| 基于平台验证的功率放大器数字预失真 |
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| 引用本文： | 邱绕谍,吴晓芳. 基于平台验证的功率放大器数字预失真[J]. 电子测量技术, 2012, 0(4): 102-104 |
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| 作者姓名： | 邱绕谍 吴晓芳 |
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| 作者单位： | 厦门大学信息科学与技术学院 厦门 361005 |
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| 摘 要： | 目前大部分数字预失真算法的研究都是基于计算机仿真,而没有在实际功率放大器上面验证,基于此用R&S公司的矢量信号源和频谱分析仪搭建了一个通用的功率放大器数字预失真算法验证平台。介绍了所采用的数字预失真算法,给出该测试平台搭建过程,用平台验证数字预失真算法在实际功率放大器上的性能。通过平台测试表明,功率放大器的邻道功率抑制比ACPR改善了10dB以上,从而有效提高了功率放大器的线性度。
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| 关 键 词： | 数字预失真 功率放大器 平台验证 |
Digital predistortion of power amplifier based on platform validation |
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| Qiu Raomou , Wu Xiaofang. Digital predistortion of power amplifier based on platform validation[J]. Electronic Measurement Technology, 2012, 0(4): 102-104 |
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| Authors: | Qiu Raomou Wu Xiaofang |
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| Affiliation: | Qiu Raomou Wu Xiaofang (School of Information Science and Technology, Xiamen University, Xiamen 361005) |
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| Abstract: | Recently,many digital pre-distortion algorithms are based on computer simulations, which are not verified by actual power amplifier. So a platform used to validate the algorithm is proposed which is based on R＆S＇s vertor signal generator and R＆-S＇s signal and specrum analyzer. First, the digital predistortion algorithm used in the paper is described. And then a detail describe of the platform is got. At last a experimental platform is built on this platform. The experimental results show that the ACPR of signal after PA improves more than 10 dB, so that the power amplifier＇s degree of linearity is enhanced. |
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| Keywords: | digital predistortion power amplifiers platform validation |
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