scholarly journals About Possibilities of the Probabilistic Form of Information Representation in Military Computing Devices

2021 ◽  
Vol 19 (4) ◽  
pp. 111-117
Author(s):  
N. E. Sapozhnikov ◽  
V. G. Zolotykh ◽  
A. S. Zakharov

At present, digital signal processing involves enormous amounts of computations with large-bit arrays, which are carried out in real time. In connection with the need to solve more and more complex problems, constantly growing requirements are imposed on the main parameters of digital processors (speed, reliability, power consumption, etc.), which determine the computing capabilities of systems with digital signal processing. In turn, the rapid development of microelectronics, its successes make it possible to create more and more high-performance computing systems, which makes it possible to solve more and more complex problems, including in the military sphere. The production of the latest information technology means is a technological task that can be solved exclusively by economically developed countries. Bringing domestic microelectronics to the current world level requires significant investments. Therefore, the study and research of discrete nodes and devices is of the direct practical importance. When developing promising computers, new technological approaches should be applied: minimizing power consumption, maintaining modularity and high computational density within a single node, creating high-speed data transmission with the lowest delays, creating an efficient storage system, and choosing the best types of memory. One of such possible approaches is the use of a non-positional form of information presentation in computing systems for national and military purposes. This gives a number of advantages, the main ones of which are: a decrease (by orders of magnitude) in the hardware volume of computing devices, an increase in the speed of calculations, an increase in the noise immunity of communication channels. To use the above method, it is proposed to include a probabilistic arithmetic device in the information processing device that performs basic arithmetic operations (addition, multiplication, exponentiation, subtraction, division), which are performed without the use of additional algorithms and mechanisms, in contrast to “classical" digital representation of binary information, where all operations are performed on the basis of the addition operation.

Actuators ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 115
Author(s):  
Teemu Sillanpää ◽  
Alexander Smirnov ◽  
Pekko Jaatinen ◽  
Jouni Vuojolainen ◽  
Niko Nevaranta ◽  
...  

Non-contact rotor position sensors are an essential part of control systems in magnetically suspended high-speed drives. In typical active magnetic bearing (AMB) levitated high-speed machine applications, the displacement of the rotor in the mechanical air gap is measured with commercially available eddy current-based displacement sensors. The aim of this paper is to propose a robust and compact three-dimensional position sensor that can measure the rotor displacement of an AMB system in both the radial and axial directions. The paper presents a sensor design utilizing only a single unified sensor stator and a single shared rotor mounted target piece surface to achieve the measurement of all three measurement axes. The sensor uses an inductive measuring principle to sense the air gap between the sensor stator and rotor piece, which makes it robust to surface variations of the sensing target. Combined with the sensor design, a state of the art fully digital signal processing chain utilizing synchronous in-phase and quadrature demodulation is presented. The feasibility of the proposed sensor design is verified in a closed-loop control application utilizing a 350-kW, 15,000-r/min high-speed industrial induction machine with magnetic bearing suspension. The inductive sensor provides an alternative solution to commercial eddy current displacement sensors. It meets the application requirements and has a robust construction utilizing conventional electrical steel lamination stacks and copper winding.


2015 ◽  
Vol 719-720 ◽  
pp. 534-537
Author(s):  
Wen Hua Ye ◽  
Huan Li

With the development of digital signal processing technology, the demand on the signal processor speed has become increasingly high. This paper describes the hardware design of carrier board in high-speed signal processing module, which using Xilinx's newest Virtex-7 FPGA family XC7VX485T chip, and applying high-speed signal processing interface FMC to transport and communicate high-speed data between carrier board and daughter card with high-speed ADC and DAC. This design provides a hardware implementation and algorithm verification platform for high-speed digital signal processing system.


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