Tracking structure suitable for L6 signal

doi:10.19682/j.cnki.1005-8885.2021.2006

中国邮电高校学报(英文) ›› 2021, Vol. 28 ›› Issue (4): 64-74.doi: 10.19682/j.cnki.1005-8885.2021.2006

• Signal processing • 上一篇下一篇

Tracking structure suitable for L6 signal

Wang Yiting, Ba Xiaohui, Liu Xueyong,Yang Ying, Li Jian, Chen Jie

1. System on Chip Lab, Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China
2. College of Electronic and Electrical Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2020-12-03 修回日期:2021-06-07 接受日期:2021-07-31 出版日期:2021-08-31 发布日期:2021-10-11
通讯作者: Corresponding author: Chen Jie, E-mail: jchen@ime.ac.cn E-mail:jchen@ime.ac.cn
基金资助:
This work was supported by the National Key Research and Development Project (2019YFB2204200).

Tracking structure suitable for L6 signal

Wang Yiting, Ba Xiaohui, Liu Xueyong,Yang Ying, Li Jian, Chen Jie

1. System on Chip Lab, Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China
2. College of Electronic and Electrical Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Received:2020-12-03 Revised:2021-06-07 Accepted:2021-07-31 Online:2021-08-31 Published:2021-10-11
Contact: Corresponding author: Chen Jie, E-mail: jchen@ime.ac.cn E-mail:jchen@ime.ac.cn
Supported by:
This work was supported by the National Key Research and Development Project (2019YFB2204200).

摘要/Abstract

摘要： A tracking structure suitable for L6 signal of quasi-zenith satellite system (QZSS) was proposed in order to track the L6 signal without other frequency assistance. Moreover, the tracking structure does not change the receiver's hardware structure. The main difference between the proposed and the traditional tracking structure lies in the generation of local codes of E, P and L branches. The method of local code generation is designed in a two-stage manner. The first stage is the generation of the P branch local code with fast fourier transform (FFT). In the second stage, the local codes of the E and L branches are obtained with the code-chip interval. The tracking structure can track and decode L6 signal separately, and track code shift keying (CSK) modulated signal as well. The structure was verified using both simulation data, generated in different conditions, and actual data obtained from QZSS satellites respectively. The results show that the improved tracking loop is able to track L6 signal without other frequency assitance. Furthermore, the biterror ratio (BER) of L6 tracking algorithm is lower than that of L1C/A assist L6 algorithm, when the Doppler remains a constant and reed solomn (RS) encode are applied. To be more specific, with the proposed structure the BER decreased by 11.40%, 17.07%, 15.00%, 11.15%, 5.19% when carrier to noise ratio (CNR) is 36 -40 dB·Hz.

关键词: quasi-zenith satellite system, L6 signal, code shift keying modulation, tracking algorithm

Abstract: A tracking structure suitable for L6 signal of quasi-zenith satellite system (QZSS) was proposed in order to track the L6 signal without other frequency assistance. Moreover, the tracking structure does not change the receiver's hardware structure. The main difference between the proposed and the traditional tracking structure lies in the generation of local codes of E, P and L branches. The method of local code generation is designed in a two-stage manner. The first stage is the generation of the P branch local code with fast fourier transform (FFT). In the second stage, the local codes of the E and L branches are obtained with the code-chip interval. The tracking structure can track and decode L6 signal separately, and track code shift keying (CSK) modulated signal as well. The structure was verified using both simulation data, generated in different conditions, and actual data obtained from QZSS satellites respectively. The results show that the improved tracking loop is able to track L6 signal without other frequency assitance. Furthermore, the biterror ratio (BER) of L6 tracking algorithm is lower than that of L1C/A assist L6 algorithm, when the Doppler remains a constant and reed solomn (RS) encode are applied. To be more specific, with the proposed structure the BER decreased by 11.40%, 17.07%, 15.00%, 11.15%, 5.19% when carrier to noise ratio (CNR) is 36 -40 dB·Hz.

Key words: quasi-zenith satellite system, L6 signal, code shift keying modulation, tracking algorithm

中图分类号:

TN967.1

Wang Yiting, Ba Xiaohui, Liu Xueyong, Yang Ying, Li Jian, Chen Jie. Tracking structure suitable for L6 signal[J]. The Journal of China Universities of Posts and Telecommunications, 2021, 28(4): 64-74.

