Bassiouni, Mahmoud M. Hegazy, Islam Rizk, Nouhad El-Dahshan, El-Sayed A. Salem, Abdelbadeeh M.
Published in
Circuits, Systems, and Signal Processing
One of the pandemics that have caused many deaths is the Coronavirus disease 2019 (COVID-19). It first appeared in late 2019, and many deaths are increasing day by day until now. Therefore, the early diagnosis of COVID-19 has become a salient issue. Additionally, the current diagnosis methods have several demerits, and a new investigation is requir...
Mohammed Zelmat Lamini, El-Sedik Tagzout, Samir Belbachir, Hacène Belouchrani, Adel
Published in
Circuits, Systems, and Signal Processing
Kaur, Taranjit Gandhi, Tapan Kumar
Published in
Circuits, Systems, and Signal Processing
The coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. COVID-19 is found to be the most infectious disease in last few decades. This disease has infected millions of people worldwide. The inadequate availability and the limited sensitivity of the testing kits have motivated the clinicians and the scientist to us...
Jing, Shaoxue
Published in
Circuits, systems, and signal processing
Entropy has been widely applied in system identification in the last decade. In this paper, a novel stochastic gradient algorithm based on minimum Shannon entropy is proposed. Though needing less computation than the mean square error algorithm, the traditional stochastic gradient algorithm converges relatively slowly. To make the convergence faste...
Cintra, R. J.
Published in
Circuits, Systems, and Signal Processing
Approximate methods have been considered as a means to the evaluation of discrete transforms. In this work, we propose and analyze a class of integer transforms for the discrete Fourier, Hartley, and cosine transforms (DFT, DHT, and DCT), based on simple dyadic rational approximation methods. The introduced method is general, applicable to several ...
Elbir, Ahmet M.
Published in
Circuits, Systems, and Signal Processing
This paper proposes a new sparse array geometry for 2-D (azimuth and elevation) direction-of-arrival (DOA) estimation. The proposed array geometry is V-shaped sparse array, and it is composed of two linear portions which are crossing each other. The degrees of freedom of the sparse array are enhanced by sparse sampling property. In this respect, V-...
Arish, S. Sharma, R. K.
Published in
Circuits, Systems, and Signal Processing
In today’s world, high-power computing applications such as image processing, digital signal processing, graphics, robotics require enormous computing power. These applications use matrix operations, especially matrix multiplication. Multiplication operations require a lot of computational time and are also complex in design. We can use field-progr...
Wang, Guoqiu Chen, Yong Yi, Dingxun
Published in
Circuits, Systems, and Signal Processing
The design of filter banks with multiple centers of symmetry is very difficult. In this paper, a space decomposition of an orthogonal projection matrix is studied. This decomposition plays a key role in a new complete factorization theory. In addition, the concept of a minimal starting block matrix is proposed and is used to establish a new factori...
Khan, Shujaat Naseem, Imran Togneri, Roberto Bennamoun, Mohammed
Published in
Circuits, Systems, and Signal Processing
In this paper, we propose a novel adaptive kernel for the radial basis function neural networks. The proposed kernel adaptively fuses the Euclidean and cosine distance measures to exploit the reciprocating properties of the two. The proposed framework dynamically adapts the weights of the participating kernels using the gradient descent method, the...
Xu, Linsen Yang, Wei Tian, Hongxian
Published in
Circuits, Systems, and Signal Processing
Authors of this article [5] were not aware of the work by Romero and Jimenez [4] and would like to clarify the differences below.
