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.
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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