The '<' operator is reserved for future use
This was not supported in PowerShell v1 [and as of v5, it's still not...]
An example workaround is:
Get-Content test.full | .\test_cfdp.exe | tee test.log
Also try:
cmd /c '.\test_cfdp.exe < test.full | tee test.log'
I have switched to linux shell and it works
If you want to run this command more times, you can just make a *.bat file with the original syntax. That's another solution.