[PDF] Top 20 A Subarray Design Method for Low Sidelobe Levels

... Using irregular-shaped subarrays is a popular choice to avoid grating lobes [5, 6]. With the consideration of system cost, usually only one or two types of subarrays are used to partition an aperture, such as L-octomino ... See full document

... waveform design options for a rainfall measurement mode for the RA-2 Radar Altimeter due to fly on E SA ’s EN VIS AT mission (ESTEC Contract ...altimeter design. The range sidelobe level requirement ... See full document

... the design of transmitter components to withstand high peak power is the most challenging ...compression method combines both the benefits of long duration and short duration pulses to enhance range and ... See full document

... the process of constructing transcendental functions, we through the filter, simulation system of generalized inverse matrix, distance weighted on the prior model, and studied the influence of different filters on the ... See full document

... various trial sets. Sandler [5] expanded a term for each element in series. Harrington [6] presented a method for reducing sidelobe levels of linear array by using nonuniform element spacing, while ... See full document

... achieve low side lobe characteristics, excitation coefficients for array elements are determined by a feeding ...achieving low sidelobe and wide frequency characteristics, a density tapered array ... See full document

... iterative method to reduce the sidelobe levels of uniformly excited N -elements linear arrays by employing unequal ...His method can reduce the sidelobe level to about 2/N times the ... See full document

... It is only in the case of an array composed of equally spaced isotropic elements that the optimal excitations are known. Dolph was the first to propose a procedure that is optimal only for element spacings that are ... See full document

... The first optimum antenna array distribution is the binomial distribution proposed by stone. As is well known, the amplitude weights of the elements in the array correspond to the binomial coefficients and resulting ... See full document

... To design a leak filter, as simulations have shown, suitable selection of filter parameters δ, β and γ are very ...the sidelobe level to be lowered, ...is low, the scaling factor is much lower than ... See full document

... antenna design for generating low sidelobe patterns as they have radial symmetry and an invariant beam in the azimuthal ...in low EMI ...generate low sidelobe patterns from ... See full document

... a design method for the creation of line source that results an antenna radiation pattern consisting of a narrow beam with low ...resultant sidelobe levels are different on the two ... See full document

... Thinning an array means turning off some of the elements from a uniformly spaced or periodic array to generate a pattern with low sidelobe levels. Typical applications for thinned array include ... See full document

... Uniform linear arrays are analyzed and designed by several authors [1-3]. They yield radiation patterns with one main lobe and symmetric side lobe levels. Radiation patterns are specified in terms of main ... See full document

... popular method for enhancing the signal from the desired direction while suppressing all signals arriving from other directions as well as the background noise [1], but its rela- tively high sidelobe level ... See full document

... This paper focuses on the pattern synthesis of 4D planar arrays, taking into account the mutual coupling and platform effect. Although the pattern synthesis of 4D planar arrays has been reported in [9– 11] where ... See full document

... From this perspective, especially the mitigation of the torque fluctuations is a key issue for the design of a PM machine because its result may simultaneously affect the machine performance. Especially, in the ... See full document

... of design of digital FIR high pass filter using predator prey optimization and hybrid predator prey optimization (HPPO) ...search method and exploratory move is a local search ...filter design ... See full document

... ultra low sidelobe levels to meet the requirements of point to point communications in various practical applications by using Meta heuristic optimization techniques like Genetic Algorithm (GA), ... See full document

... Optimization of fermentation medium and extraction process was done using one factor at-a-time method. The production media was selected for the optimization study. Flasks containing media, which was not ... See full document