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基于虛擬參考站的同步三星時(shí)差定位系統(tǒng)廣域差分校正算法

任凱強(qiáng),  孫正波

任凱強(qiáng), 孫正波. 基于虛擬參考站的同步三星時(shí)差定位系統(tǒng)廣域差分校正算法[J]. 電子與信息學(xué)報(bào), 2019, 41(2): 433-439. doi: 10.11999/JEIT180289
引用本文: 任凱強(qiáng), 孫正波. 基于虛擬參考站的同步三星時(shí)差定位系統(tǒng)廣域差分校正算法[J]. 電子與信息學(xué)報(bào), 2019, 41(2): 433-439. doi: 10.11999/JEIT180289
Kaiqiang REN, Zhengbo SUN. Wide Area Difference Calibration Algorithm Based on Virtual Reference Station for Tri-satellite TDOA Geolocation System[J]. Journal of Electronics & Information Technology, 2019, 41(2): 433-439. doi: 10.11999/JEIT180289
Citation: Kaiqiang REN, Zhengbo SUN. Wide Area Difference Calibration Algorithm Based on Virtual Reference Station for Tri-satellite TDOA Geolocation System[J]. Journal of Electronics & Information Technology, 2019, 41(2): 433-439. doi: 10.11999/JEIT180289

基于虛擬參考站的同步三星時(shí)差定位系統(tǒng)廣域差分校正算法

doi: 10.11999/JEIT180289

  • 盲信號(hào)處理重點(diǎn)實(shí)驗(yàn)室 ??成都 ??610041

基金項(xiàng)目: 國(guó)家自然科學(xué)基金(61304264)
詳細(xì)信息
    作者簡(jiǎn)介:

    任凱強(qiáng)：男，1989年生，博士生，研究方向?yàn)闊o(wú)源定位、誤差校正和信號(hào)處理

    孫正波：男，1975年生，高級(jí)工程師，研究方向?yàn)闊o(wú)源定位、參數(shù)估計(jì)等

    通訊作者:

    任凱強(qiáng)　rkq308597871@126.com

  • 中圖分類(lèi)號(hào): TN91

Wide Area Difference Calibration Algorithm Based on Virtual Reference Station for Tri-satellite TDOA Geolocation System

  • Science and Technology on Blind Signal Processing Laboratory, Chengdu 610041, China

Funds: The National Natural Science Foundation of China (61304264)
  • 摘要:

    星歷誤差是導(dǎo)致同步三星時(shí)差定位系統(tǒng)定位誤差的主要因素，該文針對(duì)傳統(tǒng)差分校正算法在遠(yuǎn)離參考站區(qū)域?qū)π菤v誤差校正精度差的問(wèn)題，提出一種基于虛擬參考站(VRS)的廣域差分校正算法。首先證明兩參考信號(hào)時(shí)差的差分殘差近似為兩參考站連線方向的線性函數(shù)；然后利用已有參考站的位置信息和參考信號(hào)的時(shí)差觀測(cè)值，在目標(biāo)輻射源位置處通過(guò)線性擬合構(gòu)造一個(gè)VRS；最后將目標(biāo)輻射源與VRS的時(shí)差觀測(cè)值進(jìn)行差分，從而實(shí)現(xiàn)對(duì)星歷誤差的高精度校正。仿真結(jié)果表明，相比傳統(tǒng)差分校正算法，該方法可大范圍消除星歷誤差對(duì)同步三星時(shí)差定位系統(tǒng)定位精度的影響，且定位精度可逼近CRLB。

    Abstract:

    A wide area difference calibration algorithm based on Virtual Reference Station (VRS) for tri-satellite Time Difference Of Arrival (TDOA) geolocation system is proposed to solve the problem that traditional difference calibration algorithm can not eliminate the location error caused by ephemeris error completely, especially when the emitter source is far away from the calibration station. Firstly, TDOA measurements of the VRS, which is in the vicinity of emitter source, is estimated by using TDOA measurements of reference station. Then, in order to remove the effect of ephemeris error and synchronization error on location error, TDOA measurements of the VRS is subtracted from that of emitter source. Simulation results demonstrate that the proposed algorithm can almost eliminate the effect of ephemeris error on location error of tri-satellite TDOA geolocation system in wide area.

