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10 Threads found on edaboard.com: Qam Mod
I cant seem to find any information on how to do this problem, For a 16 qam mod signal how do i calculate EVM and MER if the noise in the signal has an RMS value of 0.4 and the phasor amplitude is 8v?
try harder doh click me. 8-O
Hi all I tryed to program it myself but when I multiply the quadrature component by sin I get values that very close to 0, ( I do not have a problem when I choose low Carrier Freq) it's looks like this : imag(Y(n))*A*sin(2*pi*Fc*t); while Y(n) is the quadrature component and Fc is 10000Hz. When I multiplying the inphase component by
please can anybody help me in this matlap problem the required :::: * genearte large no of bits using randint * modulate the data once with bpsk & then 16-qam * bpsk mod is 2*data-1 * after modulation u should loop on the data with step of 64's each time calculating their ifft * add the noise to (...)
please can anybody help me in this matlap problem the required :::: * genearte large no of bits using randint * modulate the data once with bpsk & then 16-qam * bpsk mod is 2*data-1 * after modulation u should loop on the data with step of 64's each time calculating their ifft * add the (...)
Hello everybody! after using modulate(mod,tx) funchtion, we get the Internal Time Vector, right? so, then how to plot in time domain this signal in Matlab? for example: hmod = modem.qammod(M); M = 16; %16-qam tx = randint(500,1,M); % (...)
That is incorrect. FM uses the frequency to transmit information so your Amp can be completely saturated and still change freq. Phase mod is closely related to FM. You might be thinking of qam. Where you do have Phase and Amplitude being used to send data. Cheers
I hv tried to correct some mistakes but i'm was not able to run this code Pls help me Thank u pls substitue :) by : ) %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % mod16qam.m %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% function Y = mod16qam(X,Fd,Fs,Eb); % 16-qam (...)
Analog phase modulation, i think you need a coherent receiver while FM does not. IN digital mod, most of them are phase modulation (PSK, QPSK, DQPSK, qam etc)
Look Intersil site for Broadband wireless modems, modulation up to 128qam, speed up to 238 Mbps: this time this is more integrated solution for high speed wireless modems .....