Agilent Technologies FS2010 Manual de Serviço descarregar pdf (Página 288)

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280 Agilent Signal Generators Programming Guide

Creating and Downloading Waveform Files

Programming Examples

if FID == -1 error('Cannot Open File'); end

[internalWave,n] = fread(FID, 'uint16');% read the IQ file

fclose(FID);% close the file

internalWave = internalWave'; % Conver from column array to row array

% If on a PC swap the bytes back to Little Endian

if strcmp( computer, 'PCWIN' ) % Put the bytes into the correct order

internalWave= bitor(bitshift(internalWave,-8),bitshift(bitand(internalWave,255),8));

end

% convert unsigned to signed representation

internalWave = double(internalWave);

tmp = (internalWave > 32767.0) * 65536;

iqWave = (internalWave - tmp) ./ 32767; % and normalize the data

% De-Interleave the IQ data

IwaveIn = iqWave(1:2:n);

QwaveIn = iqWave(2:2:n);

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