| 塔康信标扩展数据广播抗噪声性能分析 |
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| 引用本文： | 孙博,冯永浩,赵颖辉,鲁凯彬.塔康信标扩展数据广播抗噪声性能分析[J].火力与指挥控制,2016(8):10-14. |
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| 作者姓名： | 孙博 冯永浩 赵颖辉 鲁凯彬 |
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| 作者单位： | 空军工程大学信息与导航学院,西安,710077 |
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| 基金项目： | 国家自然科学基金(61473308)；陕西省自然科学基础研究计划基金资助项目(2013JM8010) |
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| 摘 要： | 为扩展塔康信标数据广播功能,保持同导航功能的兼容性,分析了信标信号格式和系统要求,提出了基于OOK、PPM、DPSK的数据广播方法,将数据信号插在基准群之后播发。研究了高斯白噪声对3种数据广播信号的影响,分别推导出3种数据广播系统误码率公式。仿真结果表明:抗噪声性能从好到坏依次为OOK信号、DPSK信号、PPM信号;信噪比大于15 d B时,DPSK同PPM误码率基本相同,均小于6×10-5。同时,由于PPM方法数据广播速率高于OOK,实现复杂度低于DPSK,具有较好的综合性能。
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| 关 键 词： | 开关键控 脉冲位置调制 差分相移键控 塔康 误码率 |
Anti-noise Capability Analysis for Data-broadcast System Developed from Tacan Beacon |
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| Abstract: | In order to keep compatibility between data-broadcast and navigation function of Tacan beacon,signal structure and system requirements are analysed. Data-broadcast methods based on OOK,PPM and DPSK are proposed,in which data signal is inserted after reference pulse group. Influences of Gaussian noise on different data signals are studied,and relevant formulas are given out. Simulation results show that OOK signal has best anti-noise capability,and DPSK is better than PPM. DPSK and PPM have nearly the same bit error rate which is smaller than 6í10-5 when SNR is more than 15 dB. Therefore,PPM has better comprehensive property because of higher data rate than OOK and easier to achieve than DPSK. |
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| Keywords: | on-off-keying pulse position modulation differential phase-shift-keying TACAN bit error rate |
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