中国空间科学技术

中国空间科学技术

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风云二号星上转发器功率放大器的非线性分析与模拟

张伟,贾青   

  1. 西安空间无线电技术研究所 ,西安空间无线电技术研究所
  • 发布日期:1991-12-25

ANALYSIS AND SIMULATION OF NONLINEARITY OF TRANSPONDER ON BOARD GEOSTATIONARY METEOROLOGICAL SATELLITE

Zhang Wei Jia Qing (Xian Institute of Space Radio Technology)   

  • Online:1991-12-25

被引次数

1

摘要： 针对风云二号气象卫星星上转发器放大器的非线性特性及其带来的交调问题进行了分析。对实测给出的放大器单载波功率转移曲线的非线性数据,采用多项式分析和人工神经网络(ANN)模拟的方法进行了拟合和分析,并对所得结果作了比较。实验表明,文中提出的用ANN 概念和方法进行非线性分析与模拟,对解决非线性问题具有一定的理论意义和实际应用价值。

关键词: 功率放大器, 非线性分析, 数学模拟, 气象卫星

Abstract: This paper presents analysis of nonlinearity and its resulitedintermodulation(IM)effect of the amplifier of the satellite transponder.Polynomial approximation and Artificial Neural Network(ANN)simulationdata have been obtained from the singlecarrier power transfer curve of thetested amplifier.Comparisons have been made between the results,showingthat the nonlinearity analysis and simulation method presented in thisarticle using ANN concept is of theoretical importance and practical valueto the nonlinear problem resolution.