46-57

UDC 681.327.7
DOI: 10.15350/2306-2819.2017.4.46

SIMULATION PROGRAM OF THE EFFECT OF PARAMETERS OF A MAGNETIC
INFORMATION RECORDING CHANNEL ON ITS AMPLITUDE-FREQUENCY
AND PHASE-FREQUENCY CHARACTERISTICS

V. N. Leuhin
Volga State University of Technology,
3, Lenin Square, Yoshkar-Ola, 424000, Russian Federation
E-mail: LeuhinVN@volgatech.net

ABSTRACT

Introduction. The need for information storage is an urgent problem. The main information carries are hard disks, magnetic tapes, optical disks (CD, DVD, Blu-ray, FMD disks), electronic memory. In spite of some disadvantages, for example, the impossibility of providing fast access, magnetic tape recording has a dominant position in this segment. The main sphere of application is high reliability and low-cost archival data storage. Qualitative indices of magnetic recording (an amplitude-wave characteristic, a dynamic range, an EMF value (electromotive force) and others) are determined by tens of recording mode parameters. It is rather difficult to check them experimentally and the analytic representation is described by complex equations. The purpose of the research. The program for magnetic recording process simulation and the information display has been developed. Physical laws of electric and magnetic fields transformation during magnetic recording have been considered. Results. The program allows calculating and plotting characteristic curves of such parameters of the magnetic recording-information playback process as amplitude-wave and phase-wave characteristics, the dynamic range depending on playback head parameters (the type of the head, its design and magnetic parameters), coating parameters (the type of coating, its magnetic properties), recording-playback channel parameters (the tape movement rate, current magnitude of high-frequency biasing, the size of the gap between the head and the tape). The program has been developed on the basis of the programming language С⁺⁺.

KEYWORDS

magnetic recording; information carrier; amplitude-phase characteristic; dynamic range; simulation

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For citation: Leuhin V. N. Simulation Program of the Effect of Parameters of a Magnetic Information Recording Channel on its Amplitude-Frequency and Phase-Frequency Characteristics. Vestnik of Volga State University of Technology. Ser.: Radio Engineering and Infocommunication Systems. 2017. No 4 (36). Pp. 46-57. DOI: 10.15350/2306-2819.2017.4.46