针对传统多输入多输出正交频分复用(MIMO-OFDM,Multiple Input Multiple Output Orthogonal Frequency Division Multiplex)系统中部分传输序列(PTS,Partial Transmit Sequence)算法的高计算复杂度、多边带信息的缺点,这里提出一种简化算法。该算法利用编码码字之间的关系,结合一种低计算复杂度的PTS算法,简化了寻找最佳扰码序列的运算过程,从而达到既降低计算复杂度又减少边带信息量的目的。性能分析结果表明,与传统方法相比,简化算法在降低复杂度的同时,不会影响系统的峰均功率比性能。 Aiming at the high computational complexity and the disadvantage of multi-band information in the Partial Transmit Sequence (PTS) algorithm in the traditional Multiple Input Multiple Output Orthogonal Frequency Division Multiplex (MIMO-OFDM) system, , Here proposed a simplified algorithm. The algorithm uses the relationship between codewords and a PTS algorithm with low computational complexity to simplify the process of searching for the best scrambling sequence, so as to reduce the computational complexity and reduce the amount of sideband information. The performance analysis results show that, compared with the traditional method, the simplified algorithm can reduce the complexity while not affecting the peak-to-average power ratio performance of the system.