Circular antenna array has gained immense popularity in the field of communications nowadays. It has proved to be a better alternative over other types of antenna array configuration due to its all-azimuth scan capability, and a beam pattern which can be kept invariant. This paper is basically concerned with the thinning of a large multiple concentric circular ring arrays of uniformly excited i...

Thinning array antennas have become one of the best approaches towards minimizing side lobes and achieving required FNBW SLL. Unlike all element arrays, thinning systematically removes some fraction elements activates remaining to obtain intended pattern without degrading performance antenna array. An evolutionary algorithm is gaining growth in providing better optimization solutions than other...

Thinning is the removal of contour pixels/points of connected components in an image to produce their skeleton with retained connectivity and structural properties. The output requirements of a thinning procedure often vary with application. This paper proposes a sequential algorithm that is very easy to understand and modify based on application to perform the thinning of multi-dimensional bin...

This paper proposes an effective fingerprint identification system with hardware block for thinning stage processing of a verification algorithm based on minutiae with 39% occupation of 32-bit RISC microprocessor cycle. Each step of a fingerprint algorithm is analyzed based on FPGA and ARMulator. This paper designs an effective hardware scheme for thinning stage processing using the Verilog-HDL...

This paper proposes two topics for a high performance fingerprint sensor. A modified capacitive detection circuit of charge sharing scheme is proposed, which shows 40% reduction of power consumption and 90% improvement of difference between a ridge and valley sensing voltage than typical scheme. This paper also proposes an effective fingerprint identification system with hardware unit (thinning...

Massive multiple input multiple output antenna array is crucial for the fifth generation wireless communication. Proper antenna array design can reduce interference among different signals and generate desirable beamforming. Sparse antenna array is able to form narrower beam with lower sidelobe than equally spaced antenna array given the same number of array elements. However, determining the p...