3 Modulation

[@user-cd6fu5bx2d]

one of the best explanations i have seen so far. thanks

[@binwei2829]

Very clearly explained modulations, particularly for QAM.

[@ahmadmujtaba8138]

The best explanation on the planet

[@ДмитрийШироких-ш1х]

My 15 colleagues couldn't explain me how it exactly works. Thank you very much. Now i can explain it for them.

[@israelspraise]

Angel thank u for coming my way, you are indeed a TutorAngel. this breakdown is so revealing. thanks for imparting

[@alihoseiny350]

I realy enjoy from watching your video i was like you i saw 50 video and content in internet but now i found what is modulations.👌

[@SharanKChandrashekar]

This is simple and amazing. Modulation explained at it's best!

[@JohnnyDCactus]

i think you just saved me from failing my wireless communications module ! you really are an angel ! :)

[@navamias]

Best explanation ever heard on this topic.thanks a lot. Wish I could get whole topics taken by you.

[@utsasen1756]

Awesome teaching ❤️

[@tomrinkoff6628]

Thank you so mucccccccc, you are f amazing goddess!!! if you just knew how many videos I have been watching to understand this and finally you just simplified and being able to explain to someone who is new and is not engineer , yet at least , thank youuuuuuuu

[@VikramReddyAnapana]

Wonderful and crystal clear teaching ❤️

[@abazaabdelmageid774]

Brilliant explanation!

[@dannybjerring7188]

Damn wow this is a really clear explanation. I wish it was the first video i found. Thanks it really helped!

[@top10top54]

beautiful explanation

[@Rainbient]

Beautiful!!! Great explanation

[@ahmedsalman9906]

Thank you for the great explanation :)

[@memoryhero]

Jeeeesus, this is a brilliant video for beginners.

[@walterhuang5075]

Thank you for sharing this knowledge.

[@xhuo]

Nice video. Well explained. Thank you!

[@ryeofoatmeal]

ive been struggling with this basic theory !! now i understood thoroughly, tq ssoooo mucchhh :))

[@richardphillips2405]

Great video. I am trying to figure out the waveforms. Would a 01 be created with a sine wave that has traveled 45 degrees at the beginning of the symbol period, a 11 be created by a sine wave that has traveled 135 degrees at the beginning of the beginning of the symbol period, a 10 by a sine wave that has traveled 225 degrees at the beginning of the symbol period, and a 00 being created by a sine wave that has traveled 315 degrees at the beginning of the symbol period?

[@serone]

Very clear explanation, thank you very much

[@itaybm2]

This is a great video, thank you so much!

[@dave161256]

I have come across a different explanation of QAM where 2 waves are used (one sine wave and one Cosine wave - the Q comes from these being Pi/2 out of phase) and the points on the grid are the amplitudes of the 2 waves. I think there is BPSK where the amplitude changes from positive to negative).My question is, are there 2 versions of QAM - one using one wave and another using 2 waves?

[@Britishbaptist]

wonderful video thank you

[@glenmartin2437]

Thank you. A very clear explanation.

[@gb1520]

I made your subscription 1000 from 999

[@needsomehike]

very nicely explained. thank you very much!

[@imranebennageh7592]

very well explained ... I really appreciate Thanks!!!

[@s.gopinathsundararajan9894]

Good lecture to start with

[@sarperarslan3085]

Thank you for that video, it is very helpful

[@tunasahin4349]

I have a homework question. Can you support this topic?

[@kimdavidj2]

Amazing, thank you!

[@felixhou5166]

1.5h university course in only 10 minute, top!

[@khaledbmw99]

must of new devices have many internal anttena so there is 2 to 3 signal handling in the same time and also the fade signal is handling

[@techevangelist8373]

I think g doesn't support 64 QAM. But awesome presentation

[@TheGmr140]

very nice video

[@oojikarasuma1]

Holy shit this is good. Thank you so much

[@wildwestgaming8653]

Awesome

[@rajimordecai1099]

Finally got it. Thanks. by the way, love your accent

[@OllorbidaComment]

Very clear, thanks a lot ;)

[@MrAshwindersingh]

Omg osm i was so confusing so save my life thanku

[@hussamsoufi1825]

perfect! thanks!

[@elijahjflowers]

Thanks

[@crix75ita]

I love you ;-)

[@karimatrari5683]

I love yo 2 hhhh

[@enesboz2257]

%% Soru-5
close all;clear all;clc;
N=1e6;
Snr_dB = 0:1:7;
data=double(randn(1,N)>=0);
bpsk_mod = 2*data-1;
BER = zeros(1,length(Snr_dB));
i=1;
for k = Snr_dB
Snr_Lin = 10.^(k/10);
noiseSigma = sqrt(1./(2*Snr_Lin));
noise = noiseSigma*1/sqrt(2)*(randn(1,N/2)+1i*randn(1,N/2));
bpsk_mod = 1/sqrt(2)*(sign(randn(1,N/2))+1i*sign(randn(1,N/2)));
received = bpsk_mod + noise;
dataR=(sign(real(bpsk_mod))+1)/2;
dataI=(sign(imag(bpsk_mod))+1)/2;
estimatedBitsR=real(received)>=0;
estimatedBitsI=imag(received)>=0;
BER(i) = (sum(xor(dataR,estimatedBitsR))+sum(xor(dataI,estimatedBitsI)))/N;
i=i+1;
end
semilogy(Snr_dB,BER,'r*','LineWidth',2)
title('QPSK nin AWGN Kanaldaki Bit Hata Performans Egrisi');
xlabel('SNR (dB)');
ylabel('Bit Hata orani');
grid on;
hold on;
theoreticalBER = 0.5*erfc(sqrt(10.^(Snr_dB/10)));
semilogy(Snr_dB,theoreticalBER,'-','LineWidth',1)
legend('Benzetim','Teorik');
%SNR arttıkça bozulmalara karşı daha güçlü işaretler elde ediyoruz.
%%Snrarttıkça BER oranıda azalıyor.