采用不同相位序列的选择性映射降低PAPR的效果是不同的。
Different phase sequences have different effects on reducing PAPR in SLM.
结果表明该方案在抑制峰均比方面呈现出很好的性能，对于高阶调制信号，如16QAM和64qam，它甚至达到选择性映射所能实现的最佳性能。
This scheme exhibits a good PAPR reduction performance, and for signals of high level modulation, such as 16qam and 64qam, it approaches the best performance of all SLM schemes.
在研究用选择性映射降法降低OFDM系统峰均功率比的基础上，提出了用m序列对SLM方法进行改进。
The paper first introduces the selected mapping method for the reduction of the peak-to-average power ratio of OFDM signals, and a method for improving SLM using m-sequence is put forward.
坐落于德克萨斯州的戴尔公司周三宣布，下个月其台式机客户可以选择性的安装第二块硬盘以自动映射备份数据。
Dell next month will offer customers the option of adding a second drive to some PCs to automatically mirror data, the Round Rock, Texas-based computer maker said Wednesday.
利用选择性映射降低PAPR：选择性映射是降低PAPR的一种有效的方法。
The main contents are as follows:1. Reducing PAPR based on using Selected mapping (SLM): Selected mapping is an effective method of reducing PAPR.
利用选择性映射降低PAPR：选择性映射是降低PAPR的一种有效的方法。
The main contents are as follows:1. Reducing PAPR based on using Selected mapping (SLM): Selected mapping is an effective method of reducing PAPR.
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