| ADS-B接收机S模式关键算法研究及实现 |
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| 引用本文： | 刘晓斌,何春,张超,朱姝.ADS-B接收机S模式关键算法研究及实现[J].现代雷达,2011,33(7):36-39. |
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| 作者姓名： | 刘晓斌 何春 张超 朱姝 |
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| 作者单位： | 电子科技大学电子科学技术研究院,成都,610054 |
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| 摘 要： | 分析了广播式自动相关监视(ADS-B)模式S接收机的数字信号处理算法,着重阐述了基于参考功率进行位和置信度检测、判定算法的原理。根据接收机的性能参数,提出了一种基于时域处理的置信度算法。该算法主要是利用通过对数字信号的功率幅度值进行对比,然后用一定规则分析对比结果,最终得到数据位的比特位和置信度的高低。文中还给出了置信度算法的可编程门阵列(FPGA)实现方案,采用Verilog HDL语言完成了其功能模块的设计,并进行了电路仿真、实验。实验结果表明,该算法设计合理,能够快速准确地实现ADS-B系统报头的比特位和置信度的检测及提取。
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| 关 键 词： | ADS-B 模式S 参考功率 比特位 置信度 |
Study and Realization on Mode S Key Algorithms of ADS-B Receiver |
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| LIU Xiao-bin,HE Chun,ZHANG Chao,ZHU Shu.Study and Realization on Mode S Key Algorithms of ADS-B Receiver[J].Modern Radar,2011,33(7):36-39. |
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| Authors: | LIU Xiao-bin HE Chun ZHANG Chao ZHU Shu |
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| Affiliation: | LIU Xiao-bin,HE Chun,ZHANG Chao,ZHU Shu (Research Institute of Electronic Science and Technology,University of Electronics Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | This paper analyzes the composition of ADS-B(Automatic Dependent Surveillance-Broadcast) based on Mode S receiver and signal processing algorithm,and especially focuses on detection and decision algorithm of bit and degree of confidence based on reference power,proposed confidence degree algorithm of time-domain processing according to the performance parameters of receiver.The algorithm is mainly used by the power of digital signal amplitude comparison,then analyzing and comparing the results with certain ... |
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| Keywords: | ADS-B Mode S reference power bits confidence |
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