SDF Importer
We present the ‘SDF Importer’, a package developed to enable reading of HP/Agilent/Keysight Standard Data Format (SDF) files within MATLAB and Octave.
We provide a brief introduction to the package’s functions, a description of the structure of the extracted data, and step by step instruction on extracting and displaying single-trace and multi-trace datasets. Additionally an assessment of the importer against the Standard Data Format Utilities supplied with original HP equipment is performed.
Cite As
Justin Dinale (2021). SDF Importer (https://www.mathworks.com/matlabcentral/fileexchange/67513-sdf-importer), MATLAB Central File Exchange. Retrieved .
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Hi Mike and Utku,
Sorry for the late reply.
If you could both send me an email with the file you are experiencing issues with attached, I'll have a look at it.
My email address is in the function comments.
Regards,
Justin
I have the following problem with my SDF file:
Unable to perform assignment with 0 elements on the right-hand side.
Error in SDF_import>SDF_Interpret_Template (line 367)
eval(['retval.zz_' cnt.FieldName ' = cnt.Table{' ...
Error in SDF_import (line 121)
data.SDF_MEAS_HDR = SDF_Interpret_Template('SDF_MEAS_HDR',
file_raw,data.SDF_FILE_HDR.recordSize+3);
Error in SDF_demo (line 47)
[data, file_raw] = SDF_import('aaaa.DAT');
I have a similar problem with a file from a HP 35665A spectrum analyzer:
Error using eval
Undefined function or variable 'uint480'.
Error in SDF_import>SDF_uintX_vector (line 605)
eval(['retval = uint' num2str(bytes * 8) '(0);']);
Error in SDF_import>SDF_float_vector (line 875)
retval = double(typecast(SDF_uintX_vector(arg),'single'));
Error in SDF_import (line 202)
eval(['data.SDF_SCAN_STRUCT.scanVar(n,:) = SDF_' data.SDF_SCAN_STRUCT.zz_scanVar_type
It seems to be the same type of error that Bart Kus encountered - is it possible that the code didn't get updated?
Thanks for any assistance - Mike Ravicz
Bart,
I have made changes in v1.0.4 which should address the error you experienced. It was caused by an error in the way the arrays were reshaped just prior to line 195. Let me know how it goes.
HP 89441A time capture file doesn't work with this SDF importer:
>> SDF_import('A:/CAPT2.DAT')
Error using eval
Undefined function or variable 'uint40'.
Error in SDF_import>SDF_uintX_vector (line 595)
eval(['retval = uint' num2str(bytes * 8) '(0);']);
Error in SDF_import>SDF_float_vector (line 865)
retval = double(typecast(SDF_uintX_vector(arg),'single'));
Error in SDF_import (line 195)
eval(['data.SDF_SCAN_STRUCT.scanVar(n,:) = SDF_' data.SDF_SCAN_STRUCT.zz_scanVar_type ...
Please be aware that for some reason File Exchange is not uploading the new version of SDF_Import.
I have been in contact with Mathworks, and they are investigating the problem.
JBSAAR,
If you email me a sample multi-channel measurement file from the HP35670a Dynamic Signal Analyzer, I'll have a look at it. Contact details functions comments.
It does not appear to work for multi-channel measurements with data from an HP35670a Dynamic Signal Analyzer. I get the following error.
Error in SDF_import>SDF_Multi_ChannelY (line 1090)
tmp = data.SDF_YDATA_HDR.zz_raw_data(y_idx+1:y_idx+numBytes);
Error in SDF_import>SDF_YDATA_Process (line 425)
[data,y_idx] = SDF_Multi_ChannelY(data,n_ns,y_idx); % For some reason 'data' was 'tmp'
Error in SDF_import (line 237)
data = SDF_YDATA_Process(data,file_raw);
Single channel measurements work just fine.