matlab hat,Mexican hat (Ricker) wavelet

Mexican hat wavelet, also known as Ricker wavelet, is a mathematical function used in signal processing and wavelet analysis. It is often used in seismic exploration to estimate the location of underground oil and gas reserves.

In MATLAB, the Mexican hat wavelet can be generated using the "mexihat" function. This function takes one input argument, which is the number of points in the wavelet. The output is a vector containing the values of the wavelet.

Here's an example code snippet to generate and plot a Mexican hat wavelet in MATLAB:

N = 100;
t = linspace(-3, 3, N);
w = mexihat(t);
plot(t, w);
xlabel('Time');
ylabel('Amplitude');
title('Mexican Hat Wavelet');

This code generates a Mexican hat wavelet with 100 points, ranging from -3 to 3 in time. The resulting wavelet is then plotted on a graph with time on the x-axis and amplitude on the y-axis.