Scilab Function

gainplot - magnitude plot

Calling Sequence

gainplot(sl,fmin,fmax [,step] [,comments] [,f_unit])

gainplot(frq,db,phi [,comments] [,f_unit])

gainplot(frq, repf [,comments] [,f_unit])

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 (in dB) and phases (in degrees) corresponding to frq).

• repf : complex matrix. One row for each frequency response.

• f_unit : desired frequency unit.

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