politician, businessman Bulcha Demeksa dies at 93 Ethiopia: Veteran politician, businessman Bulcha Demeksa dies at 93 Photo: Awash Bank Bulcha Demeksa, a prominent Ethiopian politician, businessman, and founder of the Oromo Federalist Democratic Movement (#OFDM), passed away this morning at the age of 93, local media reported. Known for his unwavering advocacy for democracy and good…

https://ethiopianstoday.com/2025/01/06/ethiopia-veteran-politician-businessman-bulcha-demeksa-dies-at-93/

Ethiopia: Veteran politician, businessman Bulcha Demeksa dies at 93

Ethiopia: Veteran politician, businessman Bulcha Demeksa dies at 93 Ethiopia: Veteran politician, businessman Bulcha Demeksa dies at 93 Photo: Awash Bank Bulcha Demeksa, a prominent Ethiopian polit…

ETHIOPIANS TODAY

お、 #OFDM ~ってなっている #地デジ #地上デジタル放送 #ワンセグ #SDR

"SDRドングルを3本並べることで必要な帯域幅を確保しています"
デジタル復調の学習を目的として、ワンセグチューナーで地デジのフルセグTSを抜く https://qiita.com/amutou/items/5ae1e7dfb560ccfc4a69

Today’s #neptune meetup video recording is here:

youtu.be/5ngsASdED…

Techniques to lower #OFDM latency discussed, space frequency block coding document progress, #DEFCON demonstration update, Zadoff-Chu AGC Burst insertion challenges in #Simulink.

7 February 2024 Neptune Meetup

YouTube

Latest update from #Neptune project, an #opensource #hamradio 5GHz #OFDM data link.

youtu.be/opj5tsJlO…

25 January 2024 Neptune HDL Coder: Part 4

YouTube

Part 2 of a series about the #opensource #Neptune project and the efforts to get it on the air by converting #MATLAB and #simulink models into #HDL was published today. Thank you to everyone helping make this possible!

Learning about #ofdm and how to use HDL Coder has been challenging and rewarding.

https://youtu.be/Tgrb4NYdiAE?si=B81bFOvUUteEsm6z

8 January 2024 Neptune HDL Coder 2

YouTube