基于各向异性分布的非相干散射雷达谱仿真

徐彬; 王占阁; 许正文; 吴健; 薛昆

doi:10.11728/cjss2017.06.710

基于各向异性分布的非相干散射雷达谱仿真

doi: 10.11728/cjss2017.06.710

中国电波传播研究所电波信息环境特性及模化技术国防科技重点实验室青岛 266107

基金项目:

国家自然科学基金项目（41004065，41104108，61601419，11672068）和电波环境特性及模化技术重点实验室基金项目共同资助

详细信息

作者简介:
徐彬,jasur82@163.com

中图分类号: P352
计量
- 文章访问数: 828
- HTML全文浏览量: 35
- PDF下载量: 669
- 被引次数: 0
出版历程
- 收稿日期: 2016-10-18
- 修回日期: 2017-03-31
- 刊出日期: 2017-11-15

Simulation of Incoherent Scatter Radar Spectra Based on Inhomogeneous Distribution

National Key Laboratory of Electromagnetic Environment, China Research Institute ofRadio Wave Propagation, Qingdao 266107

摘要

摘要: 基于离子在加热条件下呈现各向异性分布的假设，建立离子声波激发条件下非平衡态的三维离子速度分布函数模型，给出任意视线方向上非相干散射谱的计算方法，分析幅度修正因子、离子声速粒子组分、雷达波束方向与磁场方向夹角及温度各向异性对功率谱的影响.研究结果可以解释离子线谱超过一个量级的幅度增强现象和上行离子线强于下行离子线的不对称现象，对加热强扰动电离层条件下的等离子体参数反演具有重要意义.
- 各向异性分布 /
- 离子声波激发 /
- 非相干散射谱 /
- 离子体参数反演
Abstract: Based on the theoretical hypothesis of ion inhomogeneous distribution during ionospheric heating, the model of non-equilibrium 3D velocity distribution of the ions with acoustic frequency exciting is built, and the calculation method of incoherent scatter spectra with arbitrary line of sight are presented. The effect of the amplitude modifying factor, particle component of acoustic frequency, the angle between radar beam and magnetic field direction, and temperature inhomogeneous on power spectra are analyzed. The results can perfectly explain amplitude enhancement of ion line that is more than an order of magnitude, and asymmetry phenomena when the ascending ion line is stronger than the down ion line. The study has great significance for plasma parameter inversion under the condition of strong disturbance heating of ionospheric.
- Inhomogeneous distribution /
- Acoustic frequency exciting /
- Incoherent scatter spectra /
- Ion parameter inversion

HTML全文

参考文献(35)

