plotting frequency response
Above is an excerpt from a textbook. My question is, why is that when we plot H(w), we need to think of it as a complex exponential???, can't we just plug in values for w and t, evaluate it, and then plot it?? (I thought that if we are going to plot H(w), we simply substitute the value of 'w' and assume t as constant and then plot the corresponding value to the w axis)... If we think of it as a complex exponential, the magnitude is 1. But what if H(w) is not of the form "", but it is in the form of . How can now we plot it? (It has no complex exponential on it so theres no way to regard for magnitude and phase.)
Above is an excerpt from a textbook. My question is, why is that when we plot H(w), we need to think of it as a complex exponential???, can't we just plug in values for w and t, evaluate it, and then plot it?? (I thought that if we are going to plot H(w), we simply substitute the value of 'w' and assume t as constant and then plot the corresponding value to the w axis)... If we think of it as a complex exponential, the magnitude is 1. But what if H(w) is not of the form "", but it is in the form of . How can now we plot it? (It has no complex exponential on it so theres no way to regard for magnitude and phase.)
No comments:
Post a Comment