| 摘要: |
| 推导并分析了存在增益和相位跟踪等误差情况下,功率放大器前馈技术对三阶线性失真的改善情况,并从原理上论述了前馈技术的工作原理.前馈技术一般可将三阶互调降低10～30 dB,在新一代的抗干扰跳/扩频电台中有广泛应用. |
| 关键词: 抗干扰跳/扩频电台 前馈 线性失真 功率放大器 误差放大器 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:May 10, 2007 |
| 基金项目: |
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| Applications of Feed Forward Technique in Improving the Linearization of Power Amplifiers |
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| Abstract: |
| The improvement of the power amplifier feed forward technique to the IMD(Inter-modulation Distortion) with errors in gain and phase tracking is analysed.The working principle of feed forward technique is discussed.With the technique,the performance in IMD can be improved by 10~30dB,and it will be useful in the application of new generation anti-jamming DS/FH radios. |
| Key words: anti-jamming DS/FH radio,feed forward,linearization distortion,power amplifier,error amplifier, |
