code to calculate the bandwidth

Read through the document that describes how to calculate the bandwidth for a lowpass or bandpass signal. Exercise: Write a matlab function to calculate the bandwidth of a signal. The specific form of the function is to be: function [bw fc] = bandwidth(t,x,R,pass) where the input signal {t,x} is a time-domain signal, R is the spectral density ratio that defines the bandwidth, and pass is a string (‘low’ or ‘band’) that defines the signal type as either lowpass or bandpass. The output bw is the bandwidth and fc is the frequency cutoff(s) that defines the bandwidth. If the signal is lowpass, then bw is scalar and fc can be left empty. If the signal is bandpass, then fc is a 2-component vector where the bandwidth estimate is given by bw = fc(2)-fc(1). The following variable checks should be included in the function: • Ensure that the signal has non-zero power/energy • Ensure that the bandwidth ratio • Ensure that the signal type is either ‘low’ or ‘band’ (either capital or lower) It is expected that this function will be written to be computationally efficient and with proper documentation. This function is to be uploaded to your online library and can be graded using grade index ‘1’.