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The article describes the concept of building a universal modular multi-channel system for measuring, registration and investigation of noise for various electronic devices, including 1/f noise. Main attention is paid to the principles of construction of the measuring channel with low noise, the ability to work at very low frequencies (including DC) without highpass filter, methods of compensation...
This article offers a method of structural representation of telemetry data, based on displaying the original data onto plane or torus. Such method allows potentially detect the implicit correlation dependences both in single data frame and in sequence of such frames. It offers algorithms of compression based on displaying the original data, represented as bit-form, onto the surface of plane or torus...
We describe a method for determining the position and orientation of an object in a varying magnetic field generated by two flat coils which are arranged horizontally in one plane. We present an algorithm for computing position and orientation of a measurement unit, consisting of a three-axis alternating magnetic field sensor, and a microelectromechanical (MEMS) accelerometer.
This work studies one of the methods of adapting data transmission process in data measuring systems, which involves manipulation of width of the data being transmitted depending on communication channel status. The research was conducted with the simulation model of data transmission system based on the binary symmetric channel with application of the Bose-Chaudhuri-Hocquenghem error correcting code...
This paper presents simple ways of implementing wavelet filters of arbitrary length without any analog-digital conversion and storage devices. Designed wavelet filters are fast, easy to implement, standardized inputs and outputs, and the ability to quickly cascading, restructuring and discrete-analog representation of the results.
This paper presents a set of criteria to help selecting an approximate optimal compression algorithm from the available range. It is shown that the proposed criteria provide a good degree of compression of the telemetry data of various types while improving system performance.
A simple computational method for estimating the frequency of the periodic component of a signal is offered, which is based on the analysis of the numbers of zero-level crossings. It is shown that the proposed method provides acceptable relative estimation errors. Error reduction methods are offered.
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