Digital Signal Processing

1907 Submissions

[7] viXra:1907.0498 [pdf] submitted on 2019-07-25 09:08:45

Sixth Generation Cellular Network

Authors: George Rajna
Comments: 36 Pages.

Future wireless data networks will have to reach higher transmission rates and shorter delays, while supplying an increasing number of end devices. [21] Researchers at Northwestern University, the University of Bath, and the University of Sydney have developed a new network approach to topic models, machine learning strategies that can discover abstract topics and semantic structures within text documents. [20] To achieve remarkable results in computer vision tasks, deep learning algorithms need to be trained on large-scale annotated datasets that include extensive informationabout every image. [19] Brian Mitchell and Linda Petzold, two researchers at the University of California, have recently applied model-free deep reinforcement learning to models of neural dynamics, achieving very promising results. [18]
Category: Digital Signal Processing

[6] viXra:1907.0488 [pdf] submitted on 2019-07-26 00:30:43

De-noising Spacecraft Attitude and Rate Data using DWT

Authors: B. Ravi Sankar, S. Alamelu Mangai
Comments: 5 Pages.

In this paper, de-noising of satellite attitude and rate data using discrete wavelet transform is presented. The mission objective of any remote sensing satellite is to produce an image. The image is taken on board the spacecraft, and then downloaded using a Radio Frequency link. The processing of the image is done at ground. The attitude quaternion and body rates are part of the down linked data. These data had to be pre-processed to remove the noise. Conventional methods employ taking the Fourier transform and removing the high frequency component through filtering. The de-noising of attitude and rate data is important to make the final data product such as image smoother.
Category: Digital Signal Processing

[5] viXra:1907.0469 [pdf] submitted on 2019-07-24 10:45:10

Ultrathin Transistor Computer Chips

Authors: George Rajna
Comments: 55 Pages.

To produce the new ultra-thin transistor, calcium fluoride was selected as the insulating material. [34] University of Illinois electrical engineers have cleared another hurdle in high-power semiconductor fabrication by adding the field's hottest material-beta-gallium oxide-to their arsenal. [33] Transistors are tiny switches that form the bedrock of modern computing; billions of them route electrical signals around inside a smartphone, for instance. Quantum computers will need analogous hardware to manipulate quantum information. [32] "The realization of such all-optical single-photon devices will be a large step towards deterministic multi-mode entanglement generation as well as high-fidelity photonic quantum gates that are crucial for all-optical quantum information processing," says Tanji-Suzuki. [31] Researchers at ETH have now used attosecond laser pulses to measure the time evolution of this effect in molecules. [30] A new benchmark quantum chemical calculation of C2, Si2, and their hydrides reveals a qualitative difference in the topologies of core electron orbitals of organic molecules and their silicon analogues. [29] A University of Central Florida team has designed a nanostructured optical sensor that for the first time can efficiently detect molecular chirality-a property of molecular spatial twist that defines its biochemical properties. [28] UCLA scientists and engineers have developed a new process for assembling semiconductor devices. [27] A new experiment that tests the limit of how large an object can be before it ceases to behave quantum mechanically has been proposed by physicists in the UK and India. [26] Phonons are discrete units of vibrational energy predicted by quantum mechanics that correspond to collective oscillations of atoms inside a molecule or a crystal. [25]
Category: Digital Signal Processing

[4] viXra:1907.0258 [pdf] submitted on 2019-07-16 01:41:49

An Interesting Insight Into Considering & Using Grobner Bases/boolean Rings in the Context of P-Space Involving Smart Devices/iot/hpc/hardware/software/firmware Based Heterogeneous Computing Environments – Towards Next Generation Smart Applications for ci

Authors: N.T.Kumar
Comments: 2 Pages. Short Communication & Simple Suggestion

An Interesting insight into Considering & Using Grobner Bases/Boolean Rings in the Context of P-SPACE involving Smart Devices/IoT/HPC/Hardware/Software/Firmware based Heterogeneous Computing Environments – Towards Next Generation Smart Applications for Circadian Rhythms [CR] R&D.
Category: Digital Signal Processing

[3] viXra:1907.0225 [pdf] submitted on 2019-07-13 08:02:23

Magnetic Memory Speeds 1000 Times

Authors: George Rajna
Comments: 48 Pages.

