但是OFDM信号有高的峰值平均功率比，当它通过高功率放大器时会导致非线性失真，从而使得系统的性能下降。

But the OFDM signal has a large PAPR, which results in the significant nonlinear distortion when it passes through a HPA (high power amplifier), thereby the performances of the system descend.

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微波功率放大器是由森比亚大学和加州大学合作开发研制的。

These are being developed in a unique collaboration between Northumbria University and the University of California.

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