TABLE OF CONTENTS This chapter is devoted to engineering applications using appropriate Simulink blocks to illustrate the application of the blocks in the libraries which we described in Chapters 2 through 18. Most of these applications may be considered components or subsystems of large systems such as the demos provided by Simulink. Some of these applications describe some of the new blocks added to the latest Simulink revision.
One of the recently added Simulink blocks is the Idealized ADC Quantizer. Figure 19.1 shows how this block can be used to discretize a continuous-time signal such as a clock. The Function Block Parameters dialog box provides a detailed description for this block.
The settings specified for the Idealized ADC Quantizer are noted in Figure 19.1. The output data types for the Clock and the Idealized ADC Quantizer blocks are specified as double. The input and output waveforms are shown in Figure 19.2.
Suppose that a continuous-time signal x(t) is bandlimited with bandwidth B, and its Fourier transform X( ?) is zero for ? > B. The Sampling Theorem states that if the sampling frequency ? S is equal or greater than 2B, the signal x(t) can be recover entirely from the sampled signal x S(t) by applying x S(t) to an ideal lowpass filter with bandwidth B.