参考文献

1. Gao G H, Kuang C L,Cai C S, et al. Real-time PPP based on the quasi-zenith satellite system MADOCA - LEX signal. The Institution of Engineering and Technology Radar, Sonar and Navigation, 2018, 12(5): 494 -498
2. Wang Y T, Ba X H. Analysis of QZSS system characteristics based on 'Gaojing No. 1'. Journal of Chinese Inertial Technology, 2018, 26(4): 452 -457 (in Chinese)
3. Kogure S, Kawano I. GPS augmentation and complement using quasi-zenith satellite system (QZSS). Proceedings of the 21st International Communications Satellite Systems Conference and Exhibit, 2003, Apr 15 -19, Yokohama, Japan. Reston, VA, USA: AIAA (American Institute of Aeronautics and Astronautics), 2003: 2416 -2426
4. Takasu T, Yasuda A, Kogure S. Development of multi-GNSS orbit and clock determination software ‘MADOCA'. Proceedings of the 5th Asia Oceania Regional Workshop, 2013, Dec 1 -3, Hanoi, Vietnam, 2013: 57 -63
5. Zhang S C, Du S K, Li W, et al. Evaluation of the GPS precise orbit and clock corrections from MADOCA real-time products. Sensors (Basel), 2011, 19(11): 2580 -2593
6. Hiromune N, Nobuaki K. Performance evaluation of centimeter-level augmentation positioning L6 - CLAS/MADOCA at the beginning of official operation of QZSS. Journal of Industry Appliations, 2021, 10(1): 27 -35
7. Suzuki T S, Kubo N. Precise point positioning for mobile robots using software GNSS receiver and QZSS LEX signal. Proceedings of the 2013 IEEE RSJ International Conference on Intelligent Robots and Systems, 2013, Nov 3 -7, Tokyo, Japan. Piscataway, NJ, USA: IEEE, 2013: 369 -375
8. Chen Y H,Wang D, Chen S Y, et al. Research on receiving method of code shift keying (CSK) signal. Proceedings of the 2020 China Satellite Navigation Conference (CSNC'20): 2020, May 23 -25, Chengdu, China. LNEE 652. Berlin, Germany: Springe, 2020, 3: 298 -309
9. Zhang H B. Architectures and signal processing method for a signal-frequency LEX receiver. Master Thesis. Brisbane City, Australia: 3rd Queensland University of Technology, 2016: 29 -42
10. Hoang-Van H, Thanh T N T, The V L. An evaluation of precise point positioning using QZSS LEX signal in Vietnam. Proceedings of the 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS'16), 2016, Sept 14 -16, Danang, Vietnam. Piscataway, NJ, USA: IEEE, 2016: 234 -239
11. Choy S, Harima K, Li Y, et al. High accuracy real-time precise point positioning using the Japanese quasi-zenith satellites system LEX signal. Proceedings of the 2014 Geospatial Science Research 3 Symposium, 2014, Dec 2 -3, Melbourne, Australia, 2014: 1 -8
12. Guo F, Li X X, Zhang X H, et al. Assessment of precise orbit and clock products for Galileo, Beidou, and QZSS from IGS multi-GNSS experiment (MGEX). GPS Solutions, 2017, 21(1): 279 -290
13. Suzuki T, Kubo N, Takasu T. Evaluation of precise point positioning using MADOCA - LEX via quasi-zenith satellite
system. Jstor, Proc 2014 Institute of Navigation International Technical Meeting (ITM'14), 2014, Jan 27 -29, San Diego,
CA, USA. Manassas, VA, USA: Institute of Navigation, 2014: 460 -470
14. Stevanovic S, Pervan B. A GPS phase-locked loop performance metric based on the phase discriminator output. Sensors (Basel), 2018, 18(1): 296 -318
15. Razavi A, Gebre-Egziabher D, Akos D M. Carrier loop architectures for tracking weak GPS signals. IEEE Transactionson on Aerospace and Electronic Systems, 2008, 44(2): 697 -710
16. Messerschmitt D G. Frequency detectors for PLL acquisition in timing and carrier recovery. IEEE Transactionson on
Communication, 1979, 27(9): 1288 -1295
17. Xie G. Principles of GPS and receiver design. Beijing, China: Publishing House of Electronics Industry, 2017: 268 -292 (in Chinese)
18. Shamla B, Devi K G. Design and implementation of costas loop for BPSK demodulator. Proceedings of the 2012 Annual IEEE India Conference (INDICON'12), 2012, Dec 7 -9, Kochi, India. Piscataway, NJ, USA: IEEE, 2013: 785 -789
19. Gao Y, Zhang L, Yuan J. Performance analysis of costas-PLL based on four-way signal processing. Proceedings of the 2013 IET International Radar Conference, 2013, Apr 14 -16, Xi'an, China. Piscataway, NJ, USA: IEEE, 2013: 1 -4
20. Li Y F, Wang M L, Shivaramaiah N C. Design and analysis of a generalized DLL/FLL discriminator for GPS receivers. GPS Solutions, 2018, 22(64): 1 -17
21. Liu L Y, Amin M G. Tracking performance and average error analysis of GPS discriminators in multipath. Signal Processing, 2009, 89(6): 1224 -1239
22. Landau H J. Sampling, data transmission, and the Nyquist rate. Proceeding of IEEE, 1967, 55(10): 1701 -1706
23. Garcia-Pena A, Salos D, Julien O, et al. Analysis of the use of CSK for future GNSS signals. Proceedings of the 26th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS'13), 2013, Sept 16 -20, TN, USA. Manassas, VA, USA: Institute of Navigation Nashville, 2013: 1461 -1479
24. Kao C H, Robertson C, Kragh F. Performance analysis and simulations of 32-ary cyclic code-shift keying. International Journal of Communications Systems, 2010, 24: 258 -268
25. Kao C H, Robertson C, Lin K. Performance analysis and simulation of cyclic code-shift keying. Proceedings of the 2008 IEEE Military Communications Conference (MUCOM'08), 2008, Nov 16 -19, San Diego, CA, USA. Piscataway, NJ, USA: IEEE, 2008: 1 -6
26. Groves P D. GPS signal-to-noise measurement in weak signal and high-interference environments. Journal of the Institute of Navigation, 2005, 52(2): 83 -94

Tracking structure suitable for L6 signal

Tracking structure suitable for L6 signal

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