연속 웨이블릿 변환
1차원 및 2차원 CWT, 1차원 역 CWT, 1차원 CWT 필터 뱅크, 웨이블릿 상호 스펙트럼 및 코히어런스
신호 또는 영상의 CWT(연속 웨이블릿 변환)를 얻고, 역 CWT로 신호 근사 성분을 생성하고, 웨이블릿 코히어런스를 사용하여 두 신호의 시변 패턴을 비교하고, 웨이블릿 대역통과 필터를 시각화하고, 웨이블릿 싱크로스퀴징을 사용하여 고분해능 시간-주파수 표현을 얻습니다.
함수
앱
웨이블릿 영상 분석기 | 영상 분해 및 시각화 (R2023a 이후) |
웨이블릿 시간-주파수 분석기 | 신호의 스케일로그램 시각화 (R2022a 이후) |
도움말 항목
앱
- Using Wavelet Image Analyzer App
Visualize discrete and continuous wavelet decompositions of images. - Using Wavelet Time-Frequency Analyzer App
Learn how to use to visualize scalograms of 1-D signals and recreate results in your workspace. - Viewing CWT Decomposition of Image in Wavelet Image Analyzer
Learn how to use Wavelet Image Analyzer to visualize a CWT decomposition of an image and recreate the analysis in your workspace.
1차원 CWT 분석 및 합성
- 연속 웨이블릿 분석
연속 웨이블릿 변환을 사용하여 시간-주파수 분석을 수행합니다. - Continuous Wavelet Analysis of Modulated Signals
This example shows how to use the continuous wavelet transform (CWT) to analyze modulated signals. - Continuous Wavelet Analysis of Cusp Signal
Understand the differences between wavelet transform modulus maxima and the CWT of a cusp signal. - Inverse Continuous Wavelet Transform
Understand the mathematics of the inverse continuous wavelet transform. - Boundary Effects and the Cone of Influence
Learn about the cone of influence and how it represents regions of significant boundary effects. - Morse Wavelets
Learn about the generalized Morse family of analytic wavelets.
2차원 CWT 분석
- Two-Dimensional CWT of Noisy Pattern
This example shows how to detect a pattern in a noisy image using the 2-D continuous wavelet transform (CWT). - 2-D Continuous Wavelet Transform
Learn about the 2-D Continuous Wavelet Transform.
웨이블릿 계수, 스케일 및 싱크로스퀴징
- Continuous Wavelet Transform and Scale-Based Analysis
Learn about the continuous wavelet transform and the relationship between frequencies and scales. - Continuous Wavelet Transform as a Bandpass Filter
Understand the continuous wavelet transform as bandpass filtering. - Wavelet Synchrosqueezing
Time-frequency reassignment technique for analyzing signals with oscillating modes.