Spectral Lines. Spectral Lines. Gives the frequency composition of the function Amplitude, phase of sinusoidal components Could provide information not found in time signal E.g. Pitch, noise components May help distinguish between signals E.g speech/speaker recognition.
DC Yes____ ao = ? No_____ ao = 0
Even____ an = ? bn = 0
Odd____ an = 0 bn = ?
Nether even nor odd ____ an = ? bn = ?
Yes_____ only odd harmonics
No______ all harmonics
Yes_____ proportional to1/n
No______ proportional to1/n2
Note ? means find that variable.
Comment on the general form of the Fourier Series coefficients [an and/or bn.]