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Hi,
I am trying to expand the program that I found here about encoder and decoder. I want to plot the ber vs snr. I tried with biterr function but I take as error this:
Function 'log' is not defined for values of class 'uint8'.
???Error in ==> log at 15
[varargout{1:nargout}] = builtin('log', varargin{:});
Error in ==> biterr at 190
sym_len = floor( log(tmp) / log(2) ) + 1;
Also an error in the case of AWGN, I suppose that and this caused from the same reason, because the output is in unit8 format, but if I change it the programm does not work properly.
??? Error using ==> plus
Integers can only be combined with integers of the same class, or scalar doubles.
Error in ==> RS_test_code at 15
cnoisy = data_enc + noise; % Add noise to the code.
I doing the RS (255, 191) now, and need implement it with the matlab code and VHDL code. Can any one upload the Reed solomon Code(matlab code or VHDL code with explantion) for encoder and decoder.
p/s: I also dun understood how to get D^8+D^4+D^3+D^2+1, hope u all can explain or upload any online ebook about this too.
how to create Non return zero level(NRZ-L) and non return zero mark (NRZ-M) waveforms using vhdl? i could not think the solution....can you give me the vhdl code at my email esa_screen@yahoo.com.sg I'm using Quartus II software. I really need help from everybody who knows it. Your help is really appreciate.
can anyone have program for soft decision decoding???
GS algorithm,using the Koetter algorithm for interpolation and the Roth-Ruckenstein algorithm to factor the resulting polynomial,
pls send to dzjian@126.com,
thank you,very very much much
Added after 1 minutes:
can anyone have program in matlab for soft decision decoding???
GS algorithm,using the Koetter algorithm for interpolation and the Roth-Ruckenstein algorithm to factor the resulting polynomial,
pls send to dzjian(at)126.com,
thank you,very very much much
hello
i m new to this forum
and i need Reed solomon matlab codes for encoder and decoder
can anyone email me on" kamran_haleem@yahoo.com".
or tell me how to earn points so that i can download that.
Hi,
If I use the fuction rsgenpoly in the Matlab,
r=rsgenpoly(255,239) to generate the polynomial for RS (255,239). I get return value as:r = GF(2^8) array. Primitive polynomial = D^8+D^4+D^3+D^2+1 (285 decimal) Array elements =
Columns 1 through 10
1 118 52 103 31 104 126 187 232 17
Columns 11 through 17
56 183 49 100 81 44 79
If I use a different tool to generate the polynomial , the tool is at the website of **broken link removed**
I got the return value as:
G(x)=x^16+59x^15+13x^14+104x^13+189x^12+68x^11+209x^10+30x^9+8x^8
+163x^6+41x^5+229x^4+98x^3+50x^2+36x+59
Both method are use the same field generator as P(x)=x^8+x^4+x^3+x^2+1
Now My Question is:
1. why they come out two results and if both are equal
2. which set of value should be use to do the RS encoder.
can anyone have program for soft decision decoding???
GS algorithm,using the Koetter algorithm for interpolation and the Roth-Ruckenstein algorithm to factor the resulting polynomial,
pls send to dzjian(at)126.com,
thank you,very very much much
can anyone explain me what BCH(32,24) or BCH(64,56) mean.. I am working on verilog code for this.. my mentor expects me to get the result as follows
(HEX)
MSG - 000F02
CODE - D0000F02
The BCH codes consists of code n=size and k=dimension CHN(n,k)
Your teacher request for ENCODING a word or message ..so he gives you a word and you should provide the enconded word or message .
Is easy to see in the given examples that the encoding is of type SYSTEMATIC
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