电离层多普勒接收机的设计与实验

陈彦龙; 张援农

doi:10.11728/cjss2015.05.574

电离层多普勒接收机的设计与实验

doi: 10.11728/cjss2015.05.574

陈彦龙^,,
张援农

武汉大学电子信息学院武汉 430072

基金项目: 国家自然科学基金项目资助(41474132)

详细信息

通讯作者:
陈彦龙,E-mail:woshismanyan@163.com

中图分类号: P352
计量
- 文章访问数: 877
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- 被引次数: 0
出版历程
- 收稿日期: 2014-11-06
- 修回日期: 2015-04-20
- 刊出日期: 2015-09-15

Design And Testing Of An Ionospheric Doppler Receiver

Chen Yanlong^,,
Zhang Yuannong

School of Electronic Information, Wuhan University, Wuhan 430072

摘要

摘要: 利用软件无线电技术设计了一种电离层多普勒接收机. 该接收机采用DSP, FPGA等数字芯片与PXI总线进行架构, 使用GPS作为接收机的时间和频率同步模块, 能够灵活设置系统参数. 实验接收来自中国蒲城陕西天文台的高频时间信号, 实时获取由于电离层扰动所产生的多普勒频率偏移信息. 使用通过MATLAB语言实现的信号处理软件平台, 对接收到的高频信号进行处理. 观测结果表明, 接收机能够分析电离层回波信号的多普勒频移随时间的变化, 是获取不同空间尺度电离层扰动信息的一种有效手段.
- 电离层 /
- 软件无线电 /
- 多普勒接收机
Abstract: As an important part of the Earth space environment, ionosphere variations have a very important impact on the daily life and activities and living of human beings. Ionosphere disturbance always manifests itself as a complex temporal and spatial variation process. Therefore, to strengthen the real-time monitoring of ionosphere disturbance and study the physical mechanism of the ionosphere disturbance is an important topic of space physics. Software defined radio technology is deployed to design an ionosphere Doppler receiver. Consisting of PXI bus and digital chips including DSP and FPGA, the receiver uses GPS as a module to synchronize time and frequency. Its system parameters can be set flexibly. Receiving high frequency signals from the Shanxi astronomical observatory, the receiver can get real-time ionosphere Doppler shift information caused by ionosphere disturbance. A signal processing software using MATLAB language processes the received high frequency signals. Observations show that the receiver is proved to be an effective means to obtain the ionosphere disturbance information in different spatial scales by data processing since it can analyze the change in Doppler shift of the echo signal of an ionosphere as time changes.
- Ionospheric /
- Software radio /
- Doppler receiver

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参考文献(17)

[1]	Wright J W, Pitteway M L V. High-resolution vector velocity determinations from the dynasonde[J]. J. Atmos. Terr. Phys., 1994, 56:961-977
[2]	Hung R J, Phan T, Smith R E. Observation of gravity waves during the extreme tornado outbreak of 3 April 1974[J]. J. Atmos. Terr. Phys., 1978, 40:831-835
[3]	Davies K. Ionospheric Radio[M]. London: Peter Peregrinus Limited, 1989
[4]	Long Xianling, Hou Jiechang. The problem on frequency variation of ionosphere reflection waves[J]. Chin. J. Geophys., 1979, 22(4):387-395. In Chinese (龙咸灵, 侯杰昌. 关于电离层反射电波频率变化的问题[J]. 地球物理学报, 1979, 22(4):387-395)
[5]	Xie Yixi. The Doppler frequency shift caused by the motion of the ionosphere over time[J]. Chin. J. Geophys., 1982, 25(4):295-303. In Chinese (谢益溪. 运动的随时间而变的电离层所引起的多普勒频移[J]. 地球物理学报, 1982, 25(4):295-303)
[6]	Ogawa T. Frequency variation in shortwave[J]. Prop. Proc. IRE., 1958, 46(2):1934-1939
[7]	Huang Yinnian, Chen Shengwen, Jiang Changjin. Development of Real Time Doppler Observation Instrument for Ionosphere[G]. Taiwan: Compilation of Telecommunication Research Report, 1981:257-280. In Chinese (黄胤年, 陈盛文, 江长晋. 多普勒电离层即时观测仪之研制[G]. 台湾: 电信研究报告汇编, 1981:257-280)
[8]	Li Libin, Wu Zhenhua, Ning Baiqi, Li Jun. Some technical problems in high frequency Doppler array[J]. Chin. J. Geophys., 1987:295-303. In Chinese (李利斌, 吴振华, 宁百齐, 李钧. 高频多普勒台阵中的若干技术问题[J]. 地球物理学报, 1987:560-564)
[9]	Xiao Zuo, Huo Hongxian, Zou Jiqing, Zhang Shuli. DQ-87 geophysical data acquisition and processing system[J]. Chin. J. Geophys., 1987, 30(6):653-658. In Chinese (肖佐, 霍宏暹, 邹积清, 张树礼. DQ-87型地球物理数据采集和处理系统[J]. 地球物理学报, 1987, 30(6):653-658)
[10]	Yuan Zhigang, Ning Baiqi, Yuan Hong. Real time detection and analysis of high frequency Doppler and arrival angle[J]. Chin. J. Radio Sci., 2001, 16(4):487-492. In Chinese (袁志刚, 宁百齐, 袁洪. 高频多普勒和到达角实时探测与分析[J]. 电波科学学报, 2001, 16(4):487-492)
[11]	Ding Meiyu, Gao Quanxi. Digital Signal Processing (3rd ed.)[M]. Xi'an: Xidian University Press, 2009. In Chinese (丁美玉, 高西全. 数字信号处理(第三版)[M]. 西安: 西安电子科技大学出版社, 2009)
[12]	Dai Yaosen. Simultaneous measurement of multipath broadening and Doppler broadening[J]. J. Commun., 1982(7):89-91. In Chinese (戴耀森. 实施地同时测量多径展宽与多普勒展宽的技术[J]. 通信学报, 1982(7):89-91)
[13]	Shen Qiqi, Zhu Desheng. Short Wave Communication[M]. Xi'an: Xidian University Press, 1989. In Chinese (沈琪琪, 朱德生. 短波通信[M]. 西安: 西安电子科技大学出版社, 1989)
[14]	Jayachandran B, Balan N, Nampoothiri S P, Rao P B. HF Doppler observations of vertical plasma drifts in the evening F region at the equator[J]. J. Geophys. Res., 1987, 92(A10):11253-11256
[15]	Xiao Zuo, Liu Kaijun, Zhang Donghe. Some typical records of ionospheric Doppler shift and their significance in the study of ionospheric morphology[J]. Chin. J. Space Sci., 2002, 22(4):321-329. In Chinese (肖佐, 刘凯军, 张东和. 典型电离层多普勒记录及其讨论[J]. 空间科学学报, 2002, 22(4):321-329)
[16]	Jayachandran B, Balan N, Rao P, Sastri J, Bailey G. HF Doppler and ionosonde observations on the onset conditions of equatorial spread F[J]. J. Geophys. Res., 1993, 98(A8):13741-13750
[17]	Georges T M. HF Doppler studies of traveling ionospheric disturbances[J]. J. Atmos. Terr. Phys., 1968, 30(5):735-746