matlab get phase sorted by

relevance

Because after applied the filter, i tried to implement the filtered signal to Frequency domain, its magnitude response go down from 20 before filter until 0.

Instead of trying the whole thing at once and wondering why it doesn't work, you should test each of these two functions separately.

0 is called the unity-gain frequency or gain crossover frequency.

Because modeling errors are most damaging near the gain crossover frequency frequency where open-loop gain is 0dB , it also matters how much phase variation can be tolerated at this frequency.

The mass values used are 100g, 200g and 300g, and the pendulum lengths used are 3m, 2m and 1m respectively.

I have a little problem with the subject Theory of signal.

However, no matter what phase I use for the input, the graph always shows 3.

With the variable M you can change the number of periods of a sine wave in your input vector.

We were told to make amplitude and phase spectrum of cosinus in MATLAB, but we don't have results nor materials from our teachers, so we have to study from many different materials and you can imagine what this is like.

I would like to apologize for incorrect notions I might use, 'cause I'm not a native english speaker.