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| 北斗-罗兰C组合导航的ASF修正计算与研究 | |
| 引用本文： | 陈秀明,李文魁,陈永冰,许江宁,陈洪卿.北斗-罗兰C组合导航的ASF修正计算与研究[J].宇航计测技术,2009,29(3):26-30. |
| 作者姓名： | 陈秀明 李文魁 陈永冰 许江宁 陈洪卿 |
| 作者单位： | 1. 安徽新华学院,安徽,合肥230088;中国科学院国家授时中心,陕西,临潼710600 2. 中国人民解放军海军工程大学,湖北,武汉430033 3. 中国科学院国家授时中心,陕西,临潼710600 |
| 基金项目： | 国家自然科学基金项目 |
| 摘 要： | 介绍讨论了修正ASF的米林顿法和CLC数值积分法，并用MATLAB编程计算；用米林顿法计算的（SF＋ASF），与军标“长波地波传输信道计算方法”计算结果非常吻合；CLC数值积分法计算的结果与英国Paul Williams的结果也很吻合；而CLC数值积分法计算的（SF＋ASF）与米林顿法有较大差别，但在用以推求陆地路径ASF时，二者差别就很小。试验表明，CLC数值积分法有助于复杂地形路径的ASF修正计算。 |
| 关 键 词： | 罗兰C ASF修正 电波传播 数值积分法 |
Calculation & Research on ASF Correction of Loran-C |
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| CHEN Xiu-ming,LI Wen-kui,CHEN Yong-bing,XU Jiang-ning,CHEN Hong-qing.Calculation & Research on ASF Correction of Loran-C[J].Journal of Astronautic Metrology and Measurement,2009,29(3):26-30. | |
| Authors: | CHEN Xiu-ming LI Wen-kui CHEN Yong-bing XU Jiang-ning CHEN Hong-qing |
| Institution: | CHEN Xiu-ming LI Wen-kui CHEN Yong-bing XU Jiang-ning CHEN Hong-qing (1. Anhui Xinhua University,Anhui Hefei 230088; 2. School of Electrical and information Engineering, Navy Engineering University, Hubei Wuhan 430033; 3. National Time Service Center, Chinese Academy of Sciences,Shaxi Lintong 710600) |
| Abstract: | It has been introduced and discussed that the ASF calculation software in Millington method and in a numerical integral method named CLC way has been programmed with MATLAB technique. The（ SF ＋ ASF） got in this Millington method agrees with the result of “Computational Methods of LW Ground-wave Transmission Channels”. The result of（SF ＋ ASF）with CLC numerical integral method agrees with the result showed by Dr. Paul Williams＇ paper. There is larger difference in （ SF ＋ ASF） calculated by in CLC numerical integral method relative to in Millington method,but it has been discovered in further research that there is only a little difference in ASF calculated by them over land path. It has been showed in experiment that the CLC way is useful for ASF calculation in complex terrain paths. |
| Keywords: | Loran C ASF correction Radio propagation Numerical integral method |
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