Alphabet to binary translate

I have a project in optical communcitaion, were i want to send a laser thorugh polarised light to a photodioder, then to two DAQ:s, one will retrieve the signal and one wants to send, and that works. Now i want to transalte the one:s and zero:s do display on a screen, what the message is, the variable namne in workspace for the recorded signal is called DAQ_1, i seem to get a problem when i have the code for i = 1:lenght(DAQ_1), i get an error. What should i change in my code?

[Gabriel]

% Existing binMap and binaryToText function

binMap = {'0000001', 'A';

'0000010', 'B';

'0000011', 'C';

'0000100', 'D';

'0000101', 'E';

'0000110', 'F';

'0000111', 'G';

'0001000', 'H';

'0001001', 'I';

'0001010', 'J';

'0001011', 'K';

'0001100', 'L';

'0001101', 'M';

'0001110', 'N';

'0001111', 'O';

'0010000', 'P';

'0010001', 'Q';

'0010010', 'R';

'0010011', 'S';

'0010110', 'T';

'0010111', 'U';

'0011000', 'V';

'0011001', 'X';

'0011010', 'Y';

'0011011', 'Z'};

function translatedText = binaryToText(binarySequence, binMap)

index = find(strcmp(binMap(:,1), binarySequence));

if ~isempty(index)

translatedText = binMap{index, 2};

else

translatedText = ' ';

end

end

% Assume that DAQ_1 is the variable you have in the workspace with the binary sequences

% Loop over the received binary sequences and translate them to text

for i = 1:length(DAQ_1)

binarySequence = DAQ_1{i};

% Translate the binary sequence to text using the binaryToText function and binMap

translatedText = binaryToText(binarySequence, binMap);

% Display binary sequence and translation on the screen

disp(['Received binary sequence: ' binarySequence ', Translation: ' translatedText]);

% Here, you can perform additional actions with the translated data if needed

% ...

end

[Dyuman Joshi]

" the variable namne in workspace for the recorded signal is called DAQ_1, i seem to get a problem when i have the code for i = 1:lenght(DAQ_1), i get an error."

Please copy and paste the full error message, that means all of the red text.

"% Assume that DAQ_1 is the variable you have in the workspace with the binary sequences"

Yeah, that won't do. You will need data to run the code.

Is DAQ_1 supposed to be obtained as user input? Or is it obtained from another source?

Answer 1

[KALYAN ACHARJYA]

% Existing binMap and binaryToText function
binMap = {'0000001', 'A'; 
    '0000010', 'B';
    '0000011', 'C';
    '0000100', 'D';
    '0000101', 'E';
    '0000110', 'F';
    '0000111', 'G';
    '0001000', 'H';
    '0001001', 'I';
    '0001010', 'J';
    '0001011', 'K';
    '0001100', 'L';
    '0001101', 'M';
    '0001110', 'N';
    '0001111', 'O';
    '0010000', 'P';
    '0010001', 'Q';
    '0010010', 'R';
    '0010011', 'S';
    '0010110', 'T';
    '0010111', 'U';
    '0011000', 'V';
    '0011001', 'X';
    '0011010', 'Y';
    '0011011', 'Z'};
%%
% Assume that DAQ_1 is the variable you have in the workspace with the binary sequences
DAQ_1={'0011000','0010011','0001100'}; % Random Test Data
% Loop over the received binary sequences and translate them to text
for i = 1:length(DAQ_1)
    binarySequence = DAQ_1{i};
    
    % Translate the binary sequence to text using the binaryToText function and binMap
    translatedText = binaryToText(binarySequence, binMap);
    
    % Display binary sequence and translation on the screen
    disp(['Received binary sequence: ' binarySequence ', Translation: ' translatedText]);
    
    % Here, you can perform additional actions with the translated data if needed
    % ...
end

Received binary sequence: 0011000, Translation: V
Received binary sequence: 0010011, Translation: S
Received binary sequence: 0001100, Translation: L

%%  
function translatedText = binaryToText(binarySequence, binMap)
index = find(strcmp(binMap(:,1), binarySequence));
if ~isempty(index)
    translatedText = binMap{index, 2};
else
    translatedText = ' ';
end 
end

DAQ_1-You can validate the code by inputting random 7 bits in string format using an array structure, which could occur in real-time testing as well.