| 一种改进的Link16信号的频率估计算法 |
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| 引用本文： | 贾可新,柳桃荣.一种改进的Link16信号的频率估计算法[J].航天电子对抗,2014(1):44-46. |
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| 作者姓名： | 贾可新 柳桃荣 |
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| 作者单位： | 中国电子科技集团公司第三十八研究所,安徽合肥230088 |
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| 摘 要： | 针对Link16信号的特点,可采用类似雷达脉冲参数估计的方法测量信号的特征参数。由于受MSK调制信号中符号0和1不平衡的影响,此方法对Link16信号载频和频偏的估计具有很大的偏差。为此提出了一种改进的载频和频偏估计的方法。仿真实验表明,这种改进的算法具有更高的参数估计精度。
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| 关 键 词： | Link信号 跳频 直接序列扩频 参数估计 |
An improved frequency estimate algorithm for Link16 signal |
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| Jia Kexin,Liu Taorong.An improved frequency estimate algorithm for Link16 signal[J].Aerospace Electronic Warfare,2014(1):44-46. |
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| Authors: | Jia Kexin Liu Taorong |
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| Institution: | (No. 38 Research Institute o{ CETC, Hefei 230088,Anhui,China) |
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| Abstract: | According to the characteristics of Link16 signal,its feature parameters can be estimated through radar pulse parameter measurement algorithm. Based on this idea, the estimates of Link16 signal carrier frequency and frequency offset have large bias error because of the imbalance of 0 and 1 symbol numbers in MSK signal. To solve this problem, a improved carrier frequency and frequency offset estimate algorithm is proposed. Simulation results show that the proposed algorithm has higher parameter estimate precision. |
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| Keywords: | Link16 signal frequency hopping direction sequence spread spectrum parameter estimate |
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