摘要
介绍了一种新的用来衡量信号特性的参数-立方制系数(cubic metric),分析了正交频分复用(OFDM)信号的峰值平均功率比,立方制系数及互补累积分布函数(CCDF)曲线。仿真并比较了OFDM调制信号激励下功放的非线性指标,最后结合实际所做的某OFDM系统中的射频硬件系统作了对比。
A novel parameter, cubic metric is introduced to weigh the character of signals. It analyzes the peak average ratio and complementary cumulative distribution curve of the Orthogonal Frequency Division Multiplexing signal used in an OFDM system. The nonlinearity specifications of power amplifier excited by OFDM modulated signal are simulated and compared in contrast to the practical OFDM radio frequency hardware system.
出处
《计算机与数字工程》
2006年第8期46-49,共4页
Computer & Digital Engineering
