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I'm working with ofdm in Matlab R2015a but facing error kindly help to resolve this

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Sajid Sarwar
Sajid Sarwar 2018-11-14
评论： Walter Roberson 2018-11-15
numSC = 128; % Number of OFDM subcarriers
cpLen = 32; % OFDM cyclic prefix length
ofdmMod = comm.OFDMModulator('FFTLength',numSC,'CyclicPrefixLength',cpLen);
ofdmDemod = comm.OFDMDemodulator('FFTLength',numSC,'CyclicPrefixLength',cpLen);
channel = comm.AWGNChannel('NoiseMethod','Variance', ...
'VarianceSource','Input port');
txSig1 = ofdmMod(st1); % where st1 is matrix of 117 by 1 complex double
but getting following error:
Array formation and parentheses-style indexing with objects of class 'comm.OFDMModulator' is not allowed. Use objects of
class 'comm.OFDMModulator' only as scalars or use a cell array.

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回答（1 个）

Walter Roberson
Walter Roberson 2018-11-15
R2015a did not support that syntax . You will need to step() the object passing in the object as the first parameter and the data as the second parameter .

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