title: ÐÐµÑÐ¾Ð´Ñ ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸Ð¸ ÑÑÑÐµÐºÑÐ° ÐÐ¾Ð¿Ð»ÐµÑÐ° Ð² ÑÐ¸ÑÑÐµÐ¼Ð°Ñ Ð³Ð¸Ð´ÑÐ¾Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ²ÑÐ·Ð¸ Ð¿ÑÐ¸ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ñ OFDM
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: Doppler effect correction methods for underwater acoustic OFDM communication systems
Creators: name: Ð§Ð¸Ð»Ð¸Ð½Ð³Ð°ÑÐ¾Ð², ÐÑÑÐµÐ¼
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: 2022
Subjects: ÐÐ¾Ð¿Ð¿Ð»ÐµÑÐ° ÑÑÑÐµÐºÑ
Ð¡Ð²ÑÐ·Ñ
Ð³Ð¸Ð´ÑÐ¾Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¸Ð¹ ÐºÐ°Ð½Ð°Ð» ÑÐ²ÑÐ·Ð¸
Ð¿ÐµÑÐµÐ´Ð°ÑÐ¾ÑÐ½Ð°Ñ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ° ÐºÐ°Ð½Ð°Ð»Ð°
Ð¿Ð¾Ð´Ð²Ð¸Ð¶Ð½ÑÐµ Ð¾Ð±ÑÐµÐºÑÑ
Ð¿Ð¾Ð¼ÐµÑ Ð¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÑ
underwater acoustic channel
channel frequency response
mobile units
error-rate performance

description: ÐÐ±ÑÐµÐºÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ â Ð³Ð¸Ð´ÑÐ¾Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¸Ð¹ ÐºÐ°Ð½Ð°Ð» ÑÐ²ÑÐ·Ð¸ Ð¼ÐµÐ¶Ð´Ñ Ð¿Ð¾Ð´Ð²Ð¸Ð¶Ð½ÑÐ¼Ð¸ Ð¾Ð±ÑÐµÐºÑÐ°Ð¼Ð¸. Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ðµ ÑÐ°Ð±Ð¾ÑÐ¾ÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÐ¸ Ð³Ð¸Ð´ÑÐ¾Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ¼Ð°, Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑÑÐµÐ³Ð¾ ÑÐ¸Ð³Ð½Ð°Ð»Ñ Ñ OFDM, Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð¿Ð¾Ð´Ð²Ð¸Ð¶Ð½ÑÑ Ð°Ð±Ð¾Ð½ÐµÐ½ÑÐ¾Ð² Ð¿ÑÑÐµÐ¼ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð±Ð»Ð¾ÐºÐ° ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸Ð¸ ÑÑÑÐµÐºÑÐ° ÐÐ¾Ð¿Ð»ÐµÑÐ°. Ð ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ Ð¼ÐµÑÐ¾Ð´Ñ ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸Ð¸ ÑÑÑÐµÐºÑÐ° ÐÐ¾Ð¿Ð»ÐµÑÐ°. ÐÐ»Ñ Ð¿ÑÐ¾Ð²ÐµÑÐºÐ¸ ÑÐ°Ð±Ð¾ÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð°ÑÑÐ²Ð°ÐµÐ¼Ð¾Ð³Ð¾ Ð±Ð»Ð¾ÐºÐ° ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸Ð¸ ÑÑÑÐµÐºÑÐ° ÐÐ¾Ð¿Ð»ÐµÑÐ° ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð° Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¿Ð¾ Ð³Ð¸Ð´ÑÐ¾Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¾Ð¼Ñ ÐºÐ°Ð½Ð°Ð»Ñ. Ð¡ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¼Ð¾Ð³ÑÑ Ð±ÑÑÑ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ñ Ðº ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÐºÐ°Ð½Ð°Ð»Ð° Ð¸ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ° ÐÐ¾Ð¿Ð»ÐµÑÐ° Ð´Ð»Ñ Ð´Ð¾ÑÑÐ¸Ð¶ÐµÐ½Ð¸Ñ Ð·Ð°Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ ÑÐ¸ÑÑÐµÐ¼Ñ. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼Ð¸ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÑÑÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð°Ñ ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸Ð¸ ÑÑÑÐµÐºÑÐ° ÐÐ¾Ð¿Ð»ÐµÑÐ° Ð´Ð»Ñ ÑÐ¸ÑÑÐµÐ¼ Ð³Ð¸Ð´ÑÐ¾Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ²ÑÐ·Ð¸, Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑÑÐ¸Ñ ÑÐ¸Ð³Ð½Ð°Ð»Ñ Ñ OFDM, Ð¸ Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¿Ð¾ Ð³Ð¸Ð´ÑÐ¾Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¾Ð¼Ñ ÐºÐ°Ð½Ð°Ð»Ñ. ÐÑÐ¾Ð¼Ðµ ÑÐ¾Ð³Ð¾ Ð¿ÑÐ¾Ð´ÐµÐ¼Ð¾Ð½ÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¾, ÑÑÐ¾ Ð²ÑÑÐ¸ÑÐ»Ð¸ÑÐµÐ»ÑÐ½Ð°Ñ ÑÐ»Ð¾Ð¶Ð½Ð¾ÑÑÑ ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼Ð° ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸Ð¸ ÑÑÑÐµÐºÑÐ° ÐÐ¾Ð¿Ð»ÐµÑÐ° Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ chirp-z Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð¾ 10 ÑÐ°Ð· Ð½Ð¸Ð¶Ðµ, ÑÐµÐ¼ Ñ ÑÑÐ°Ð´Ð¸ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¿Ð¾Ð´ÑÐ¾Ð´Ð¾Ð².ÐÐ»Ð¾Ðº ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸Ð¸ ÑÑÑÐµÐºÑÐ° ÐÐ¾Ð¿Ð»ÐµÑÐ° Ð¼Ð¾Ð¶ÐµÑ Ð±ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½ Ð¿ÑÐ¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð²Ð½ÑÑ ÑÐ¸ÑÑÐµÐ¼ Ð³Ð¸Ð´ÑÐ¾Ð°ÐºÑÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ²ÑÐ·Ð¸. ÐÐ¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð¼Ð¾Ð¶ÐµÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑÑÑ Ð´Ð»Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ðº ÑÐ¸ÑÑÐµÐ¼Ð°Ð¼ Ð°Ð²ÑÐ¾Ð¿Ð¾Ð´ÑÑÑÐ¾Ð¹ÐºÐ¸ ÑÑÑÑÐ¾Ð¹ÑÑÐ² Ð·Ð²ÑÐºÐ¾Ð¿Ð¾Ð´Ð²Ð¾Ð´Ð½Ð¾Ð¹ ÑÐ²ÑÐ·Ð¸.
description: The subject of the graduate qualification work is underwater acoustic channel for mobile units communication.The work is aimed at ensuring efficiency of the underwater acoustic OFDM modem for mobile units by means of the Doppler effect correction module.The Doppler effect correction methods were analysed in the course of the study. A new simulation system was introduced for the methods verification. The system determines Doppler coefficient estimation parameters for the given error-rate performance.The main results of the work are the Doppler effect correction software module and the simulation system of underwater communication. The chirp-z transform algorithm provides less computation complexity.The Doppler effect correction software module can be used as a part of the subsequent underwater communication systems based on OFDM signals. The simulation system will facilitate new underwater acoustic OFDM system development, namely determination of the Doppler coefficient estimation parameters.