Design of error tolerance of a phased array

Tolerance Analysis of Antenna Array Pattern and Array Synthesis in the Presence of Excitation Errors

“…For instance, under the assumption that the excitation errors are normally distributed, Ruze proposed analyzing the association between the radiation pattern and the random excitation errors [2]. In [3], Hsiao obtained the statistical regularities of sidelobes distributed in different regions by studying the impacts of stochastic independence and corresponding amplitude-phase errors on the sidelobe level. However, these statistical methods cannot be applied into engineering design directly as the distribution of amplitude and phase errors may be unknown.…”

Tolerance analysis of reconfigurable monopulse linear antenna arrays using interval arithmetic

“…Those modifications clearly affects the radiated pattern that can significantly differ from the theoretical one. In literature, different methods have been proposed to estimate the pattern performance when errors occurs on the amplitudes and phases value of the control points [14][15][16]. More in detail, under the hypothesis that the errors are statistically independent with Gaussian probability density function, statistical pattern features are computed.…”

An Interval Arithmetic-based robustness evaluation of sub-arrayed linear array antenna architectures

“…Calibration operations should be theoretically simplified, as well, because of the reduced number of control points to be handle, but random errors [12] still remain difficult to identify and correct. Moreover, the techniques proposed in literature in the past decades [12][13][14][15] aimed at evaluating the consequences of random errors in amplitudes/phases/positions on the radiation pattern cannot be considered as fully effective. Indeed, as based on statistical and probabilistic approaches, they can only test a finite set of combinations about the errors affecting the array parameters by knowing the a-priori information on the probability distribution of the errors.…”