How can I create an instance of a rayleigh channel using comm.RayleighChannel?

How can I create an instance of a rayleigh channel using comm.RayleighChannel? I would like to give the number of path delays and corresponding path gains to generat a channel coefficient WITHOUT passing a signal through it. Earlier, this was possible using the below code:

H = rayleighchan(ts,doppler,PathDelays, AvgPathGains);

But I'm unable to do it using comm.RayleighChannel. Please help.

Thanks!

Answer 1

[Ashutosh Singh Baghel]

Hi Mia,

I understand you wish to create a rayleigh channel using comm.RayleighChannel. Please find below an example to do so. Here some test values are assumed for this particular example.

rayleighchan = comm.RayleighChannel( ...
    'SampleRate',10e3, ...
    'PathDelays',[0 1.5e-4], ...
    'AveragePathGains',[2 3], ...
    'NormalizePathGains',true, ...
    'MaximumDopplerShift',30, ...
    'DopplerSpectrum',{doppler('Gaussian',0.6),doppler('Flat')}, ...
    'RandomStream','mt19937ar with seed', ...
    'Seed',22, ...
    'PathGainsOutputPort',true)

rayleighchan = 
  comm.RayleighChannel with properties:

             SampleRate: 10000
             PathDelays: [0 1.5000e-04]
       AveragePathGains: [2 3]
     NormalizePathGains: true
    MaximumDopplerShift: 30
        DopplerSpectrum: {[1×1 struct]  [1×1 struct]}
       ChannelFiltering: true
    PathGainsOutputPort: true

  Show all properties

Refer to the MATLAB Documentation link on "Rayleigh Channel" for further information.