    • HTML全文

  • 圖  1  算法流程圖

    圖  2  2參考站時(shí)虛擬參考站位置示意圖

    圖  3  3參考站時(shí)虛擬參考站位置示意圖

    圖  4  3參考站時(shí)虛擬參考站與目標(biāo)輻射源的距離變化情況

    圖  5  輻射源與參考站位置示意圖

    圖  6  不同參考站組合條件下本文算法性能對(duì)比

    圖  7  定位誤差隨星歷誤差變化情況

    表  1  仿真場(chǎng)景

    名稱經(jīng)度(°)緯度(°)高程(km)
    輻射源130.0030.000.00
    參考站1120.0040.000.00
    參考站2120.0020.000.00
    參考站3140.0035.000.00
    參考站4110.0030.000.00
    衛(wèi)星1100.000.0035788.12
    衛(wèi)星2110.000.0035788.12
    衛(wèi)星3140.000.2635788.12
    下載: 導(dǎo)出CSV
  • OUYANG Xinxin, WAN Qun, CAO Jingmin, et al. Direct TDOA geolocation of multiple frequency-hopping emitters in flat fading channels[J]. IET Signal Processing, 2017, 11(1): 80–85. doi: 10.1049/iet-spr.2016.0299
    SHAN Changxu, YANG Le, LIU Yang, et al. TDOA-FDOA source geolocation using moving horizon estimation with satellite location errors[C]. IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, Wuxi, China, 2017: 1–6. doi: 10.1109/PACRIM.2017.8121932.
    JUAN ANTONIO G F, ANTONIO J N, MARIANO F N, et al. A comparative study between iterative algorithms for TDOA based geolocation techniques in real UMTS networks[J]. Mobile Networks and Applications, 2017, 1(2): 1–9. doi: 10.1007/s11036-017-0952-4
    房嘉奇, 馮大政, 李進(jìn). 穩(wěn)健收斂的時(shí)差頻差定位技術(shù)[J]. 電子與信息學(xué)報(bào), 2015, 37(4): 798–803. doi: 10.11999/JEIT140560

    FANG Jiaqi, FENG Dazheng, and LI Jin. A robustly convergent algorithm for source localization using time difference of arrival and frequency difference of arrival[J]. Journal of Electronics &Information Technology, 2015, 37(4): 798–803. doi: 10.11999/JEIT140560
    MA Zhenhua and HO K C. A study on the effects of sensor position error and the placement of calibration emitter for source localization[J]. IEEE Transactions on Wireless Communications, 2014, 13(10): 5440–5452. doi: 10.1109/TWC.2014.2341609
    WANG Ding, WEI Shuai, and WU Ying. A performance analysis of multi-satellite joint geolocation[J]. Front Inform Technol Electron Eng, 2016, 17(12): 1360–1387. doi: 10.1631/FITEE.1500285
    WANG Yue and HO K C. TDOA source localization in the presence of synchronization clock bias and sensor position errors[J]. IEEE Transactions on Signal Processing, 2013, 61(18): 4532–4544. doi: 10.1109/TSP.2013.2271750
    YANG Le and HO K C. On using multiple calibration emitters and their geometric effects for removing sensors position errors in TDOA localization[C]. IEEE International Conference on Acoustics Speech and Signal Processing, Dallas, USA, 2010: 2702–2705. doi: 10.1109/ICASSP.2010.5496241.
    LI Jinzhou, PANG Hongwei, GUO Fucheng, et al. Localization of multiple disjoint sources with prior knowledge on source locations in the presence of sensor location errors[J]. Digital Signal Processing, 2015, 40: 181–197. doi: 10.1016/j.dsp.2015.02.003
    孫順, 董凱, 齊林, 等. 基于TDOA與GROA的多運(yùn)動(dòng)站誤差配準(zhǔn)算法[J]. 電子與信息學(xué)報(bào), 2017, 39(6): 1139–1145. doi: 10.11999/JEIT160562

    SUN Shun, DONG Kai, QI Lin, et al. Multiple moving observers registration algorithm based on TDOA and GROA[J]. Journal of Electronics &Information Technology, 2017, 39(6): 1139–1145. doi: 10.11999/JEIT160562
    YANG Le and HO K C. Alleviating sensor position error in source localization using calibration emitters at inaccurate locations[J]. IEEE Transactions on Signal Processing, 2010, 58(1): 67–83. doi: 10.1109/TSP.2009.2028947
    LIU Chao, YANG Le, and MIHAYLOVA L. Dual-satellite source geolocation with time and frequency offsets and satellite location errors[C]. The 20th International Conference on Information Fusion, Xi'an, China, 2017: 682–689. doi: 10.23919/ICIF.2017.8009716.
    王瑩桂, 李騰, 陳振林, 等. 三星時(shí)差定位系統(tǒng)的四站標(biāo)定方法[J]. 宇航學(xué)報(bào), 2010, 31(5): 1352–1356. doi: 10.3873/j.issn.1000-1328.2010.05.016

    WANG Yinggui, LI Teng, CHEN Zhenlin, et al. Tri-satellite TDOA location system-based four station calibration technique[J]. Journal of Astronautics, 2010, 31(5): 1352–1356. doi: 10.3873/j.issn.1000-1328.2010.05.016
    LI Jinzhou, GUO Fucheng, YANG Le, et al. On the use of calibration sensors in source localization using TDOA and FDOA measurements[J]. Digital Signal Processing, 2014, 27: 33–43. doi: 10.1016/j.dsp.2013.12.011
    HO K C and YANG Le. On the use of a calibration emitter for source localization in the presence of sensor position uncertainty[J]. IEEE Transactions on Signal Processing, 2008, 56(12): 5758–5772. doi: 10.1109/TSP.2008.929870
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  • 文章訪問(wèn)數(shù):  2293
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  • PDF下載量:  49
  • 被引次數(shù): 0
出版歷程
  • 收稿日期:  2018-03-20
  • 修回日期:  2018-11-12
  • 網(wǎng)絡(luò)出版日期:  2018-11-19
  • 刊出日期:  2019-02-01

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