31. The Fast Fourier Transform process converts time-domain samples into frequency domain spectra. 32. Fourier transforms convert signals back and forth between the time domain and frequency domain . 33. The'spectrum'of frequency components is the frequency domain representation of the signal. 34. A succinct expression of the diffraction limit is given in the spatial-frequency domain . 35. Alternative DTS evaluation units deploy the method of Optical Frequency Domain Reflectometry ( OFDR ). 36. Each range sample is converted from time domain I / Q samples into frequency domain . 37. Thus, convolution in the time domain is equal to multiplication in the frequency domain . 38. The DFT is therefore said to be a frequency domain representation of the original input sequence. 39. In the frequency domain , QAM has a similar spectral pattern to DSB-SC modulation. 40. The methods of signal processing include time domain, frequency domain , and complex frequency domain.
