Key modules in modem are further researched, such as QAM, synchronization technology, AGC, trellis coded modulation, Viterbi Algorithm, adaptive equilazer etc.

• 研究调制解调器各个模块的相关理论知识，如QAM调制解调、码元同步、载波恢复、自动增益控制、网格编码调制、维特比(Viterbi)译码算法、自适应均衡等算法。