plot

Plot nonlinearity AM/AM and AM/PM characteristics

Since R2021a

Syntax

plot(mnl)

plot(mnl,'Gain')

mnlplot = plot(___)

Description

plot(mnl) plots the output signal power and the phase change versus the input signal power. This syntax is equivalent to plot(mnl,'Pout').

plot(mnl,'Gain') plots the gain and the phase change versus the input signal power.

mnlplot = plot(___) returns a handle to the figure containing the generated plot. Specify an input argument combination from any of the previous syntaxes.

Examples

Plot Output Response for Amplifier Model

Plot the amplifier output power and phase response for various model methods.

Create a memoryless nonlinearity impairment System object™ for each of the nonlinearity modeling methods.

ampCubicPoly= comm.MemorylessNonlinearity('Method','Cubic polynomial');
ampHyperbolic = comm.MemorylessNonlinearity('Method','Hyperbolic tangent');
ampGhorbani = comm.MemorylessNonlinearity('Method','Ghorbani model');
ampSaleh = comm.MemorylessNonlinearity('Method','Saleh model');
ampModRapp = comm.MemorylessNonlinearity('Method','Modified Rapp model');
ampLookupTable = comm.MemorylessNonlinearity('Method','Lookup table','ReferenceImpedance',50);

Use the plot object function of the comm.MemorylessNonlinearity System object to show the response curves for the output power and phase for the each of the amplifier models.

plot(ampCubicPoly);

plot(ampHyperbolic);

plot(ampSaleh);

plot(ampLookupTable);

plot(ampGhorbani);

plot(ampModRapp);

Input Arguments

mnl — Memoryless nonlinearity

comm.Memoryless Nonlinearity System object™

Memoryless nonlinearity, specified as a comm.MemorylessNonlinearity System object.

Output Arguments

mnlplot — Plot figure

Figure object

Plot figure, returned as a Figure object created using the figure function. Use the Figure object to query or modify properties of the figure after it is created.

Version History

Introduced in R2021a