| 互补编码导航信号的一种设计方法 |
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| 引用本文： | 朱兆达.互补编码导航信号的一种设计方法[J].航空学报,1986,7(4):371-376. |
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| 作者姓名： | 朱兆达 |
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| 作者单位： | 南京航空学院 |
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| 摘 要： | 本文叙述了互补编码导航信号的一种设计方法。证明了按此法构成的编码可保证时分多台导航系统在信号搜索过程中能自动识别主、副台,在信号跟踪过程中能抑制多次反射天波对地波的干扰。并给出了编码实例。
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| 收稿时间： | 1985-02-20; |
A METHOD FOR DESIGNING COMPLEMENTARY CODED NAVIGATION SIGNALS |
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| Zhu Zhaoda.A METHOD FOR DESIGNING COMPLEMENTARY CODED NAVIGATION SIGNALS[J].Acta Aeronautica et Astronautica Sinica,1986,7(4):371-376. |
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| Authors: | Zhu Zhaoda |
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| Institution: | Nanjing Aeronautical Institute |
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| Abstract: | A method for designing complementary coded navigation signals on the basis of analyzing the Loran-C codes （Ref. 4 ） is presented in this paper. The method is described as follows: 1. Taking a pair of m-element complementary codes. 2. Concatenating the m-element codes to form a pair of 2m-element codes. 3. Interleaving the 2m-element codes to form a pair of 4m-element codes:A and B. 4. Taking A and B, or A and B, or Aand B,or A and B as the master station codes M and M". 5. Taking M" and M', or M" and M' as the slave station codes S' and S". By using such codes, automatic master and slave station search and identification, and multihop skywave rejection may be achieved easily in a time sharing multistation navigation system. The method is proven in detail. Examples of codes, including the Loran-C codes, are also given. |
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