K-means digital analog optical fiber radio method

The invention relates to the technical field of radio, and discloses a K-means digital analog optical fiber radio method. The K-means digital analog optical fiber radio method comprises the following steps: S1, generating an analog RoF signal offline, wherein the analog RoF signal can be an OFDM (Orthogonal Frequency Division Multiplexing) signal or a DMT (Division Multiplexing) signal; s2, performing K-means non-uniform quantization on the analog RoF signal to generate a digital PS-(2R + 1)-QAM/PS-(2R + 1)-PAM symbol, wherein a quantization factor is R; s3, calculating a residual quantization error after the non-uniform quantization of the RoF signal; and S4, carrying out time domain interleaving on the digital quantization signal of the analog RoF signal and the residual analog quantization error signal to generate a time division multiplexing (TDM) KDA-RoF signal. According to the K-means digital simulation optical fiber radio method provided by the invention, the problems of large quantization noise, low