www.gusucode.com > dsp 案例源码程序 matlab代码 > dsp/ReadComplexDataExample.m
%% Read Complex Data % Read complex data from a binary file using the |dsp.BinaryFileReader| % object. %% % Write a sequence of numbers to a binary file named |myfile.dat|. There is % no header. The data is a 2-by-4 matrix of double-precision values. % |fwrite| writes the data in a column-major format. That is, the 2-by-4 % matrix |[1 2 3 4; 9 10 11 12]| is written as |[1 9 2 10 3 11 4 12]| in % the binary file. fid = fopen('myfile.dat','w'); fwrite(fid,[1 2 3 4; 9 10 11 12],'double'); fclose(fid); %% % Specify the data to be complex using the |IsDataComplex| property. % The object reads the data as interleaved real and imaginary components. % The |SamplesPerFrame| and |NumChannel| properties specify the number of rows % and columns of the output data. The header structure is specified as % empty. reader = dsp.BinaryFileReader('myfile.dat','SamplesPerFrame',2,... 'NumChannels',2, 'IsDataComplex',true); s = struct([]); reader.HeaderStructure = s; data = reader(); display(data); release(reader); %% % Alternatively, if you do not specify the data to be complex, the reader % reads the data as a |SamplesPerFrame|-by- |NumChannel| matrix of real values. reader.IsDataComplex = false; data = reader(); display(data); release(reader);