[1]	GORDON W E. Incoherent scattering of radio waves by free electrons with applications to space exploration by radar[J]. Proc. IRE, 1958, 46(11):1824-1829
[2]	FEJER J A. Scattering of radio waves by an ionized gas in thermal equilibrium[J]. Can. J. Phys., 1960, 38(8):1114-1133
[3]	DOUGHERTY J P, FARLEY D T. A theory of incoherent scattering of radio waves by a plasma[J]. Proc. Royal Soc. London A:Math. Phys. Sci., 1960, 259(1296):79-99
[4]	DOUGHERTY J P, FARLEY D T. A theory of incoherent scattering of radio waves by a plasma:3. Scattering in a partly ionized gas[J]. J. Geophys. Res., 1963, 68(19):5473-5486
[5]	FARLEY D T. A theory of incoherent scattering of radio waves by a plasma:4. The effect of unequal ion and electron temperatures[J]. J. Geophys. Res., 1966, 71(17):4091-4098
[6]	SALPETER E E. Electron density fluctuations in a plasma[J]. Phys. Rev., 1960, 120(5):1528-1535
[7]	SALPETER E E. Plasma density fluctuations in a magnetic field[J]. Phys. Rev., 1961, 122(6):1663-1674
[8]	HAGFORS T. Density Fluctuations in a plasma in a magnetic field, with applications to the ionosphere[J]. J. Geophys. Res., 1961, 66(6):1699-1712
[9]	EVANS J V. Theory and practice of ionosphere study by Thomson scatter radar[J]. Proc. IEEE, 1969, 57(4):496-530
[10]	SHEFFIELD J. Plasma Scattering of Electromagnetic Radiation[M]. New York:Academic Press, 1975
[11]	SCHUNK R W, WALKER J C G. Ion velocity distributions in the auroral ionosphere[J]. Planet. Space Sci., 1972, 20(12):2175-2191
[12]	ST-MAURICE J P, SCHUNK R W. Auroral ion velocity distributions using a relaxation model[J]. Planet. Space Sci., 1973, 21(7):1115-1130
[13]	ST-MAURICE J P, SCHUNK R W. Behaviour of ion velocity distributions for a simple collision model[J]. Planet. Space Sci., 1974, 22(1):1-18
[14]	ST-MAURICE J P, SCHUNK R W. Use of generalized orthogonal polynomial solutions of Boltzmann's equation in certain aeronomy problems:Auroral Ion velocity distributions[J]. J. Geophys. Res., 1976, 81(13):2145-2154
[15]	ST-MAURICE J P, SCHUNK R W. Auroral ion velocity distributions for a polarization collision model[J]. Planet. Space Sci., 1977, 25(3):243-260
[16]	ST-MAURICE J P, SCHUNK R W. Ion velocity distribution in the high-latitude ionosphere[J]. Rev. Geophys. Space Phys., 1979, 17(1):99-134
[17]	ST-MAURICE J P, HANSON W B, WALKER J C G. Retarding potential analyzer measurement of the effect of ion-neutral collisions on the ion velocity distribution in the auroral ionosphere[J]. J. Geophys. Res., 1976, 81(31):5438-5446
[18]	RAMAN R S V, ST-MAURICE J P, ONG R S B. Incohe-rent scattering of radar waves in the auroral ionosphere[J]. J. Geophys. Res., 1981, 86(A6):4751-4762
[19]	HUBERT D, LATHUILLÈRE C. Incoherent scattering of radar waves in the auroral ionosphere in the presence of high electric fields, and measurement problems with the EISCAT facility[J]. J. Geophys. Res., 1989, 94(A4):3653-3662
[20]	SUVANTO K. Incoherent scattering of radar waves from nonthermal F region plasma:analytical methods of spectrum synthesis[J]. Radio Sci., 1988, 23(6):989-996
[21]	SUVANTO K. On the analysis of incoherent scatter radar data from non-thermal ionospheric plasma:effects of measurement noise and an inexact theory[J]. Planet. Space Sci., 1990, 38(7):903-912
[22]	BERNHARDT P A, HUBA J D, SWARTZ W E, et al. Incoherent scatter from space shuttle and rocket engine plumes in the ionosphere[J]. J. Geophys. Res., 1998, 103(A2):2239-2251
[23]	BERNHARDT P A, SULZER M P. Incoherent scatter measurements of ring-ion beam distributions produced by space shuttle exhaust injections into the ionosphere[J]. J. Geophys. Res., 2004, 109(A2):A02303
[24]	GUREVICH A V. Nonlinear Phenomena in the Ionosphere[M]. Berlin:Springer-Verlag, 1978
[25]	XU Bin, WU Zhensen, WU Jian, et al. Incoherent scatter spectrum of a collisional plasma[J]. Chin. Phys. Soc., 2009, 58(7):5104-5110
[26]	XU Bin, WU Zhensen, WU Jian, et al. Incoherent scatter spectra due to HF heating in the low ionosphere region[J]. Sci. China E:Technol. Sci., 2009, 52(4):1112-1116
[27]	GUREVICH A V, HAGFORS T, CARLSON H C, et al. Electron temperature measurements by incoherent scattering in the presence of strong small scale temperature irregularities[J]. Phys. Lett., 1998, 246A(3/4):335-340
[28]	GUSTAVSSON B, SERGIENKO T, KOSCH M J. The electron energy distribution during HF pumping, a picture painted with all colors[J]. Ann. Geophys., 2005, 23(5):1747-1754
[29]	MISHIN E, CARLSON H C, HAGFORS T. On the electron distribution function in the F region and airglow enhancements during HF modification experiments[J]. Geophys. Res. Lett., 2000, 27(18):2857-2860
[30]	XU Bin, WANG Zhange, XUE Kun, et al. The inversion of incoherent scatter spectra with a non-Maxwellian electron distribution[J]. J. Atmos. Solar-Terr. Phys., 2010, 72(5/6):492-497
[31]	RIETVELD M T, KOHL H, KOPKA H, et al. Introduction to ionospheric heating at Tromsø——I. experimental overview[J]. J Atmos Solar-Terr. Phys, 1993, 55(4/5):577-599
[32]	KOHL H, KOPKA H, STUBBE P, et al. Introduction to ionospheric heating experiments at Tromsø——Ⅱ Scientific problems[J]. J. Atmos. Solar-Terr. Phys., 1993, 55(4/5):601-613
[33]	DUBOIS D F, HANSSEN A, ROSE H A, et al. Excitation of strong Langmuir turbulence in the ionosphere:comparison of theory and observations[J]. Phys. Fluids B, 1993, 5(7):2616-2622
[34]	DUBOIS D F, HANSSEN A, ROSE H A, et al. Space and time distribution of HF excited Langmuir turbulence in the ionosphere:comparison of theory and experi-ment[J]. J. Geophys. Res., 1993, 98(A10):17543-17567
[35]	DJUTH F T, ISHAM B, RIETVELD M T, et al. First 100ms of HF modification at Tromsø, Norway[J]. J. Geophys. Res., 2004, 109(A11):A11307