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Characteristics of simplified frequency-domain Volterra series based S-mode receiver
- Telecommunications Science Vol. 38, Issue 6, Pages: 100-110(2022)
- 作者机构：
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DOI：10.11959/j.issn.1000-0801.2022153
CLC： TN851-
Published Online：2022-06，
Published：20 June 2022
- 稿件说明：
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Fengxun GONG, Jiankun LI. Characteristics of simplified frequency-domain Volterra series based S-mode receiver[J]. Telecommunications science, 2022, 38(6): 100-110.
Fengxun GONG, Jiankun LI. Characteristics of simplified frequency-domain Volterra series based S-mode receiver[J]. Telecommunications science, 2022, 38(6): 100-110. DOI： 10.11959/j.issn.1000-0801.2022153.
摘要
采用简化频域Volterra级数研究分析输入信号为S模式应答脉冲的多点定位（multilateration，MLAT）系统的非线性特性。首先以典型超外差接收系统为例，探索建立多点定位系统的简化频域Volterra级数模型和误差率模型；其次，研究建立基于核函数的S模式应答脉冲信号模型；最后分析输入基于核函数的S模式信号时，简化频域Volterra级数的S模式信号接收系统模型误差率。仿真结果表明，当输入基于核函数的S模式信号时，信噪比为15 dB的简化频域Volterra级数的接收系统模型误差率最小在23.23%以下；输入信噪比为16.25 dB的实际S模式测试信号时，该模型误差率最小在22%以下，小于误差率阈值。说明简化频域Volterra级数的接收系统模型可以准确地描述 S 模式信号接收系统的输出特性，为多点定位系统前导脉冲到达时间戳的识别奠定理论基础。
Abstract
The nonlinear characteristics of multilateration(MLAT) system were analyzed by simplified frequency-domain Volterra series when the S-mode signal response pulse was input.Firstly
take the typical super heterodyne receiver system for example
the model based on simplified frequency-domain Volterra series and error rate model of MLAT system were explored and created.Secondly
the S-mode response pulse signal model based on kernel function was researched and established.Finally
the model error rate of S-mode signal receiver system based on simplified frequency-domain Volterra series was analyzed when the S-mode signal based on kernel function was input.The results show that the minimum error rate of the receiver system based on 15 dB SNR simplified frequency-domain Volterra series is less than 23.23% when the S-mode signal based on kernel function is input.When the actual S-mode test signal with 16.25 dB SNR is input
the minimum error rate of the model is less than 22%
which is less than the error rate threshold.It shows that the receiver system model based on simplified frequency-domain Volterra series can accurately describe the characteristics of S-mode signal receiver system
which provides the theoretical foundation for the identification of preamble arrival timestamp in MLAT system.
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references
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