A Software Defined Radio (SDR) is defined as a radio in which the receive digitization is performed at some stage downstream from the antenna, typically after wideband filtering, low noise amplification, and down conversion to a lower frequency in subsequent stages with a reverse process occurring for the transmit digitization. In an SDR, Digital Signal Processing in flexible and reconfigurable...

In this paper, four types of fractional Fourier cosine and sine Laplace weighted convolutions are defined, the corresponding convolution theorems associated with transform, transform derived in detail. Furthermore, relationship between (sine) existing studied, Young's type theorem is also investigated. addition, as an application for (sine)-Laplace convolution, system convolution-type integral ...

The diversity created during the searching process in swarm intelligence algorithms plays an important part that affects the exploration ability. The searching result can be further improved if the algorithm gives consideration to both the exploitation and the exploration. In this paper, the evolved bat algorithm is improved by replacing the fixed value, which is determined by the media, with a...

In this letter, we established a traveling wave solution by using cosine function algorithm for Gardnerequation and (2+1)-dimensional breaking soliton system. The cosine method is used to obtain theexact solution.

In this paper, regular fast algorithms for discrete cosine transform (DCT) and discrete sine transform (DST) of types II–IV are proposed and mapped onto pipeline architectures. The algorithms are based on the factorization of transform matrices described earlier by Wang. The regular structures of the algorithms are advantageous when mapping them onto hardware although such algorithms do not rea...

Frequency-domain and subband implementations improve the computational efficiency and the convergence rate of adaptive schemes. The well-known multidelay adaptive filter (MDF) belongs to this class of block adaptive structures and is a DFT-based algorithm. In this paper, we develop adaptive structures that are based on the trigonometric transforms DCT and DST and on the discrete Hartley transfo...

This study investigates the scheduling problem of multiple agile optical satellites with large-scale tasks. is difficult to solve owing time-dependent characteristic satellites, complex constraints, and considerable solution space. To problem, we propose a method based on an improved sine cosine algorithm task merging approach. We first establish model constraints observation action describe pr...

In this paper, a new scheme employing the time-recursive approach to compute the discrete cosine transform (DCT) and discrete sine transform (DST) is presented. Using such approach, parallel lattice structure that can dually generate the DCT and DST simultaneously is developed. The resulting architecture is regular, module, and without global communication and can be applied to any transform si...

The mapping of damping ratios and factors by Sine-Cosine Algorithm (SCA) is significant in the analysis low frequency oscillations generated an integrated network having multiple conventional renewable energy sources. Multiple random models with unknown search spaces uncertain conditions constraints, which incorporate fluctuation solutions towards or outwards at initial stage for solving real-t...