合肥工业大学学报（自然科学版）
閤肥工業大學學報（自然科學版）
합비공업대학학보（자연과학판）
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY(NATURAL SCIENCE)
2015年
5期
631-634
,共4页
信号模型%捕获策略%信号捕获%N取M算法%全球定位系统
信號模型%捕穫策略%信號捕穫%N取M算法%全毬定位繫統
신호모형%포획책략%신호포획%N취M산법%전구정위계통
signal model%acquisition strategy%signal acquisition%M in N algorithm%global positioning system(GPS)
文章在传统GPS信号捕获算法的基础上提出了一种适用于GPS软件接收机的信号捕获策略，它能够准确而有效地搜索捕获到可见的GPS卫星信号，利用并行码相位快速搜索算法对GPS信号进行快速初捕获，使用 N‐M检测算法对被捕获结果进行确认，再做进一步的优化，从而得到真实可靠的捕获数据，以供信号跟踪阶段使用。
文章在傳統GPS信號捕穫算法的基礎上提齣瞭一種適用于GPS軟件接收機的信號捕穫策略，它能夠準確而有效地搜索捕穫到可見的GPS衛星信號，利用併行碼相位快速搜索算法對GPS信號進行快速初捕穫，使用 N‐M檢測算法對被捕穫結果進行確認，再做進一步的優化，從而得到真實可靠的捕穫數據，以供信號跟蹤階段使用。
문장재전통GPS신호포획산법적기출상제출료일충괄용우GPS연건접수궤적신호포획책략，타능구준학이유효지수색포획도가견적GPS위성신호，이용병행마상위쾌속수색산법대GPS신호진행쾌속초포획，사용 N‐M검측산법대피포획결과진행학인，재주진일보적우화，종이득도진실가고적포획수거，이공신호근종계단사용。
In this paper ,a new signal acquisition strategy is proposed based on the traditional acquisi‐tion algorithm of global positioning system (GPS ) signal in order to adapt to the development of the software‐defined GPS receiver .It can acquire the useful GPS signal effectively and accurately .A par‐allel code search algorithm is used to promote the speed of GPS signal acquisition ,and a “ M on N”statistic approach is used in order to increase the reliability of acquisition ,reducing the probability of false detection .In order to increase the acquisition accuracy ,a refinement is performed finally .The acquisition results can be used in signal tracking stage .
