gainplot
gainplot — magnitude plot
Calling sequence
gainplot(sl,fmin,fmax [,step] [,comments] )
gainplot(frq,db,phi [,comments])
gainplot(frq, repf [,comments])
Parameters
| sl | : list (syslin SIMO linear system). |
| fmin,fmax | : real scalars (frequency interval). |
| step | : real (discretization step (logarithmic scale)) |
| comments | : string |
| frq | : matrix (row by row frequencies) |
| db,phi | : matrices (magnitudes and phases corresponding to frq) |
| repf | : complex matrix. One row for each frequency response. |
Description
Same as Bode but plots only the magnitude.
Examples
s=poly(0,'s')
h=syslin('c',(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01))
gainplot(h,0.01,100,'(s^2+2*0.9*10*s+100)/(s^2+2*0.3*10.1*s+102.01)')
xbasc()
h1=h*syslin('c',(s^2+2*0.1*15.1*s+228.01)/(s^2+2*0.9*15*s+225))
gainplot([h1;h],0.01,100,['h1';'h'])
See also
bode, black, nyquist, freq, repfreq, g_margin, p_margin
