中文摘要：

正交频分复用（OFDM）传输方法输出信号由多个子信道叠加而成，会产生较高的峰均比。提出一种基于余数系统的峰均比抑制方法，利用余数系统并行、余数小于对应余数基的特性，从信号前端入手控制OFDM传输信号的动态范围，有效利用放大器的线性动态范围，防止非线性失真的产生，达到无损抑制峰均比的目的。与传统的OFDM相比，峰均比抑制性能提高5 dB以上，并推导出该方法与OFDM传输带宽关系的表达式，分析得出在OFDM的信噪比大于0的前提下，该方法占用的传输带宽更小。

英文摘要：

The main limitation of Orthogonal Frequency Division Multiplexing （OFDM）-based transmission systems is the high Peak-to-Average Power Ratio （PAPR） of the transmitted signals. This paper proposes a residue number system （RNS） based OFDM transmission method. This method can achieve lossless PAPR reduction by using the features of RNS to control dynamic range of the transmitted signals and to avoid nonlinear distortion. Numerical results show that the proposed method offers PAPR performance improvement at least 5 dB and takes less transmission bandwidth when the SNR of OFDM is above 0 dB, compared with the original OFDM.