title: ÐÐ°Ð±Ð¾ÑÐ°ÑÐ¾ÑÐ½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ 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° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Laboratory work on modeling formation and signal processing with OFDM
Creators: name: ÐÑÑÐ´Ð¸ÑÑ, ÐÐ»ÐµÐºÑÐµÐ¹
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: 2020
Subjects: ÐÐ½Ð¾Ð³Ð¾Ð»ÑÑÐµÐ²Ð¾ÑÑÑ
OFDM
ZF
MMSE
Ð¿Ð¸Ð»Ð¾ÑÐ½ÑÐµ ÑÐ¸Ð³Ð½Ð°Ð»Ñ
Ð¸Ð½ÑÐµÑÐ¿Ð¾Ð»ÑÑÐ¸Ñ
ÑÐ¸ÐºÐ»Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¿ÑÐµÑÐ¸ÐºÑ
Multipath
pilot signals
interpolation
cyclic prefix

description: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¼Ð¾Ð´ÐµÐ»Ñ Ð² ÑÑÐµÐ´Ðµ MATLAB Ð´Ð»Ñ ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸, Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑÑÐµÐ¹ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ OFDM. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½ Ð ÑÐ»ÐµÐµÐ²ÑÐºÐ¸Ð¹ ÐºÐ°-Ð½Ð°Ð» Ñ Ð·Ð°Ð¼Ð¸ÑÐ°Ð½Ð¸ÑÐ¼Ð¸. ÐÐ¿Ð¸ÑÐ°Ð½Ñ Ð½ÐµÐ³Ð°ÑÐ¸Ð²Ð½ÑÐµ ÑÑÑÐµÐºÑÑ, Ð²Ð¾Ð·Ð½Ð¸ÐºÐ°ÑÑÐ¸Ðµ Ð¿ÑÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÐµ ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ñ OFDM ÑÐµÑÐµÐ· ÑÐ°ÐºÐ¾Ð¹ ÐºÐ°Ð½Ð°Ð», Ð¼ÐµÑÐ¾Ð´Ñ Ð±Ð¾ÑÑÐ±Ñ Ñ Ð½Ð¸Ð¼Ð¸. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð´Ð²Ð° Ð²Ð¸Ð´Ð° ÑÐºÐ²Ð°Ð»Ð°Ð¹Ð·ÐµÑÐ° (ZF Ð¸ MMSE), Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÑ ÐºÐ°ÑÐµÑÑÐ²Ð° ÑÐºÐ²Ð°Ð»Ð°Ð¹Ð·Ð¸Ð½Ð³Ð° Ð¾Ñ ÑÐ¸ÑÐ»Ð° Ð¿Ð¸Ð»Ð¾ÑÐ½ÑÑ Ð¿Ð¾Ð´Ð½ÐµÑÑÑÐ¸Ñ Ð¸ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÑÐ¸Ð³Ð½Ð°Ð»Ð°. ÐÐ»Ñ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð½Ð° Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¿Ð¾Ð´Ð½ÐµÑÑÑÐ¸Ñ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÐ°Ð·Ð½ÑÐµ ÑÐ¿Ð¾ÑÐ¾Ð±Ñ Ð¸Ð½ÑÐµÑÐ¿Ð¾Ð»ÑÑÐ¸Ð¸. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ ÐºÑÐ¸Ð²ÑÑ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð´Ð»Ñ ÑÐ°Ð·Ð½ÑÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÑÐ¸Ð³Ð½Ð°Ð»Ð° Ñ OFDM Ð² ÑÐ°Ð·Ð½ÑÑ Ð¼Ð¾Ð´ÐµÐ»ÑÑ ÐºÐ°Ð½Ð°Ð»Ð°. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ñ ÐºÐ¾Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð¿Ð¾ÑÐ»ÐµÐ´Ð¾Ð²Ð°ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ ÑÐ°Ð·Ð½ÑÐ¼Ð¸ ÐºÐ¾Ð´Ð°Ð¼Ð¸ (ÑÐ²ÑÑÑÐ¾ÑÐ½ÑÐ¹ Ð¸ LDPC) Ð¸ Ð¿ÐµÑÐµÐ¼ÐµÐ¶ÐµÐ½Ð¸ÐµÐ¼.
ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½ Ð¿Ð»Ð°Ð½ Ð»Ð°Ð±Ð¾ÑÐ°ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ¾Ð±Ð¾ÑÑ. ÐÐ°Ð¶Ð´ÑÐ¹ Ð¿ÑÐ½ÐºÑ ÑÐ½Ð°Ð±Ð¶ÑÐ½ Ð¿Ð¾Ð´ÑÐ¾Ð±Ð½ÑÐ¼Ð¸ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ð¼Ð¸ Ð¿Ð¾ÑÑÐ½ÐµÐ½Ð¸ÑÐ¼Ð¸. ÐÐ¼ÐµÑÑÑÑ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ Ð½Ð°Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð² MATLAB. ÐÐ¿Ð¸ÑÐ°Ð½Ñ ÑÑÐ½ÐºÑÐ¸Ð¸, ÐºÐ¾ÑÐ¾ÑÑÐµ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ñ Ð¿ÑÐ¸ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ Ð¼Ð¾Ð´ÐµÐ»Ð¸. ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð° Ð¾Ð±ÑÐ°Ñ ÑÑÑÑÐºÑÑÑÐ° Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ñ.
description: A model was developed in MATLAB for a digital information transmission system using OFDM technology. The Rayleigh channel with fading was considered. The negative effects that occur during the transmission of a signal with OFDM through such a channel, and methods of dealing with them are described. Two types of equalizer (ZF and MMSE) and the dependence of the quality of equalization on the number of pilot subcarriers and signal parameters are considered. To evaluate the transfer characteristic on of channel on the information subcarriers, various interpolation methods are considered. Based on the developed model, noise immunity curves are compared for different signal parameters with OFDM in different channel models. Simulation was performed with the coding of the information sequence by different codes (convolutional and LDPC) and interleaving.
A laboratory work plan is presented. Each item has a detailed theoretical back-ground. There are a lot of recommendations for writing a model in MATLAB. Many functions that are needed during programming the model are described. Instructions are given on the overall structure of the program. Together with theoretical material, this will allow you to quickly complete and gain in-depth knowledge.