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非完備空際間疊干擾下星基導(dǎo)航信號捕獲性能分析

張海川,  曾芳玲

張海川, 曾芳玲. 非完備空際間疊干擾下星基導(dǎo)航信號捕獲性能分析[J]. 電子與信息學(xué)報(bào), 2019, 41(3): 594-601. doi: 10.11999/JEIT180355
引用本文: 張海川, 曾芳玲. 非完備空際間疊干擾下星基導(dǎo)航信號捕獲性能分析[J]. 電子與信息學(xué)報(bào), 2019, 41(3): 594-601. doi: 10.11999/JEIT180355
Haichuan ZHANG, Fangling ZENG. Performance Analysis of the Satellite-based Navigation Signal Acquisition under the Non-complete Spatial Overlapped Interference[J]. Journal of Electronics & Information Technology, 2019, 41(3): 594-601. doi: 10.11999/JEIT180355
Citation: Haichuan ZHANG, Fangling ZENG. Performance Analysis of the Satellite-based Navigation Signal Acquisition under the Non-complete Spatial Overlapped Interference[J]. Journal of Electronics & Information Technology, 2019, 41(3): 594-601. doi: 10.11999/JEIT180355

非完備空際間疊干擾下星基導(dǎo)航信號捕獲性能分析

doi: 10.11999/JEIT180355

  • 國防科技大學(xué)電子對抗學(xué)院 ??合肥 ??230037

基金項(xiàng)目: 國家自然科學(xué)基金(61272333)，國防科技重點(diǎn)實(shí)驗(yàn)室基金(9140C130502140C13068)
詳細(xì)信息
    作者簡介:

    張海川：男，1991年生，博士生，研究方向?yàn)殛嚵行盘柼幚?、自適應(yīng)波束形成、星基定位接收機(jī)系統(tǒng)

    曾芳玲：女，1970年生，教授，主要研究方向?yàn)镚PS信號對抗、無源定位、精確衛(wèi)星時(shí)頻同步等

    通訊作者:

    張海川　zhanghai4258@163.com

  • 中圖分類號: TN965.5

Performance Analysis of the Satellite-based Navigation Signal Acquisition under the Non-complete Spatial Overlapped Interference

  • Institute of Electronic Warfare, National University of Defense Technology, Hefei 230037, China

Funds: The National Natural Science Foundation China (61272333), The National Defense Dcience and Technology Key Laboratory Fund (9140C130502140C13068)
  • 摘要:

    該文針對星基定位接收機(jī)導(dǎo)航信號捕獲的干擾問題，提出一種非完備空際間疊干擾信號模型。首先對提出的干擾模型以及非完備空際間疊引起的干擾裂變效應(yīng)進(jìn)行了闡述分析與推究證明，而后推導(dǎo)計(jì)算出了星基定位接收機(jī)輸出信干噪比(SINR)與空際間疊長度的函數(shù)式，論證了兩者函數(shù)單調(diào)性關(guān)系。仿真實(shí)驗(yàn)表明星基定位接收機(jī)輸出信干噪比為空際間疊長度的單調(diào)增函數(shù)，短空際間疊長度干擾可抑制3維頻碼域相關(guān)峰突起，降消星基定位接收機(jī)捕獲性能。

    Abstract:

    A non-complete spatial overlapped interference signal model is proposed based on the jamming research against satellite-based positioning receiver for the acquisition of navigation signal. Firstly, the interference model is introduced and analyzed, and the signal fission effect induced by non-complete spatial overlapped interference is demonstrated. Then, the relationship between SINR of satellite-based positioning receiver and spatial overlapped length is derived, and the monotonic relationship of them is deduced. Simulation results suggest that SINR of satellite-based positioning receiver is the monotonically increasing function of spatial overlapped length, and the short-spatial-overlapped interference can restrain the peak amplitude of three dimensional frequency and coded domain correlation, degrading the performance of acquisition of satellite-based positioning receiver.

    • HTML全文

  • 圖  1  自適應(yīng)空域?yàn)V波系統(tǒng)模型

    圖  2  不同Ra下波束方向圖

    圖  3  不同算法輸出SINR性能比較

    圖  4  不同Ra下相關(guān)捕獲結(jié)果圖

    圖  5  不同陣元數(shù)下相關(guān)算法輸出SINR性能比較

    表  1  仿真實(shí)驗(yàn)參數(shù)設(shè)置

    載波頻率1.57542 GHz
    陣元間距0.5波長
    信道環(huán)境高斯白噪聲信道
    干擾類型隨機(jī)噪聲干擾
    陣元數(shù)目8
    期望信號入射方位10°
    干擾信號入射方位50°
    陣列形狀均勻線性陣列天線
    下載: 導(dǎo)出CSV
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出版歷程
  • 收稿日期:  2018-04-18
  • 修回日期:  2018-11-21
  • 網(wǎng)絡(luò)出版日期:  2018-12-06
  • 刊出日期:  2019-03-01

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