In the standard, seven key techniques are used to efficiently increase the data rate, including adaptive bandwidth, adaptive data transfer rate, multi-dimensional trellis encoding, shaping and shell mapping, super-constellation, equalization and pre-encoding, nonlinear encoding.
这七项技术为:自适应的带宽;自适应的数据传输速率;多维网格编码;整形技术和壳状映射器;超星座图技术;均衡和预测编码;非线性编码。
参考来源 - V.34发射机与接收机在DSP系统中的实现This paper according to the V.34 recommendation analyses the key technologies and algorithms, such as shell mapping, rotationally invariant code, 4-dimensional Trellis-coded modulation (TCM), pre-coding, and viterbi decoding algorithm etc, and presents some concrete application plans.
本文的主要任务就是根据V.34 的建议,分析其中的关键技术与算法,如壳形映射、旋转不变码、四维网格编码调制技术、预编码、以及相应的维特比译码和反预编码等,并结合实际,阐明一些具体的应用方案。
参考来源 - 基于V.34协议的调制解调器的分析与研究·2,447,543篇论文数据,部分数据来源于NoteExpress
应用推荐