Hello my friends,
I'm Alberto Garcia from Spain and I want to make a simple QAM transmission system in
the SDF domain.
I've calculated the Channel Transfer Function values from the PRIMARY parameters table
of a telephone loop, like this:
FREC R(f) L(f) G(f) C(f)
1 326,7563 0,001849 0 1,56E-07
5 326,7563 0,001849 1,88E-09 1,56E-07
10 326,7563 0,001849 1,88E-09 1,56E-07
15 326,7563 0,001849 1,88E-09 1,56E-07
20 326,7563 0,001849 3,75E-09 1,56E-07
30 326,7563 0,001849 5,63E-09 1,56E-07
50 326,7563 0,001849 9,38E-09 1,56E-07
70 326,7563 0,001849 1,13E-08 1,56E-07
100 326,7563 0,001849 1,69E-08 1,56E-07
150 326,7563 0,001849 2,44E-08 1,56E-07
200 326,7563 0,001849 3,19E-08 1,56E-07
300 326,775 0,001849 4,5E-08 1,56E-07
500 326,7938 0,001848 7,5E-08 1,56E-07
700 326,7938 0,001848 1,01E-07 1,56E-07
1000 326,8313 0,001848 1,43E-07 1,56E-07
1500 326,8875 0,001847 2,06E-07 1,56E-07
2000 326,9438 0,001847 2,72E-07 1,56E-07
3000 327,075 0,001846 3,96E-07 1,56E-07
5000 327,4125 0,001844 6,39E-07 1,56E-07
7000 327,8063 0,001841 8,76E-07 1,56E-07
10000 328,5375 0,001838 1,22E-06 1,56E-07
15000 330,1125 0,001833 1,79E-06 1,56E-07
20000 332,0813 0,001827 2,34E-06 1,56E-07
30000 337,2375 0,001814 3,42E-06 1,56E-07
50000 351,825 0,00178 5,52E-06 1,56E-07
70000 370,7063 0,001757 7,56E-06 1,56E-07
100000 404,1563 0,001732 1,06E-05 1,56E-07
150000 464,1938 0,001698 1,54E-05 1,56E-07
200000 521,1563 0,001668 2,02E-05 1,56E-07
300000 625,1063 0,00162 2,95E-05 1,56E-07
500000 790,4438 0,001558 4,76E-05 1,56E-07
700000 924,825 0,001523 6,52E-05 1,56E-07
1000000 1094,231 0,001491 9,11E-05 1,56E-07
1500000 1327,331 0,001459 0,000133 1,56E-07
2000000 1523,85 0,00144 0,000174 1,56E-07
3000000 1853,494 0,001417 0,000255 1,56E-07
5000000 2376,206 0,001393 0,000411 1,56E-07
7000000 2801,119 0,001381 0,000563 1,56E-07
10000000 3336,825 0,00137 0,000786 1,56E-07
15000000 4073,925 0,00136 0,001149 1,56E-07
20000000 4695,338 0,001354 0,001504 1,56E-07
How can I translate this transfer function to a Ptolemy block to simulate a channel in
a SDF system?
Can I use a FIR block? How can I use it?
I hope you could solve my problem.
Thank you.
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