| 接收机非线性分析及测试 |
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| 引用本文： | 王吉滨,孟宪德,袁业术.接收机非线性分析及测试[J].系统工程与电子技术,2003,25(2):165-167. |
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| 作者姓名： | 王吉滨 孟宪德 袁业术 |
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| 作者单位： | 哈尔滨工业大学338信箱电子与通信工程系,黑龙江,哈尔滨,150001 |
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| 摘 要： | 在高频地波超视距雷达的设计研究中 ,接收机的非线性是影响整个雷达系统性能提高的一个重要因素。分析了接收机非线性失真产生的原因及其对整个雷达系统所产生的影响 ,并对三阶互调、三阶截点和 1dB压缩点这三个最常用的接收机线性度衡量指标作了严谨的分析。探讨了三阶截点与三阶互调以及三阶截点与 1dB压缩点之间的相互关系 ,给出了三阶截点的两种合理测试方法。
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| 关 键 词： | 非线性 三阶互调 三阶截点 1dB压缩点 |
| 文章编号： | 1001-506X(2003)02-0165-03 |
| 修稿时间： | 2001年11月5日 |
Analysis and Measurement of Receiver Nonlinearity |
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| WANG Ji-bin,MENG Xian-de,YUAN Ye-shu.Analysis and Measurement of Receiver Nonlinearity[J].System Engineering and Electronics,2003,25(2):165-167. |
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| Authors: | WANG Ji-bin MENG Xian-de YUAN Ye-shu |
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| Abstract: | The nonlinearity of the receiver is an important factor limiting the improvement of the overall performance of the radar system in the design of a high frequency ground-wave over-the-horizon radar (HFGWOTHR). The cause of the receiver nonlinearity and its influence on the whole radar system are analyzed in this paper. The definition of the third-order interception, third-order intercept point and 1dB compression point as well as their relationship are detailed. Based on this, two rational measurement methods for the third-order intercept point are brought forward. |
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| Keywords: | Nonlinearity Third-order interception Third-order intercept point 1dB compression point |
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