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
On Wed, Nov 9, 2011 at 9:44 AM, Vanessa Gardellin
[email protected] wrote:
On Tue, Nov 8, 2011 at 4:51 AM, Vanessa Gardellin
maximum ratio and equal gain (obviously not Alamouti). I know we were closeI am trying to use the alamouti code implemented by trondeau.
working one?
In the code you never used “d_phase_lut”… so this explain a lot of
function to recenter it. The fine frequency correct has already been
Thank you
–
Skype: gardellin.vanessa
56124 Pisa - ITALY
–
Skype: gardellin.vanessa
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Vanessa GARDELLIN, Ph.D.
Researcher
Institute for Informatics and Telematics (IIT),
Italian National Research Council (CNR)
Via G. Moruzzi 1
56124 Pisa - ITALY
Phone: +390503153267
Room: B65/c
E-mail: [email protected]
WWW: http://www.iit.cnr.it/staff/vanessa.gardellin/
Skype: gardellin.vanessa