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METHOD FOR UNAMBIGUOUS DETECTION OF OVERALL PHASE DIFFERENCE USING INTERFERENCE MEASUREMENTS FOR DETECTION OF CHARACTERISTICS OF ANGULAR ORIENTATION OF OBJECTS USING SIGNALS OF SATELLITE RADIO NAVIGATION SYSTEM
METHOD FOR UNAMBIGUOUS DETECTION OF OVERALL PHASE DIFFERENCE USING INTERFERENCE MEASUREMENTS FOR DETECTION OF CHARACTERISTICS OF ANGULAR ORIENTATION OF OBJECTS USING SIGNALS OF SATELLITE RADIO NAVIGATION SYSTEM
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机译:利用卫星无线电导航系统信号无误检测总体相位差的方法
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FIELD: radio navigation, in particular, medium-altitude satellite radio navigation global positioning systems. SUBSTANCE: method involves receiving of signals from visible satellites with known position with respect to object by means of two antennas of interferometer, measuring for each satellite an interference phase difference ϕ1, where i is satellite number, i=1,2,..., m; storing this phase difference, using measured phase differences ϕ1 for Mm satellites in order to generate all combinations of overall phase differences ϕ1= n1+ϕ1, where n is integer values of phase cycles in range of -l/λ to +l/λ,, where l is interferometer base length , λ is satellite system signal wavelength. Then method involves selection of combinations which match phase interference measurements for remaining (m-M) satellites, generation of all combinations of overall phase differences Vijk using signals from M= 3 satellites which numbers i, j, k conform to condition of maximal size of parallelepiped Vijk of unit vectors for these satellites. Selection involves preliminary generation of combinations &phis;l,&phis;j,&phis;k, which conform to condition , where Qij, Qjk, Qki are scalar products of corresponding unit vectors of satellites, T1 is threshold value which is proportional to variance of phase measurements (in case of relative position detection, when precise base length is unknown, T1 is increased by value which is proportional to variance of base length). Then measured phase samples ϕt,, where t are numbers of remaining satellites are used for generation of combination of overall phase differences &phis;l,&phis;j,&phis;k,&phis;t...m, for all t which conform to condition , where is absolute value of difference between value given by equation nt+&Dgr;n = -ϕt+[ФiVtjk+ФjVitk+ФkVijt]/Vijk, and this value rounded to nearest integer nt which belongs to overall phase difference Фt= nt+ϕt. EFFECT: elimination of ambiguity in interference measurements by reliable determination of actual value of overall phase difference in order to measure characteristics of angular orientation of objects using signals of satellite global positioning system. 4 dwg
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机译:领域:无线电导航,尤其是中空卫星无线电导航全球定位系统。实质:该方法涉及通过干涉仪的两个天线从相对于物体具有已知位置的可见卫星接收信号,为每个卫星测量一个干扰相位差& 1 Sub>,其中i是卫星号, i = 1,2,...,m;使用M> m个卫星的测量到的相位差& 1 Sub>存储此相位差,以便生成整体相位差&phiv; 1 Sub> = n 1的所有组合 Sub> +&phiv; 1 Sub>,其中n是-l /λ到+ l /λ范围内的相位周期的整数值,其中l是干涉仪的基本长度,λ是卫星系统信号波长。然后,方法包括选择与剩余(mM)个卫星的相位干扰测量值匹配的组合,使用来自M = 3个编号i,j,k符合的卫星的信号生成总相位差V ijk Sub>的所有组合满足单位矢量的平行六面体Vijk的最大大小的条件这些卫星。选择涉及组合&phis; l Sub>,& j Sub>,&phis; k Sub>的初步生成,这些组合符合条件,其中Qij,Qjk,Qki是卫星相应单位向量的标量积,T1为与相位测量的方差成比例的阈值(在相对位置检测的情况下,当精确的基本长度未知时,T1增加与基本量的方差成比例的值)。然后测得的相位样本& Sub ; Sub>,其中t是剩余卫星的数量,用于生成整体相位差& l Sub>,&phis; j的组合 Sub>,&phis; k Sub>,&phis; t ... m Sub>,对于符合条件,其中<图像文件=” 00000009.GIF“ he =” 6“ id =” imag0.9“ imgContent =“ undefined” imgFormat =“ GIF” wi =“ 8” />是公式n t Sub> +&Dgr; n =-&phiv; t Sub给定的值之间的差的绝对值> + [Ф i Sub> V tjk Sub> +Ф j Sub> V itk Sub> +Ф k Sub> V ijt Sub>] / V ijk Sub>,此值四舍五入为最接近的整数nt,该整数属于整体相位差Ф t Sub> = n t Sub> +&phiv; t Sub>。效果:通过可靠地确定整体相位差的实际值来消除干扰测量中的歧义,以便使用卫星全球定位系统的信号来测量物体的角度方向特性。 4 dwg
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