is the number of the partial channel reception, and the dependence of the two-dimensional DF characteristics (DFC) only from the measured coordinate Sϑ(ϑ,ϕ,ϑ0)=Sϑ(ϑ,ϑ0), Sϕ(ϑ,ϕ,ϕ0)=Sϕ(ϕ,ϕ0). One-dimensional WFs are the Hamming functions Wx(x)=0.08+0.92cos2(πx/2),-1≤x≤1 and Wy(y)=0.08+0.92cos2(yπ/2), -1≤y≤1, providing the sidelobe level not higher than minus 40 dB, and the working zone width of each angular coordinate not less than twice the width of the DD partial channel at half power, or the other WFs providing the sidelobe level not higher than the Hamming function, and not smaller than the size of the working zone, in the modeling process taking into account the weight functions, the antenna array parameters and the said factorization, the specific form of the functionsϑϑ F1ϑ(ϑ), F2ϑ(ϑ), F3ϕ(ϕ), F4ϕ(ϕ) and Sϑ(ϑ,ϑ0), Sϕ(ϕ,ϕ0) is determined, parametrically-dependent on the offset angles ϑ0 and ϕ0, the odd functions Sϑ(ϑ,ϑ0) and Sϕ(ϕ,ϕ0) describing the one-dimensional DFCs resulting from factorization by the odd degrees of the angles ϑ and ϕ in the Maclaurin series, are expanded.;EFFECT: reducing calculation and the simultaneous measurement time of the two angular target coordinates with a high measurement accuracy, and an error of less than 1 percent the width of the directivity diagram.;4 dwg"/>
METHOD FOR SIMULTANEOUS MEASURING TWO ANGULAR OBJECTIVE COORDINATES IN REVIEW AMPLITUDE MONOPULSE RADAR SYSTEM WITH ANTENNA ARRAY AND DIGITAL SIGNAL PROCESSING
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METHOD FOR SIMULTANEOUS MEASURING TWO ANGULAR OBJECTIVE COORDINATES IN REVIEW AMPLITUDE MONOPULSE RADAR SYSTEM WITH ANTENNA ARRAY AND DIGITAL SIGNAL PROCESSING
METHOD FOR SIMULTANEOUS MEASURING TWO ANGULAR OBJECTIVE COORDINATES IN REVIEW AMPLITUDE MONOPULSE RADAR SYSTEM WITH ANTENNA ARRAY AND DIGITAL SIGNAL PROCESSING
FIELD: radio engineering, communication.;SUBSTANCE: modeling of the receiving and processing process is carried out before receiving the signals, taking into account the use of the antenna array with a rectangular aperture, in which factorization of the two-dimensional weighting function (WF) W(x,y)=Wx(x)Wy(y) is performed, excluding at this aperture form the value effect of one of the measured coordinates on the measurement process of the other coordinate in the azimuth and elevation planes and providing factorization of the two-dimensional directivity diagram (DD) of the channels Fm(ϑ,ϕ)=Fmθ(ϑ)Fmϕ(ϕ), where is the number of the partial channel reception, and the dependence of the two-dimensional DF characteristics (DFC) only from the measured coordinate Sϑ(ϑ,ϕ,ϑ0)=Sϑ(ϑ,ϑ0), Sϕ(ϑ,ϕ,ϕ0)=Sϕ(ϕ,ϕ0). One-dimensional WFs are the Hamming functions Wx(x)=0.08+0.92cos2(πx/2),-1≤x≤1 and Wy(y)=0.08+0.92cos2(yπ/2), -1≤y≤1, providing the sidelobe level not higher than minus 40 dB, and the working zone width of each angular coordinate not less than twice the width of the DD partial channel at half power, or the other WFs providing the sidelobe level not higher than the Hamming function, and not smaller than the size of the working zone, in the modeling process taking into account the weight functions, the antenna array parameters and the said factorization, the specific form of the functionsϑϑ F1ϑ(ϑ), F2ϑ(ϑ), F3ϕ(ϕ), F4ϕ(ϕ) and Sϑ(ϑ,ϑ0), Sϕ(ϕ,ϕ0) is determined, parametrically-dependent on the offset angles ϑ0 and ϕ0, the odd functions Sϑ(ϑ,ϑ0) and Sϕ(ϕ,ϕ0) describing the one-dimensional DFCs resulting from factorization by the odd degrees of the angles ϑ and ϕ in the Maclaurin series, are expanded.;EFFECT: reducing calculation and the simultaneous measurement time of the two angular target coordinates with a high measurement accuracy, and an error of less than 1 percent the width of the directivity diagram.;4 dwg
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机译：领域：无线电工程，通信;实体：在接收信号之前对接收和处理过程进行建模，同时考虑到使用具有矩形孔径的天线阵列，其中二维加权函数因式分解（ WF）W（x，y）= W x （x）W y （y），不包括在此孔径处所测坐标之一的值效应方位角和仰角平面中其他坐标的测量过程，并提供通道F m （ϑ，ϕ）= F mθ的二维方向图（DD）的因式分解（ϑ）F mϕ （ϕ），其中是部分信道接收的数量，以及二维DF特性（DFC）仅依赖于测量坐标S ϑ （ϑ，ϕ，ϑ 0 ）= S ϑ （ϑ，ϑ 0 ），S ϕ （ϑ，ϕ，ϕ 0 ）= S ϕ （ϕ，ϕ 0 ）。一维WF是汉明函数W x （x）= 0.08 + 0.92cos 2 （πx/ 2），-1≤x≤1和W y （y）= 0.08 + 0.92cos 2 （yπ/ 2），-1≤y≤1，且旁瓣电平不高于负40 dB，并且工作区宽度在建模过程中，每个角坐标的半角功率不小于DD部分通道宽度的两倍，或者其他旁瓣电平不高于汉明函数且不小于工作区域大小的其他WF。考虑权重函数，天线阵列参数和所述因式分解，函数的具体形式为F 1ϑ （ϑ）， F 2ϑ （ϑ）， F 3ϕ （ϕ），F 4ϕ （ϕ）和S ϑ （ϑ，ϑ 0 ），S ϕ （ϕ，ϕ 0 ）确定，参数取决于偏移角ϑ 0 和ϕ 0 ，奇数函数S ϑ （ϑ ， ϑ 0 ）和S ϕ （ϕ，ϕ 0 ）描述扩展了Maclaurin系列中因角度ϑ和the的奇数分解而产生的一维DFC。效果：以较高的测量精度减少了两个角目标坐标的计算和同时测量时间，并且误差小于方向图宽度的1％.; 4 dwg
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