Though OFDM signals’ peak power is high,their emergence of probability is very small,so the clipping technique for PAPR reduction has been proved to be effective.
OFDM信号虽然最大峰值功率很高,但其出现的概率很低,因此,限幅法可以有效抑制信号峰均比。
参考来源 - 限幅技术对OFDM系统峰均比抑制的研究与仿真·2,447,543篇论文数据，部分数据来源于NoteExpress
限幅法是目前应用较为广泛的一类预畸变峰均比抑制算法，但其会引入额外的限幅噪声，从而对数据信号和导引符号造成干扰，恶化传输性能。
Clipping is a popular method to control the PAPR with distortions, but it introduces additional clipping noise, so as to distort the data and pilot symbols and degrade the system performance.
为了提高测试精度，在软件中采用算术平均滤波法和限幅滤波法相结合的方法来增强系统的抗干扰能力。
In order to improve testing precision and strengthen the anti-jamming ability of the system, the software has adopted arithmetic average filter and limit breadth filter.
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