title: ÐÐµÑÐµÐ´Ð°ÑÐ° Ð¸ Ð¿ÑÐ¸ÐµÐ¼ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² GMSK Ñ Ð¼Ð°Ð»ÑÐ¼ Ð·Ð½Ð°ÑÐµÐ½Ð¸ÐµÐ¼ Ð½Ð¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð¿Ð¾Ð»Ð¾ÑÑ ÑÐ°ÑÑÐ¾Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Transmission and receipt of gmsk signals with a small frequency bandwidth value
Creators: name: Ð§ÑÐ½Ñ Ð¦Ð·ÑÑ Ð°Ð¾
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2024
Subjects: GMSK
Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¸Ð´ÐµÐ½ÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
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Ð½ÐµÐºÐ¾Ð³ÐµÑÐµÐ½ÑÐ½ÑÐ¹ Ð¿ÑÐ¸ÐµÐ¼
ÑÐ°ÑÑÐ¾ÑÐ½ÑÐ¹ Ð´ÐµÑÐµÐºÑÐ¾Ñ
Ð¸Ð½ÑÐµÑÐ²Ð°Ð» Ð°Ð½Ð°Ð»Ð¸Ð·Ð°
automatic identification system
energy spectrum
non-coherent reception
frequency detector
analysis interval

description: ÐÐ±ÑÐµÐºÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ â ÐÐµÑÐµÐ´Ð°ÑÐ° Ð¸ Ð¿ÑÐ¸ÐµÐ¼ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² GMSK Ñ Ð¼Ð°Ð»ÑÐ¼ Ð·Ð½Ð°ÑÐµÐ½Ð¸ÐµÐ¼ Ð½Ð¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð¿Ð¾Ð»Ð¾ÑÑ ÑÐ°ÑÑÐ¾Ñ Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â ÐÑÐ¸ Ð¿Ð°ÐºÐµÑÐ½Ð¾Ð¹ Ð¿ÐµÑÐµÐ´Ð°ÑÐµ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² GMSK Ñ Ð¼Ð°Ð»ÑÐ¼ Ð·Ð½Ð°ÑÐµÐ½Ð¸ÐµÐ¼ Ð½Ð¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð¿Ð¾Ð»Ð¾ÑÑ ÑÐ°ÑÑÐ¾Ñ Ð¿ÑÐ¾Ð²ÐµÑÑÐ¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ¿ÐµÐºÑÑÐ¾Ð² Ð¸ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ÐµÐ¼Ð° Ð¿ÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð½ÐµÐºÐ¾Ð³ÐµÑÐµÐ½ÑÐ½ÑÑ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð² Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸. ÐÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð»Ð¸ÑÑ Ð¾ÑÐºÑÑÑÑÐµ Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½ÑÐµ ÑÐµÑÑÑÑÑ Ð¸ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ Ð¿Ð¾Ð¸ÑÐºÐ° Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸. ÐÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð»Ð¸ÑÑ ÑÑÐµÐ´ÑÑÐ²Ð° Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð°ÑÐ¸Ð¸ (Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹) ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Matlab. Ð Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¸Ð´ÐµÐ½ÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ðµ Ð¿ÐµÑÐµÐ´Ð°ÑÐ° ÑÐ¸Ð³Ð½Ð°Ð»Ð° ÑÑÐµÐ±ÑÐµÑ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¸ ÑÐ¸Ð³Ð½Ð°Ð»Ð° GMSK. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÐµÑÐµÐ´Ð°ÑÐ° Ð¸ Ð¿ÑÐ¸ÐµÐ¼ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² GMSK Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÑÑÑÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ MATLAB. ÐÐ° Ð¿ÑÐ¸ÐµÐ¼Ð½Ð¾Ð¹ ÑÑÐ¾ÑÐ¾Ð½Ðµ Ð´Ð»Ñ Ð´ÐµÐ¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¸ Ð¼Ð¾Ð´ÑÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑÑÑÑ ÑÐ°ÑÑÐ¾ÑÐ½ÑÐ¹ Ð¿ÑÐ¸ÐµÐ¼Ð½Ð¸Ðº Ð¸ Ð¸Ð½ÑÐµÑÐ²Ð°Ð» Ð°Ð½Ð°Ð»Ð¸Ð·Ð°. ÐÐ¾Ð»ÑÑÐµÐ½ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ¿ÐµÐºÑÑÑ Ð¿Ð¾ÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ñ GMSK Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸ÐµÐ¹ Ð´Ð»Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ð¹ Ð¿Ð¾Ð»Ð¾ÑÐ° ÑÐ°ÑÑÐ¾Ñ Ð¸ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸. ÐÐ¾Ð»ÑÑÐµÐ½Ñ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ñ Ð¿ÑÐ¸ÐµÐ¼Ð° ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð½Ð° ÑÐ°ÑÑÐ¾ÑÐ½ÑÐ¹ Ð´ÐµÑÐµÐºÑÐ¾Ñ (Ð½ÐµÐºÐ¾Ð³ÐµÑÐµÐ½ÑÐ½ÑÐ¹ Ð¿ÑÐ¸ÐµÐ¼) Ð¸ Ð²ÐµÑÐ¾ÑÑÐ½Ð¾ÑÑÐ¸ Ð¾ÑÐ¸Ð±Ð¾Ðº Ð¾Ñ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ñ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð²/ÑÑÐ¼ Ð´Ð»Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ð¹. ÐÐ¾ÑÑÑÐ¾ÐµÐ½Ð° Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÑ Ð²ÑÐ±Ð¾ÑÐ° Ð¸Ð½ÑÐµÑÐ²Ð°Ð»Ð° Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð²ÑÐ¾Ð´Ð½Ð¾Ð³Ð¾ ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ð² Ð¿ÑÐ¸ÐµÐ¼Ð½Ð¸ÐºÐµ Ð¿ÑÐ¸ ÑÐ¼ÐµÐ½ÑÑÐµÐ½Ð¸Ð¸ Ð¿Ð¾Ð»Ð¾ÑÑ ÑÐ°ÑÑÐ¾Ñ. ÐÐ¾ÑÑÑÐ¾ÐµÐ½Ð° ÑÑÑÑÐºÑÑÑÐ½Ð°Ñ ÑÑÐµÐ¼Ð° Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¸ ÑÐ´ÐµÐ»Ð°Ð½Ð° ÐµÐµ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸ÐµÐ¼ Ð´Ð¾Ð²ÐµÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð¸Ð½ÑÐµÑÐ²Ð°Ð»Ð° Ð¿ÑÐ¸ Ð²ÑÑÐ¸ÑÐ»ÐµÐ½Ð¸Ð¸ Ð²ÐµÑÐ¾ÑÑÐ½Ð¾ÑÑÐµÐ¹ Ð¾ÑÐ¸Ð±Ð¾Ðº.
description: Object of study is: Transmission and reception of GMSK signals with a small value of the normalized frequency band The aim is that for packet transmission of GMSK signals with a small value of the normalized frequency band, conduct a study of the energy spectra and noise immunity of reception using incoherent processing algorithms. Open educational resources and programs for searching and analyzing information were used. Automation (computer-aided) development tool Matlab was used. In automatic identification system, signal transmission requires GMSK signal modulation. In this work, the transmission and reception of GMSK signals are simulated using MATLAB. At the receiving end, a frequency receiver and an analysis interval are used to demodulate the modulated signal. The energy spectra of a sequence of signals with GMSK modulation for various values of frequency band and transmission speed were obtained by modeling. Algorithms for receiving signals at a frequency detector (incoherent reception) and the probability of errors from the signal-to-noise ratio for various values are obtained. The dependence of the choice of interval for analyzing the input signal in the receiver with a decrease in the frequency band has been constructed. A block diagram of the simulation model was constructed and its description was made with the determination of the confidence interval when calculating the probabilities of errors.