本文提出了一种用于正交频分复用（OFDM）系统中由大功率放大器引起的非线性失真的有效的数字自适应补偿方法。

The paper presents an efficient digital adaptive method compensating for nonlinear distortions caused by a high-power amplifier (HPA) in orthogonal frequency division multiplexing(OFDM) system.

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功率放大器模组设计，使用负载牵引特性原理功率放大器被合并使用三分贝正交耦合器。

Power amplifier Modules were designed using Push-Pull BJT power amplifiers that were combined using 3db Quadrature couplers.

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接收机的每个通道都由高频放大器、中频放大、中频采样、数字正交器组成，另外还有DDS信号产生和频率激励源用来形成雷达发射机所需的S波段脉冲调制激励信号。

Each of them is composed of high frequency amplifier, intermediate frequency amplifier and sampling, digital phase uprightness intersector, DDS and the S band signal inspirator for the transmitter.

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