Mexican Hat wavelet

The Mexican Hat wavelet, also known as the Ricker wavelet, is a mathematical function used in signal processing to analyze and detect features like edges or sharp changes in data. It resembles a ripple or a hat with a central peak and surrounding negative regions, allowing it to highlight specific details at different scales. Its shape makes it especially useful for identifying localized signals or anomalies within complex data, such as in geophysics or image analysis, by providing a multi-scale perspective that captures both broad trends and fine details.