array pattern
Antenna Array Pattern Synthesis via Coordinate Descent Method
... patterns from linear to planar array, is presented above. CDM allows changing the fitness function with a mul- tiplication of a weight function P ( ) θ . The function P ( ) θ can be changed any time during the ...
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A Clonal Selection Algorithm for Array Pattern Nulling by Controlling the Positions of Selected Elements
... In this paper, a methodbasedon CLONALG [8] is presented to steer single and double nulls to the directions of interference by controlling only the positions of selectedantenna array elements. The CLONALG is a ...
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A Linear Mutually Coupled Parallel Dipole Antenna Array Failure Correction Using Bat Algorithm
... antenna array system, the array-failure correction is a complicated problem compared with simple side-lobe suppression in antenna array ...the array failure problem further increases under ...
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Pattern Synthesis for the Cylindrical Polarimetric Phased Array Radar (CPPAR)
... for pattern synthesis is developed to efficiently optimize the beamforming weights of multi-objective optimization problem for the ...element pattern is used for cylindrical array pattern ...
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Null Steering In Phased Antenna Array System Using Amplitude Only GA and PSO Palak N. Patel 1, Rizwan Alad2 , Ashish Pandya 3, Prarthan Mehta4
... phased array antenna is used for synthesizing the array pattern with enforcing nulls in the direction of interference while simultaneously preserving the main beam in the direction of the desired ...
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Comparison of the Radiation Pattern of Fractal and Conventional Linear Array Antenna
... Cantor array, as shown in ...Cantor array is generated recursively by replacing 1 by 101 and 0 by 000 at each level of the ...the array pattern for the first four levels of the Cantor ...
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A Pattern Synthesis Method for Large Planar Antenna Array
... Abstract—The pattern synthesis for large antenna arrays is very important because of its wide ...antenna array synthesis techniques for planar antenna array have been developed in the past ...antenna ...
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Synthesis of Thinned Planar Circular Array Antennas Using Modified Particle Swarm Optimization
... circular array that has several advantages over other type of array antenna configurations; such as all-azimuth scan capability, invariant beam pattern in every φ- ...Antenna Array (CCAA) that ...
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Pattern Optimization in an UWB Spiral Array Antenna
... the array radiation pattern, we studied three different approaches, including tapering the antenna elements, using Genetic Algorithm (GA) and using metamaterial cover as a ...spiral array antennas ...
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Synthesis of Thinned Planar Concentric Circular Antenna Arrays --- a Differential Evolutionary Approach
... an array means turning off some elements in a uniformly spaced or periodic array to generate a pattern with low side lobe ...resultant array pattern, they will be considered ...an ...
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Combined Strategies Based on Matrix Pencil Method and Tabu Search Algorithm to Minimize Elements of Non-Uniform Antenna Array
... antenna array is an inverse problem involving finding the solution of multimodal functions with a huge amount of local optima and unknowns (excitation amplitude, phase and position for each ...antenna array ...
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Application of conformal map theory for design of 2-D ultrasonic array structure for ndt imaging application : a feasibility study
... the array element separation is kept larger than λ/2 and the array is simulated to steer to an angle of 45 degrees in both the azimuthal and the elevation ...periodic array layout, when ...the ...
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Microstrip array antenna for automobile radar system
... Although microstrip antenna has several advantages like low profile, light weight and simple to manufacture, it also has several disadvantages like low gain, narrow bandwidth with associated efficiency is low. These ...
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Comparing Radiation Characteristics of Fractal Arrays with Random and Periodic Arrays
... random array performed better than the fractal ...fractal array and random array cause for the one to be more effective as the ...the array holds more elements, the random arrays perform ...
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Synthesis of Optimal Narrow Beam Low Sidelobe Linear Array with Constrained Length
... 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 ...
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Reconfigurable Microstrip Stacked Array Antenna with Frequency and Pattern Characteristics
... technique is used to combine all the substrate layers to reduce the spurious radiation pattern between the feed line and the radiating elements. Hence, the radiating elements (top patches and bottom patches) are ...
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SYNTHESIS OF NON UNIFORM LINEAR ARRAYS USING DOLPH – CHEBYSHEV POLYNOMIAL BY REDUCING SIDE LOBE LEVEL BASED ON MODULATING PARAMETER ARRAY FACTOR
... antenna array, without disturbing the main beam width using doplh – chebyshev ...an array for a specified first side lobe level of -35dB was synthesized using Dolph Chebyshev ...
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Multi beam observations of cosmic radio noise using a VHF radar with beam forming by a Butler matrix
... It is generally known that a radar beam can be steered off the broadside by implying a progressive time- or phase-offset to the individual array antennas. The idea of a Butler-matrix is to generate several ...
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Face Authentication Voice Controlled Robot
... binary pattern operator is an image operator which transforms an image into an array or image of integer labels describing small-scale appearance of the ...
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Index Terms —CMOS camera, Color filter array (CFA), Field Programmable Gate Array (FPGA), Graphical display, I2C interface, Pixel array scanning mechanism.
... as shown in sub-mosaic pattern. Sensor Scanning Mechanism: The CMOS camera sub-system shown in Fig 2. Here CMOS sensor is MT9M011 consist pixel array of 1280*1024. Each pixel is a photo site that will ...
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