I noticed that the hestimate matrix in the 2x1 ofdm alamouti communication has crazy values like:
sym: -0.0020 + j-0.0018 ks: -1.0000 + j+0.0000 eq: +282.3798 + j-254.7796 ==> -1.0000 + j+0.0000 sym: +0.0017 + j+0.0022 ks: +0.0000 + j+0.0000 eq: +811.7408 + j-449.4426 ==> +2.3752 + j+1.0470 sym: +0.0006 + j+0.0003 ks: +1.0000 + j+0.0000 eq: +1341.1019 + j-644.1057 ==> +1.0000 + j+0.0000 sym: +0.0001 + j+0.0005 ks: +0.0000 + j+0.0000 eq: +656.4164 + j-71.1795 ==> +0.0770 + j+0.3318 sym: -0.0001 + j-0.0020 ks: +1.0000 + j+0.0000 eq: -28.2691 + j+501.7466 ==> +1.0000 + j+0.0000 meanwhile when I use a 1x1 ofdm communication I have pretty regular values sym: -0.0254 + j-0.0084 ks: -1.0000 + j+0.0000 eq: +35.4218 + j-11.7727 ==> -1.0000 + j+0.0000 sym: +0.0004 + j+0.0049 ks: +0.0000 + j+0.0000 eq: +33.7460 + j-10.3629 ==> +0.0633 + j+0.1618 sym: +0.0289 + j+0.0081 ks: +1.0000 + j+0.0000 eq: +32.0702 + j-8.9531 ==> +1.0000 + j-0.0000 sym: -0.0011 + j+0.0022 ks: +0.0000 + j+0.0000 eq: +31.4286 + j-12.1152 ==> -0.0078 + j+0.0822 sym: +0.0261 + j+0.0129 ks: +1.0000 + j+0.0000 eq: +30.7870 + j-15.2773 ==> +1.0000 + j+0.0000 do you have any idea why this happens? Any help will be appreciated Vanessa _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
