title: ÐÐ¾ÑÑÑÐ¾ÐµÐ½Ð¸Ðµ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ SDR-Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ñ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑÑÑ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð¿ÑÐ¸ÐµÐ¼Ð° ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð² ÑÐ¸ÑÑÐµÐ¼Ðµ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¸Ð´ÐµÐ½ÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ ÑÑÐ´Ð¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Construction based on SDR-platform of the signal formation and reception equipment in the automatic identification system
Creators: name: ÐÑÐ»ÐµÑÐ¾Ð², ÐÐ³Ð¾Ñ
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: 2023
Subjects: Ð Ð°Ð´Ð¸Ð¾Ð»Ð¾ÐºÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐµ ÑÐ¸Ð³Ð½Ð°Ð»Ñ
ÐºÐ²Ð°Ð´ÑÐ°ÑÑÑÐ½Ð¾Ðµ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
ÑÐ¸Ð»ÑÑÑ Ð³Ð°ÑÑÑÐ°
Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½ÑÐ¹ ÐºÐ¾Ð³ÐµÑÐµÐ½ÑÐ½ÑÐ¹ Ð¿ÑÐ¸ÐµÐ¼
gaussian filter
noise immunity
optimal coherent reception

description: ÐÐ±ÑÐµÐºÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ â ÑÐ¸Ð³Ð½Ð°Ð»Ñ Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸ÐµÐ¹ GMSK. Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÐµÐ¹ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð³Ð¾ ÐºÐ²Ð°Ð´ÑÐ°ÑÑÑÐ½Ð¾Ð³Ð¾ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð´ÐµÐ¼Ð¾Ð´ÑÐ»ÑÑÐ¸Ð¸ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð´Ð»Ñ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ÐµÐ¼Ð° ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² ÐÐÐ¡ Ñ Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¸ÐµÐ¹ GMSK Ð¿ÑÑÐµÐ¼ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð² ÐºÐ¾Ð³ÐµÑÐµÐ½ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐ¸ÐµÐ¼Ð°, ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÑ Ð½Ð° SDR Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ðµ. ÐÐ»Ñ ÐºÐ¾ÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐµÐ³Ð¼ÐµÐ½ÑÐ° ÐÐÐ¡, Ñ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¾Ð¹ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð½Ð° Ð±Ð¾ÑÑÑ ÑÐ¿ÑÑÐ½Ð¸ÐºÐ°, ÑÑÐµÐ±ÑÐµÑÑÑ Ð¼Ð°Ð»Ð¾Ð³Ð°Ð±Ð°ÑÐ¸ÑÐ½Ð°Ñ Ð¸ Ð¼Ð°Ð»Ð¾Ð¿Ð¾ÑÑÐµÐ±Ð»ÑÑÑÐ°Ñ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑÑÐ°. ÐÐ»Ñ ÑÐ¿ÑÐ¾ÑÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐµÐ³Ð¼ÐµÐ½ÑÐ° Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑÑÑ Ð´Ð»Ñ Ð¼Ð°Ð»ÑÑ ÑÑÐ´Ð¾Ð² ÑÑÐµÐ±ÑÐµÑÑÑ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑÑÑ Ð¼ÐµÐ½ÑÑÐµÐ¹ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸, Ð½Ð¾ Ð¼Ð°Ð»ÑÑ Ð³Ð°Ð±Ð°ÑÐ¸ÑÐ¾Ð² Ð¸ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÑÑÐ°Ð´Ð¸ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¸Ð½ÑÐµÑÑÐµÐ¹ÑÐ¾Ð² Ð´Ð»Ñ Ð¿Ð¾Ð´ÐºÐ»ÑÑÐµÐ½Ð¸Ñ Ð²ÑÐµÐ²Ð¾Ð·Ð¼Ð¾Ð¶Ð½ÑÑ ÑÐ¸ÑÑÐ¾Ð²ÑÑ ÑÑÑÑÐ¾Ð¹ÑÑÐ² (ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÑ, ÑÐµÐ»ÐµÑÐ¾Ð½Ñ Ð¸ Ð¿Ñ.). Ð­ÑÐ¾ ÑÑÐµÐ±ÑÐµÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÐ½Ð¸Ð²ÐµÑÑÐ°Ð»ÑÐ½ÑÑ Ð°Ð½Ð°Ð»Ð¾Ð³Ð¾-ÑÐ¸ÑÑÐ¾Ð²ÑÑ Ð¼Ð¾Ð´ÑÐ»ÐµÐ¹ ÐÐÐ¡, ÑÐ¿Ð¾ÑÐ¾Ð±Ð½ÑÑ ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°ÑÑ Ð¿ÑÐ¾ÑÐ¾ÐºÐ¾Ð»Ñ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð´Ð»Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÐºÐ°Ð½Ð°Ð»Ð¾Ð². Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¼ÐµÑÐ¾Ð´Ñ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð¹ ÑÐ°ÑÑÐ¸ ÑÐ°Ð´Ð¸Ð¾Ð¼Ð¾Ð´ÐµÐ¼Ð° Ð´Ð»Ñ ÐÐÐ¡ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ SDR Ð¿Ð»Ð°ÑÑÐ¾ÑÐ¼Ñ. ÐÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð° ÑÑÐ½ÐºÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð°Ñ ÑÑÐµÐ¼Ð° Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ ÑÐ°Ð´Ð¸Ð¾Ð¼Ð¾Ð´ÐµÐ¼Ð°. ÐÐ¾Ð»ÑÑÐµÐ½Ñ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ñ ÐºÐ¾Ð³ÐµÑÐµÐ½ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐ¸ÐµÐ¼Ð° Ð¸ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ²Ð°Ð´ÑÐ°ÑÑÑÐ½Ð¾Ð¹ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² GMSK. ÐÐ¾ÐºÐ°Ð·Ð°Ð½ ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð²ÑÐ¸Ð³ÑÑÑ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÑ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð¾Ð² Ð¿Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ Ñ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ð¼ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¿ÑÐ¸ÐµÐ¼Ð° Ð¿ÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ Ð¿Ð¾ÑÐ»ÐµÐ´ÐµÑÐµÐºÑÐ¾ÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð². Ð£ÑÑÐµÐ½Ñ ÑÐµÑÐ¼Ð¸Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð¿ÑÐµÐ´Ð¼ÐµÑÐ½Ð¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸ Ð¸ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ñ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½ÑÐµ ÑÑÐµÐ´ÑÑÐ²Ð° Ð´Ð»Ñ ÑÐµÑÐµÐ½Ð¸Ñ Ð·Ð°Ð´Ð°Ñ. ÐÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¾ ÑÐ¿ÐµÑÐ¸Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ðµ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾-Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ MATLAB.
description: The object of the study is signals with GMSK modulation. The purpose of work â definition of possibilities of use of methods of digital quadrature formation and demodulation of signals for increase of noise immunity of reception of AIS signals with GMSK modulation by application of the algorithms of the coherent reception, realized on SDR-platform. For the space segment of AIS, with signal processing on board the satellite, small-sized and low-consumption hardware is required. For the simplified segment of hardware for small ships it is required to use less power, but small size and use traditional interfaces to connect all kinds of digital devices (computers, telephones, etc.). This requires the development of universal analog-digital AIS modules, capable of implementing transmission protocols for different channels. In work methods of construction of digital part of a radio modem for AIS based on SDR-platform are offered. The functional scheme of radio modem construction is resulted. The algorithms of coherent reception are obtained and the results of simulation of quadrature processing of GMSK signals are given. The energy gain of the proposed algorithms in comparison with the existing method of reception when using post-detector analysis of signals is shown. The terminological features of the subject area are considered, and software tools are used to solve problems. Specialized software was used: MATLAB.