The watertank system block represents the plant in this control system and includes all of the system nonlinearities to specify the portion of the model to linearize, first open the linearization tab. Therefore, the overall bode plot approximation for a zero is the following. The phase bode plot is then constructed using straight lines that join these regions together. The plot displays the magnitude in db and phase in degrees of the system response as a function of frequency. If sys is a multiinput, multioutput mimo model, then bode produces an array of bode plots, each plot showing the frequency response of one io pair. This application deals with the asymptotic bode diagrams of trasfer function ws defined by numerator and denominator example.
Setting the phase matching options so that at 1 rads the phase is near 750 degrees yields the second bode plot. To do so, in the simulink window, in the apps gallery, click linearization manager to specify an analysis point for a signal, click the signal in the model. Asymptotic bode diagram file exchange matlab central. Introduccion a matlab y su aplicacion al analisis y control. Agregar titulo matlab title mathworks america latina. Please see figure 1 for an illustration of this approximation. Drawing bode plots the last bode plot you will ever make. The first bode plot has a phase of 45 degrees at a frequency of 1 rads.
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