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yes but this is not the function i need :)
I programmed a Lowpass filter as follows:
num = 880; % Numerator
denum = poly(-880); % Denumerator
sys = tf(num,denum); % gives the transfer function for the lowpass
bode(sys); % Bode-Diagramme of the Lowpass-filter
So my question is: how to apply...
Hi everyone!
I am currently working on a simulation of a 16 QAM transmission and have some problems attenuating a specific frequency!
The Transmitter is fine, transmission over air interface works also fine! After that I bring the signal back to the baseband representation and now want to...
Re: 16QAM modulation
hmm ok thats the same as multiplying with exp(2*pi*fc*t) and then splittin up into real and imaginary part ...
ok i transmitted xI*cos(2*pi*fc*t)-xQ*sin(2*pi*fc*t)
so at the receiver I get for example for the I-Component...
Re: 16QAM modulation
Yes exactly! I have the same! So my last question is:
On the Receiver side I have only to multiply the received signal with exp(-2*pi*fc*t) and split it up into imaginary and real part to get Q btw. I stream?
Re: 16QAM modulation
Thanks for your help! hmm but normally the inphase component is multiplied with a cosine and the Quadrature comp. with a sine and then added up ... so you say I should add I and Q comp. up and multiply it with exp(2*pi*fc*t)? (Transmitter side)
Hello everyone,
i have a problem with 16QAM transmission policy :)
I think my problem is that I don´t understand correctly the transmission of 16QAM. I am currently working on a 16QAM transmission in Matlab and have made nearly everything on the Transmitter side.
So I generated a bit stream...
Re: distinguish bit pattern
the bit pattern is transmitted over the serial IF (pc to fpga board) with a baud rate of 38900! Do you know smthg in VHDL where I can distinguish my input like this:
if input[0] == 0
\\command
elseif input[1:7] == 101110
.
.
.
Thanks
distinguish bit pattern
Hi!
I want to programme a FSM (finite state machine) and the only problem left is, that I have to distinguish a certain bit pattern. How can I do this in VHDL? I only want to distinguish the first bit and in the next step the following 5 bits (in 2 steps)
For example...
Hi all! I got some real troubles when I wanted to interface the RS232 port! I am currently having a usb (pc) to rs232 converter (fpga board) and I want to read and write some special registers. The problem is that the FPGA-board has only TX and RX so no handshake can be made ...
Now I got a...
usb-rs232 and vice versa
Hi all! I got some real troubles when I wanted to interface the RS232 port! I am currently having a usb (pc) to rs232 converter (fpga board) and I want to read and write some special registers. The problem is that the FPGA-board has only TX and RX so no handshake can be...
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