Now a method that can potentially reduce energy consumption in magnetic memory devices and improve their speeds is advancing at Purdue University. [31] McHenry's group, in collaboration with the National Energy Technology Laboratory (NETL), NASA Glenn Research Center, and North Carolina State University, are designing a two and half kilowatt motor that weighs less than two and half kilograms. [30] Single-molecule magnets (SMMs) have been attracting a lot of attention recently. This is because of the increased demand for faster, longer-lasting and lower-energy IT systems, and the need for higher data storage capacity. [29] Researchers have discovered that using an easily made combination of materials might be the way to offer a more stable environment for smaller and safer data storage, ultimately leading to miniature computers. [28]
Category: Digital Signal Processing

[2] viXra:1907.0200 [pdf] submitted on 2019-07-11 09:22:55

Computer Made Using Bacteria

Authors: George Rajna
Comments: 77 Pages.

"Our bacterially produced graphene material will lead to far better suitability for product development," Meyer says. [46] Physicists at the University of Innsbruck are proposing a new model that could demonstrate the supremacy of quantum computers over classical supercomputers in solving optimization problems. [45] Using data from the CMS experiment there, the researchers studied the entropy resulting from entanglement within the proton. [44] A German-Austrian research team is now presenting the largest entangled quantum register of individually controllable systems to date, consisting of a total of 20 quantum bits. [43] Neill is lead author of the group's new paper, "A blueprint for demonstrating quantum supremacy with superconducting qubits," now published in the journal Science. [42] Physicists at ETH Zurich have now demonstrated an elegant way to relax this intrinsic incompatibility using a mechanical oscillator formed by a single trapped ion, opening up a route for fundamental studies and practical uses alike. [41] Physical experiments were performed by Schiffer's team at the University of Illinois at Urbana-Champaign and were funded by the U.S. Department of Energy's Office of Science. [40] Novel insight comes now from experiments and simulations performed by a team led by ETH physicists who have studied electronic transport properties in a one-dimensional quantum wire containing a mesoscopic lattice. [39] Femtosecond lasers are capable of processing any solid material with high quality and high precision using their ultrafast and ultra-intense characteristics. [38] To create the flying microlaser, the researchers launched laser light into a water-filled hollow core fiber to optically trap the microparticle. Like the materials used to make traditional lasers, the microparticle incorporates a gain medium. [37] Lasers that emit ultrashort pulses of light are critical components of technologies, including communications and industrial processing, and have been central to fundamental Nobel Prize-winning research in physics. [36]
Category: Digital Signal Processing

[1] viXra:1907.0156 [pdf] submitted on 2019-07-09 13:28:36

Revolutionize Information Transmission

Authors: George Rajna
Comments: 43 Pages.

A research team led by physicists at the University of California, Riverside, has observed, characterized, and controlled dark trions in a semiconductor-ultraclean single-layer tungsten diselenide (WSe2)-a feat that could increase the capacity and alter the form of information transmission. [30] Researchers at the U.S. Naval Research Laboratory (NRL) developed a new technique that could enable future advancements in quantum technology. [29] University of Toronto Engineering researchers have combined two emerging technologies for next-generation solar power-and discovered that each one helps stabilize the other. [28] Photoresponsive flash memories made from organic field-effect transistors (OFETs) that can be quickly erased using just light might find use in a host of applications, including flexible imaging circuits, infra-red sensing memories and multibit-storage memory cells. [27] Recent research from Kumamoto University in Japan has revealed that polyoxometalates (POMs), typically used for catalysis, electrochemistry, and photochemistry, may also be used in a technique for analyzing quantum dot (QD) photoluminescence (PL) emission mechanisms. [26] Researchers have designed a new type of laser called a quantum dot ring laser that emits red, orange, and green light. [25] The world of nanosensors may be physically small, but the demand is large and growing, with little sign of slowing. [24] In a joint research project, scientists from the Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI), the Technische Universität Berlin (TU) and the University of Rostock have managed for the first time to image free nanoparticles in a laboratory experiment using a highintensity laser source. [23] For the first time, researchers have built a nanolaser that uses only a single molecular layer, placed on a thin silicon beam, which operates at room temperature. [22] A team of engineers at Caltech has discovered how to use computer-chip manufacturing technologies to create the kind of reflective materials that make safety vests, running shoes, and road signs appear shiny in the dark. [21] In the September 23th issue of the Physical Review Letters, Prof. Julien Laurat and his team at Pierre and Marie Curie University in Paris (Laboratoire Kastler Brossel-LKB) report that they have realized an efficient mirror consisting of only 2000 atoms. [20]
Category: Digital Signal Processing