Qammod Matlab
Kahlil Algya
Y = qammod(___,Name=Value) specifies options using name-value arguments in addition to any of the input argument combinations from previous syntaxes. For example, InputType=bit sets the type of input signal to bits.
Assign the transmitted signal to the receive signal without applying any RF or channel impairments. With no impairments to distort the received signal, the demodulated matches the original signal. Demodulate symbols using hard decisions, and confirm correct signal demodulation.
To process input signal as binary elements, specify InputType='bit'. For binary inputs, the number of rows must be an integer multiple of log2(M). Groups of log2(M) bits are mapped onto a symbol, with the first bit representing the MSB and the last bit representing the LSB.
Output data type, specified as 'double', 'single', or a numerictype object. For more information on constructing these objects, see numerictype (Fixed-Point Designer). This argument determines the data type of the output modulated symbols and the data type used for intermediate computations. Output the fixed-point type as a signed, unscaled numerictype object in MATLAB simulation, and as a signed, scaled numerictype object during C code or MEX generation.
The qammod function enhances output data type offering by using the OutputDataType argument. Previously, the output data type was inherited from input data type or set to a fixed-point setting. This addition allows you to also specify the output data type as single or double.
To adjust the initial phase of the QAM-modulated data, instead use genqammod to offset the initial phase of the data being modulated, or you can multiply the qammod output by the desired initial phase:y = qammod(x,M) .* exp(1i*initPhase).