Error detection and correction

Error floor

The error floor is a phenomenon encountered in modern iterated sparse graph-based error correcting codes like LDPC codes and turbo codes. When the bit error ratio (BER) is plotted for conventional codes like Reed–Solomon codes under algebraic decoding or for convolutional codes under Viterbi decoding, the BER steadily decreases in the form of a curve as the SNR condition becomes better. For LDPC codes and turbo codes there is a point after which the curve does not fall as quickly as before, in other words, there is a region in which performance flattens. This region is called the error floor region. The region just before the sudden drop in performance is called the waterfall region. Error floors are usually attributed to low-weight codewords (in the case of Turbo codes) and trapping sets or near-codewords (in the case of LDPC codes). (Wikipedia).

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What Are Error Intervals? GCSE Maths Revision

What are error Intervals and how do we find them - that's the mission in this episode of GCSE Maths minis! Error Intervals appear on both foundation and higher tier GCSE maths and IGCSE maths exam papers, so this is excellent revision for everyone! DOWNLOAD THE QUESTIONS HERE: https://d

From playlist Error Intervals & Bounds GCSE Maths Revision

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04 Balancing Equations to find an error

In this video we find an error in a students work

From playlist skill 8 attempt 1

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Null Space: Is a Vector in a Null Space? Find a Basis for a Null Space

This video explains how to determine if a vector is in a null space and how to find a basis for a null space.

From playlist Column and Null Space

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Linear Algebra - Lecture 28 - Null Space of a Matrix

In this video lecture, I define the null space of a matrix, and work through several examples.

From playlist Linear Algebra Lectures

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Credit roll for Chaos

www.chaos-math.org

From playlist Chaos 日本語

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Prove a Null Space is a Subspace

This video provides a basic proof that a null space is a subspace.

From playlist Column and Null Space

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Game Programming Patterns part 24.4 - (Rust, GGEZ) Starting to create the level

We begin using the level array in the game data json file to fill out the grid and display the level proper. Links code - https://github.com/brooks-builds/learning_game_design_patterns twitter - https://twitter.com/brooks_patton book - http://gameprogrammingpatterns.com -- Watch live at

From playlist Game Programming Patterns Book

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CTNT 2020 - Sieves (by Brandon Alberts) - Lecture 1

The Connecticut Summer School in Number Theory (CTNT) is a summer school in number theory for advanced undergraduate and beginning graduate students, to be followed by a research conference. For more information and resources please visit: https://ctnt-summer.math.uconn.edu/

From playlist CTNT 2020 - Sieves (by Brandon Alberts)

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CTNT 2020 - Sieves (by Brandon Alberts) - Lecture 2

The Connecticut Summer School in Number Theory (CTNT) is a summer school in number theory for advanced undergraduate and beginning graduate students, to be followed by a research conference. For more information and resources please visit: https://ctnt-summer.math.uconn.edu/

From playlist CTNT 2020 - Sieves (by Brandon Alberts)

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Factorials, prime numbers, and the Riemann Hypothesis

Today we introduce some of the ideas of analytic number theory, and employ them to help us understand the size of n!. We use that understanding to discover a surprisingly accurate picture of the distribution of the prime numbers, and explore how this fits into the broader context of one o

From playlist Analytic Number Theory

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[Rust Programming] Learning to make a Roguelike - Day 50

[Recorded on 31 December, 2021] I've been playing Roguelikes for many years, and I've always thought about making one! Combine that with a desire to learn Rust, and we've got a match made in heaven. This session was recorded live from twitch on 31 December. I'm using the Roguelike Tutori

From playlist [Rust Programming] Writing Roguelike using RLTK

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Game Programming Patterns part 24.6 - (Rust, GGEZ) Creating the camera

We create the camera and have it view the world. Links code - https://github.com/brooks-builds/learning_game_design_patterns twitter - https://twitter.com/brooks_patton book - http://gameprogrammingpatterns.com -- Watch live at https://www.twitch.tv/brookzerker

From playlist Game Programming Patterns Book

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CTNT 2020 - Sieves (by Brandon Alberts) - Lecture 3

The Connecticut Summer School in Number Theory (CTNT) is a summer school in number theory for advanced undergraduate and beginning graduate students, to be followed by a research conference. For more information and resources please visit: https://ctnt-summer.math.uconn.edu/

From playlist CTNT 2020 - Sieves (by Brandon Alberts)

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Are Trading Pits Outdated?

The NYSE is one of the few exchanges to still feature open outcry floor trading - most have shifted to fully-electronic or algorithmic trading. Financial markets have continued to trade throughout the 2020 lockdown, but the exchange's trading floor was closed from 23 March and activity te

From playlist What is Happening In The Market?

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[Rust Programming] Learning to make a Roguelike - Day 57

[Recorded on 12 January 2022] I've been playing Roguelikes for many years, and I've always thought about making one! Combine that with a desire to learn Rust, and we've got a match made in heaven. This session was recorded live from twitch on 12 January. I'm using the Roguelike Tutorial

From playlist [Rust Programming] Writing Roguelike using RLTK

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Outtakes

Yes. I make mistakes ... rarely. http://www.flippingphysics.com

From playlist Miscellaneous

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いまからはじめる固定小数点設計 Part 1:理論編

固定小数点設計で悩んでいませんか? 信号処理などのアルゴリズムをFPGAに実装するためには固定小数点設計を適切に行う必要がありますが、固定小数点設計を初めて経験される方、FPGAの取り扱いに慣れていない方にとっては非常に難しいプロセスの一つです。本ビデオでは固定小数点設計において重要になる数体系や丸め誤差などの概念をわかりやすく説明します。 初めてFPGAを使う方、固定小数点設計のご経験の無い方に最適な内容です。 本ビデオの実践編は以下よりご覧ください。実際にシミュレーションで理論通りの誤差に収まっているかを確認する方法や、MATLAB/Simulinkを使って効率的に

From playlist MATLAB日本語ビデオ (all Japanese videos)

Related pages

Signal-to-noise ratio | Sparse graph code | Viterbi decoder