基于支持向量回归的放大器性能评价研究

Research on amplifier performance evaluation based on support vector regression machine

本文提出了基于支持向量回归(SVR)的放大器性能评价方法。确定放大器性能评价系统结构,以带通滤波放大器为实验研究对象。首先通过幅频特性测试仪(型号E4403B、规格1Hz^3GHz)采样,得到带通滤波器幅频特性数据集,然后进行SVR回归,得到带通滤波放大器幅频特性曲线的逼近函数,用该函数对性能指标中的4项参数进行测定。实验表明,该方法提高了参数测量的精度,适于用示波法测量电子产品性能的评价。

An evaluation method for amplifier performance based on Support Vector Machine is presented. The amplifier performance evaluation system structure is determined and BPF amplifier is used as the experiment object. Firstly, the sample dataset of the amplitude-frequency characteristic for the BPF is obtained using amplitude frequency characteristic test equipment （Model： E4403B, Spec： 1 Hz -3 GHz）, and then support vector regression is used to get the approach function of the amplitude-frequency characteristic of the BPF amplifier, and the obtained function is used to test the four performance parameters. Experimental results show that this method can improve the parameter test precision and is suitable for the evaluation of electronic product performance using oscilloscope.