calculate energy and power of a signal in matlab

To calculate the energy and power of a signal in MATLAB, you can use the built-in functions sum and mean respectively.

Energy: To calculate the energy of a signal, you can simply compute the sum of the squared absolute values of each sample in the signal. Here's an example:

main.m
signal = [1, 2, 3, 4, 5]; % example signal
energy = sum(abs(signal).^2); % calculate energy
92 chars
3 lines

Power: To calculate the power of a signal, you can compute the mean of the squared absolute values of each sample in the signal. Here's an example:

main.m
signal = [1, 2, 3, 4, 5]; % example signal
power = mean(abs(signal).^2); % calculate power
91 chars
3 lines

The energy of a signal gives you the total magnitude of the signal, while the power represents the average magnitude of the signal over time.

Note that if your signal is in the form of a continuous function, you may need to discretize it before calculating energy and power.