全数字解调下16QAM信号的频偏估计的TD-GG算法实现。TD-GG算法是在TD和GG算法基础上提出来的，有较大的频偏估计范围和较好的估计精度，很好的解决了传统的非数据辅助频偏估计算法中估计范围和精度不能兼顾的问题，而且这种算法易于实现。-Digital demodulation under the 16QAM signal frequency estimation TD-GG algorithm. TD-GG algorithm is based on the TD and the GG al

QAM频偏估计的算法，基于全数字接收机的相关理论，对各种数字估计算法进行了详细的描述和验证。-QAM frequency estimation algorithm, based on the theory of digital receivers, for a variety of digital estimation algorithm is described in detail and validated.