I am testing the "channel model" module, and I have created the following flow diagram:
As shown in the flow diagram, I set up a signal source to input the "channel model" as (0,1,2,3,...,198,199), a total of two hundred numbers, but I check the "channel model" However, the output becomes a bunch of other numbers (3.00001+3.0000052i,...), a total of 192, which is 8 less than the input. I have two problems here:
First: The noise voltage, time offset, frequency offset, and multipath of my channel model do not exist (everything is the default). In theory, there is no noise at all, so why are the input and output signals different?
Second: Why is the number of inputs and outputs different? Does the "channel model" itself perform certain operations on the input?
Can someone explain it to me? thanks.
Sincerely