wjxcom
Full Member level 5
sd_4.mdl
Hi all: I use matlab to design a 4-order Sigma-Delta ADC, The modulator structure simulated using Simulink and the .m file can be found at the attachment.
Though I get the structure of the modulator, I do not know how to design the COFFOCITEN of the modulator, i.e. b11, b12, b21, b22, b31, b32, b33, b41, b42, b43 and d0, d1, d2, d3, these cofficient can be found at the file SD_4.mdl and the file SD4.m.
Because I do not know how to confirm these cofficients, I give some values to these cofficient optionally, but after runing the file SD4.m, I found that the result is so bad!
I think I can get help from this BBS.
Help me please, thanx!!!
Hi all: I use matlab to design a 4-order Sigma-Delta ADC, The modulator structure simulated using Simulink and the .m file can be found at the attachment.
Though I get the structure of the modulator, I do not know how to design the COFFOCITEN of the modulator, i.e. b11, b12, b21, b22, b31, b32, b33, b41, b42, b43 and d0, d1, d2, d3, these cofficient can be found at the file SD_4.mdl and the file SD4.m.
Because I do not know how to confirm these cofficients, I give some values to these cofficient optionally, but after runing the file SD4.m, I found that the result is so bad!
I think I can get help from this BBS.
Help me please, thanx!!!
