同轨收发卫星雷达基线长度及杂波特性分析

doi:10.12305/j.issn.1001-506X.2023.08.24

Abstract

Abstract:

In order to solve the problem of clutter suppression for co-orbital transceiver spaceborne radar, this paper firstly analyzes the influence of the baseline length of the transceiver radar and the isometric contour on the existence of the detection intersection area. Secondly, for a certain isometric contour, the relation between the receiving cone angle and the clutter Doppler frequency and the relation between the sum of the detection range and the clutter Doppler frequency is analyzed. Finally, based on the existence of both positive and negative values of the cosine of the receiving cone angle, the Doppler frequency is analyzed under the reference transceiver satellite and two auxiliary satellites when the cosine of the receiving cone angle is 0. Theoretical analysis shows that baseline length and isometric contour affect the existence of detection area and the value of cosine of receiving cone angle, and the correctness is verified by simulation test, which can provide a basis for the selection of the baseline length and the application of the co-orbital spaceborne transceiver radar.

Key words: spaceborne radar, co-orbit, baseline length, clutter characteristics

CLC Number:

TN911.7

Mengyu NI, Hui CHEN, Xiaoge WANG, Binbin LI, Zhaojian ZHANG. Analysis of baseline length and clutter characteristic of co-orbital transceiver spaceborne radar[J]. Systems Engineering and Electronics, 2023, 45(8): 2498-2505.

Figures/Tables 8

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References 16

1	SIKANETA I , GIERULL C H , CERUTTI-MAORI D . Optimum signal processing for multichannel SAR: with application to high-resolution wide-swath imaging[J]. IEEE Trans.on Geoscience and Remote Sensing, 2014, 52 (10): 6095- 6109. doi: 10.1109/TGRS.2013.2294940
2	邓云凯, 禹卫东, 张衡, 等. 未来星载SAR技术发展趋势[J]. 雷达学报, 2020, 9 (1): 1- 33.
	DENG Y K , YU W D , ZHANG H , et al. Forthcoming spaceborne SAR development[J]. Journal of Radars, 2020, 9 (1): 1- 33.
3	JAYARAMAN V, DASH D, JENA D. Optimal coverage area analysis for target localization in multistatic radar[C]//Proc. of the International Conference on Applied Electromagnetics, Signal Processing and Communication, 2018: 1-5.
4	XU H J , YANG Z W , TIAN M , et al. An extended moving target detection approach for high-resolution multichannel SAR-GMTI systems based on enhanced shadow-aided decision[J]. IEEE Trans.on Geoscience and Remote Sensing, 2018, 56 (2): 715- 729. doi: 10.1109/TGRS.2017.2754098
5	ZHANG F R , SUN Y M , ZOU J F , et al. Closed-form localization method for moving target in passive multistatic radar network[J]. IEEE Sensors Journal, 2020, 20 (2): 980- 990. doi: 10.1109/JSEN.2019.2944957
6	HAMDOLLAHZADEH M , AMIRI R , BEHNIA F . Moving target localization in bistatic forward scatter radars: performance study and efficient estimators[J]. IEEE Trans.on Aerospace and Electronic Systems, 2020, 56 (2): 1582- 1594. doi: 10.1109/TAES.2019.2934007
7	VARADARAJAN V , KROLIK J L . Joint space-time interpolation for distorted linear and bistatic array geometries[J]. IEEE Trans.on Signal Processing, 2006, 54 (3): 848- 860. doi: 10.1109/TSP.2005.862941
8	ZHANG S X , XING M D , XIA X G , et al. Robust clutter suppression and moving target imaging approach for multichannel in azimuth high-resolution and wide-swath synthetic aperture radar[J]. IEEE Trans.on Geoscience and Remote Sensing, 2015, 53 (2): 687- 709. doi: 10.1109/TGRS.2014.2327031
9	李华, 汤俊, 彭应宁. 星载双基地雷达空时二维杂波建模方法[J]. 电子学报, 2008, 36 (3): 417- 420.
	LI H , TANG J , PENG Y N . Modeling of space-time clutter for bistatic space based radar[J]. Acta Electronica Sinica, 2008, 36 (3): 417- 420.
10	刘楠, 张林让, 易予生, 等. 星载双基地雷达空时二维杂波建模和特性分析[J]. 西安电子科技大学学报(自然科学版), 2009, 36 (3): 390- 395.
	LIU N , ZHANG L R , YI Y S , et al. Clutter modeling and analysis for spaceborne bistatic radar[J]. Journal of Xidian University (Natural Science), 2009, 36 (3): 390- 395.
11	MAMGAIN R, BAPAT J. Comparative analysis of geometry of receiver placement in multistatic radar configuration[C]//Proc. of the IEEE International Conference on Electronics, Computing and Communication Technologies, 2020: 1-6.
12	李海鹏, 冯大政, 周永伟. 多基地雷达栅栏覆盖的优化布站方法[J]. 西安电子科技大学学报, 2021, 48 (2): 147- 155.
	LI H P , FENG D Z , ZHOU Y W . Optimum placement method of multistatic radar barrier coverage[J]. Journal of Xidian University (Natural Science), 2021, 48 (2): 147- 155.
13	李修和, 陈永光, 张艳艳, 等. 不同干扰决策准则下的双基地雷达探测能力研究[J]. 电子学报, 2004, 32 (12): 2063- 2066.
	LI X H , CHEN Y G , ZHANG Y Y , et al. Detecting capability of bistatic radar under different jamming decision criterion[J]. Acta Electronica Sinica, 2004, 32 (12): 2063- 2066.
14	ZULCH P, DAVIS M, ADZIMA I. The earth rotation effect on a LEO L-band GMTI SBR and mitigation strategies[C]//Proc. of the IEEE Radar Conference, 2004: 27-32.
15	卫国宁, 骆剑, 康志宇, 等. 一种星下点精确重访约束下的轨道设计方法[J]. 中国空间科学技术, 2016, 36 (4): 67- 73.
	WEI G N , LUO J , KANG Z Y , et al. A method of orbit design based on precise revisit of a given ground track[J]. Chinese Space Science and Technology, 2016, 36 (4): 67- 73.
16	ABDELKHALIK O . Initial orbit design from ground track points[J]. Journal of Spacecraft and Rockets, 2010, 47 (1): 202- 205.

