16QAM的MATLAB仿真。包括包络检波，相干解调和非相干解调等。-16QAM in the MATLAB simulation. Including envelope detection, coherent detection and non-coherent demodulation, etc..

High-order modulation formats and advanced error correcting codes (ECC) are two promising techniques for improving the performance of ultrahigh-speed optical transport networks. In this paper, we present record receiver sensitivity for 107 Gb/s CO-

detailed discuss about the coherent square-16-QAM system based on IQ transmitters and Homodyne receivers with digital phase estimation