Why do I receive an "Input sample period must be greater than zero" error when using the "Multipath Rayleigh Fading Channel" block in the Communications Blockset?

Question

MathWorks Support Team 2009-6-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/95679-why-do-i-receive-an-input-sample-period-must-be-greater-than-zero-error-when-using-the-multipath

I have a complex signal that is connected to the "Multipath Rayleigh Fading Channel" block via a "To Frame" block. If I try to execute the model, I receive the following error:

 Error in 'untitled1/Multipath Rayleigh Fading Channel/Rayleigh Fading Components' while executing C MEX S-function 'scomintfiltgauss', (mdlSetWorkWidths), at time 0. MATLAB error message:
 Input sample period must be greater than zero.

请先登录，再回答此问题。

Answer 1

MathWorks Support Team 2009-6-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/95679-why-do-i-receive-an-input-sample-period-must-be-greater-than-zero-error-when-using-the-multipath#answer_105032

This enhancement has been incorporated in Release 2006a (R2006a). For previous product releases, read below for any possible workarounds:

Documentation on the "Multipath Rayleigh Fading Channel" is missing information on the sample time constraints on the input signal. Input signal to the "Multipath Rayleigh Fading Channel" must have a discrete sample time greater than 0. The signal cannot have a continuous sample time.

Setting the sample time of the source of the signal to a discrete sample time (Ts >0) will resolve this issue.