...论文工作的主体,该文在前人工作的基础上[9,28]提出了一种OFDMA下行链路的实时动态子信道分配算法-试探算法(Heuristic Algorithm),用MATLAB语言建立了基于IEEE 802.16a协议的OFDMA仿真平台,并在该平台上仿真实现了该算法.
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它取代了2004开始试探的最初索引算法，它已经证明在处理大量和非结构化数据集时更有效。
It replaced the original indexing algorithms and heuristics in 2004, given its proven efficiency in processing very large, unstructured datasets.
最后，采用搜索试探的平滑算法，并加入一个增加或者消除周期的判断机制，对基音轨迹曲线中出现的个别错误进行纠正。
Finally, individual errors in pitch track are corrected by a smoothing method, in which a searching and tentative method together with a judge mechanism of adding or eliminating pitch period is used.
利用反向传播算法对网络进行试探性训练研究，得到了最佳参数。
The experimental research on the networks have been made by backpropagation arithmetic and some optimal parameters are obtained.
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