雷达仿真参数	数值
接收天线阵元数N	16
相干脉冲数K	16
带宽/MHz	5
发射峰值功率/kW	100
噪声系数/dB	3
主波束指向θ_EL0/(°)	90
主波束指向θ_AZ0/(°)	180

多普勒频率/接收	R	R₁	R₂
F_d1理论值	0.055 6	0.041 2	0.064 2
F_d1仿真值	0.055 6	0.040 0	0.063 9
差值绝对值	0.000 0	0.001 2	0.000 3
F_d2理论值	0.003 2	0.017 8	0.005 5
F_d2仿真值	0.003 3	0.019 0	0.005 3
差值绝对值	0.000 1	0.001 2	0.000 2
\|F_d2－F_d1\|理论值	0.058 8	0.059 0	0.058 7
\|F_d2－F_d1\|仿真值	0.058 9	0.059 0	0.058 6
差值绝对值	0.000 1	0.000 0	0.000 1

[1]	WANG Cheng-hao, LIAO Gui-sheng, XU Jing-wei, ZENG Cao. Modeling and characteristics analysis of space-time clutter for ultralong baseline bistatic airborne radar [J]. Systems Engineering and Electronics, 2016, 38(10): 2258-2266.
[2]	YANG Jian, LIU Yu, DI Hui. Long baseline direction finding algorithm of wideband signal based on time delay correction [J]. Journal of Systems Engineering and Electronics, 2013, 35(1): 20-28.

Analysis of baseline length and clutter characteristic of co-orbital transceiver spaceborne radar

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