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It has been reached a method for calculating the coefficients for cosine and sinus input components to generate an OFDM symbol for a column of resource cells in a radio frame. It has been developed an algorithm for positioning and finding the position of signal code's element structure for a given bit sequence. It has been reached an analysis of the bit sequence recovery's quality under the condition...
This paper presents a low-power binary phase shift keying (BPSK) pulse generator for ultra-wide-band transmitters. The circuit has been designed based on LC-tank resonators using 0.13 um CMOS technology. Simulation shows −10dB bandwidth of around 3 GHz and power consumption of 2 mW at 100 MHz PRF. Peak-peak amplitude voltage for both symbols ‘1’ and ‘0’ are approximately as large as 1.2V supply voltage...
A new structure of the active RC low-pass filter (LPF) is proposed. This scheme is recommended as a second-order link in more complicated antialiasing filters and spectrum limiters in the input circuits of analog-to-digital converters. It is shown that in the low-pass filter under consideration an independent trimming of the main characteristics, such as a pole frequency, a pole attenuation, and a...
Growth of nanometer electronic components increases requirements to testing of the logic circuits. In frame of conventional testing becomes not enough to detect stuck-at faults at circuits' gate poles it is necessary to test timing defects. One of a convenient and popular model of timing defects is path delay faults. A technique of designing a self-checking synchronous network of Finite State Machines...
The paper considers the problem of increasing the speed of monochrome multitone image (MMI) approximation, which consists in replacement of original palette with palette that has less number of tones. Often, for solving such a problem, the heuristic optimization-search algorithms are used. Their drawback is that, they cannot guarantee to find the solution for the given optimization criteria, which...
In this paper is presented characterization and modeling of the self-heating effect (SHE) for multifinger MOSFET transistors. The mechanism of self heating effect has been analyzed based on simulator which supporting 2D device model. By using Verilog-A language a new model is developed for BSIM6 model which considers SHE effects as well. By using a vector network analyzer an AC conductance method...
The paper is devoted to modeling of single-layer garments as developable median surfaces, modeled in the form of a thin supple shell. The products are modeled in Maple 9.5 and Embarcadero RAD Studio. The modelling of conical skirts considering seams is performed to demonstrate the space form of garments in the gravity field of elastic materials. Also the product aeroman is modelled which brings the...
An m-point nonlocal boundary value problem is posed for quasi-linear differential equations of first order on the plane. Nonlocal boundary value problems are investigated using the algorithm of reducing nonlocal boundary value problems to a sequence of Riemann-Hilbert problems for a generalized analytic function. The conditions for the existence and uniqueness of a generalized solution in the space...
Annotation The principle of regulation of the composition of the fuel mixture for powering the engine with the use of electronic microprocessor systems is developing. The proposed solution helps to improve the fuel and economic indicators of ICE and to reduce the concentration of harmful substances in the exhaust gases. The basis for constructing the automatic control system is the principle of precise...
The thesis deals with operating executional part based on microcontrollers, via QR codes. Was created desktop application written in Java for generating device-oriented QR codes. Was created android application that reads QR code and retrieves information coded in it, followed transition of this information to Arduino microcontroller via Bluetooth. Was created model and software sketch for executive...
Generic instruction based testing methods do not always give good fault coverage for the complex units like Forwarding unit. Hence it becomes important to carefully craft the test which are best for different parts of these units. In this paper we have identified two different test generation methods for different sections of the forwarding unit, namely muxes and comparators which offers better coverage...
Increasing soft error rate and decreasing technological nodes sizes pave a way for Error Correcting Codes (ECC) widespread use in embedded systems. Depending on application safety goals and acceptable performance and area overhead, different codes can be selected. The goal of this paper is to investigate the efficiency and expediency of two of the most prominent ECC codes, Hamming and Hsiao, in the...
The Performance, area, and power are most essential factors to be considered and optimize at every step in the design cycle. Design engineers often need to learn about these factors in order make right decisions on design strategies. Power analysis at lower levels of abstraction can provide more accurate analysis than higher levels. Worst case power can be estimated through high activity pattern generation...
The mezzanine module of angular velocity and the carrier module for the remote control system of the unmanned vessel are designed. The carrier module is designed to control and configure the mezzanine module for speed measuring and mezzanine module for angular velocity measuring.
The purpose of this paper is to introduce a deterministic finite automaton as a model for linked fault representation. It is shown how the model can be used during memory behavior simulation at the register transfer level.
For embedded memories' built-in self-test (BIST) and repair systems gate count and power consumption are among the most critical design constraints. This paper presents an automated method for memory BIST network quality characteristics estimation which is externally seen as “one push button” action. Besides performing area and power-aware memory BIST network design at early stages of SoC design independently...
The current level of industrial development, the widespread introduction of radio and telecommunications systems lead to a deterioration of the electromagnetic environment. The increased level of out-of-band radiation of radio transmitting devices for various purposes, industrial interference, interference from electronic countermeasures systems, as well as interference caused by various natural phenomena,...
Transients of operational amplifiers (OA) with a unipolar circuit of RC-correction in the large signal operation are considered. In order to increase the fast response, the differential stages with various kinds of nonlinearity are used as a driver of the correction capacity: the output current confinement, the dead band in the central section of the passage characteristic, the passage characteristics...
The article considers the fundamentals of logical synthesis of digital nodes of electronic computer on base of current realization of threshold logic. The examples of logical and circuit description of combinational and sequential logical elements and the results of their computer simulation are given. It is concluded that the proposed approach to the threshold synthesis of digital structures in current...
The secular outcome of our investigation is development of new monitoring service for glucose control related to diabetes. It is based on the main results of research: 1) New innovative wearable sensor that carry non-invasive measurement of glucose level. Sensor uses several independent technologies, simultaneously: radio-frequency with different levels of signal, ultrasonic, electromagnetic and thermal;...
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