HOW EXACTLY THIS MATLAB PROGRAM WORKS?

2015 4 月 2
1 回答
回答採用済み
2015 4 月 2 に更新
9 ビュー (30 日間)

0 投票

This is a program in which we are detecting error in rotating machines by recording their sound and passing it through matlab and comparing the different signals.

サインインしてこの質問に回答する。

 採用された回答

Star Strider
Star Strider 2015 年 4 月 2 日

1 投票

It takes the Fourier transform of the signal, subtracts the D-C offset, computes the power as the square of the magnitude of the Fourier transformed signal, convolves it with a Hanning window, and plots it.

2 件のコメント
なしを表示 なしを非表示

shilu
shilu 2015 年 4 月 2 日
SORRY I AM JUST A BEGINNER. COULD U TELL WHAT IS D-C OFFSET ,WHY ONLY POWER IS COMPUTED AND WHAT IS THE USE OF HANNING WINDOW
Star Strider
Star Strider 2015 年 4 月 2 日
D-C offset is the mean (average) of the signal amplitude. You will have to ask the person who wrote the program why they chose to use power. The window essentially acts as a low-pass filter.

サインインしてコメントする。

その他の回答 (0 件)

カテゴリ

ヘルプ センター および File Exchange で Discrete Fourier and Cosine Transforms についてさらに検索

タグ

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by