•   Quick Search:       Advanced Search
    WANG Xiaojun,ZHANG Ziqi,LI Ying.B1C navigation signal acquisition algorithm based on PCO+FFT[J].Journal of Hebei University of Science and Technology,2020,41(6):486-492
    基于PCO+FFT的B1C導航信號捕獲算法
    B1C navigation signal acquisition algorithm based on PCO+FFT
    Received:September 01, 2020  Revised:October 15, 2020
    DOI:10.7535/hbkd.2020yx06002
    中文關鍵詞:  無線通信技術  B1C信號  PCO  FFT  捕獲  性能分析  算法實現
    英文關鍵詞:wireless communication technology  B1C signal  PCO  FFT  acquisition  performance analysis  algorithm implementation
    基金項目:國防科技重點實驗室項目(6142205190401)
    Author NameAffiliationE-mail
    WANG Xiaojun School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang eicont@qq.com 
    ZHANG Ziqi School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang  
    LI Ying Shijiazhuang Institute of Posts and Telecommunications, Shijiazhuang  
    Hits: 1643
    Download times: 1633
    中文摘要:
          為了對采用BOC調制的B1C導航信號進行捕獲,提出了基于PCO+FFT的導航信號捕獲算法。首先,在深入分析B1C信號特點的基礎上,對分段長度和FFT點數進行選擇;其次,從相干積分增益、非相關積分增益、多普勒測頻范圍與測頻分辨率、檢測概率等幾個方面對該算法進行了深入地推導;再次,給出基于新算法的FPGA實現方案;最后,通過仿真驗證算法的有效性。在FPGA硬件平臺上進行實測的結果顯示了方案的正確性。將副載波剝離的方式以及基于狀態機的控制核心的實現思路可為導航信號捕獲算法的改進提供參考。
    英文摘要:
          In order to capture the B1C navigation signal with BOC modulation, a specific acquisition scheme of PCO+FFT was proposed. Firstly, based on in-depth analysis of the characteristics of B1C signal, the segment length and FFT points were selected. Secondly, the algorithm was derived from coherent integral gain, uncorrelated integral gain, Doppler frequency measurement range and resolution, and detection probability. Thirdly, the FPGA implementation scheme based on the algorithm was given. Finally, the simulation performance of the algorithm was given to illustrate the effectiveness of the algorithm. The correctness of the implementation scheme is verified by the actual measurement on the FPGA hardware platform. The method of sub carrier separation and the realization of control core based on state machine have certain reference value for the improvement of navigation signal acquisition algorithm.
    View Full Text  View/Add Comment  Download reader
    Close
    购乐彩