title: ÐÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ LDM Ð² ÑÑÐ°Ð½Ð´Ð°ÑÑÐµ ÑÐ¿ÑÑÐ½Ð¸ÐºÐ¾Ð²Ð¾Ð³Ð¾ ÑÐµÐ»ÐµÐ²Ð¸Ð·Ð¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð²ÐµÑÐ°Ð½Ð¸Ñ DVB-S2(X) Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð³Ð¾ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸
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: Applying LDM in DVB-S2(X) satellite video-broadcasting under conditions of linear power amplifier
Creators: name: ÐÐ°ÑÐ¾Ð², Ð®ÑÐ¸Ð¹
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: DVB-S2(X)
LDM
ÑÑÐµÐ½Ð°ÑÐ¸Ð¸ Ð´Ð»Ñ Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÐµÐ»ÐµÐ¹
ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ Ð¸Ð½Ð¶ÐµÐºÑÐ¸Ð¸
usecase for users
Injection level

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ LDM Ð² ÑÑÐ°Ð½Ð´Ð°ÑÑÐµ ÑÐ¿ÑÑÐ½Ð¸ÐºÐ¾Ð²Ð¾Ð³Ð¾ ÑÐµÐ»ÐµÐ²Ð¸Ð·Ð¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð²ÐµÑÐ°Ð½Ð¸Ñ DVB-S2(X) Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð³Ð¾ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸Â». Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÑÑÑ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÑ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð² ÑÑÐ°Ð½Ð´Ð°ÑÑÐµ DVB-S2(X) Ð¿ÑÑÑÐ¼ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ LDM (Layered Division Multiplexing). ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ñ Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ ÐºÐ°Ð½Ð°Ð»Ð° Ñ ÐÐÐÐ¨ Ð¸ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¸Ð´ÐµÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸. ÐÐ»Ñ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ LDM, Ð² ÐºÐ¾ÑÐ¾ÑÐ¾Ð¹ ÐºÐ°Ð½Ð°Ð»Ñ ÑÐ°Ð·Ð´ÐµÐ»ÑÑÑÑÑ Ð¿Ð¾ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸, Ñ TDM (Time Division Multiplexing), Ð² ÐºÐ¾ÑÐ¾ÑÐ¾Ð¹ ÐºÐ°Ð½Ð°Ð»Ñ ÑÐ°Ð·Ð´ÐµÐ»ÑÑÑÑÑ Ð¿Ð¾ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ Ð±ÑÐ»Ð¸ ÑÐ°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ 3 ÑÑÐµÐ½Ð°ÑÐ¸Ñ. ÐÐµÑÐ²ÑÐµ Ð´Ð²Ð° ÑÑÐµÐ½Ð°ÑÐ¸Ñ Ð¿ÑÐµÐ´Ð¿Ð¾Ð»Ð°Ð³Ð°Ð»Ð¸ Ñ Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÐµÐ»ÐµÐ¹ ÑÐ°Ð·Ð»Ð¸ÑÐ¸Ñ Ð² ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ°Ñ Ð¿ÑÐ¸ÐµÐ¼Ð½ÑÑ Ð°Ð½ÑÐµÐ½Ð½, Ð° Ð² ÑÑÐµÑÑÐµÐ¼ ÑÑÐµÐ½Ð°ÑÐ¸Ð¸ Ð¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÐµÐ»Ð¸ Ð¸Ð¼ÐµÐ»Ð¸ Ð¾Ð´Ð¸Ð½Ð°ÐºÐ¾Ð²ÑÐµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ Ð°Ð½ÑÐµÐ½Ð½, Ð½Ð¾ Ð½Ð°ÑÐ¾Ð´Ð¸Ð»Ð¸ÑÑ Ð² ÑÐ°Ð·-Ð»Ð¸ÑÐ½ÑÑ Ð¿Ð¾Ð³Ð¾Ð´Ð½ÑÑ ÑÑÐ»Ð¾Ð²Ð¸ÑÑ. ÐÑÐ» Ð¾Ð¿Ð¸ÑÐ°Ð½ Ð°Ð»Ð³Ð¾ÑÐ¸ÑÐ¼ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ LDM Ñ TDM. ÐÐ»Ñ ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÑÐ¾Ð²Ð½Ñ ÑÐ¸ÑÑÐµÐ¼Ñ Ð²ÐµÑÐ°Ð½Ð¸Ñ Ð¿Ð¾ ÑÑÐ°Ð½Ð´Ð°ÑÑÑ DVB-S2(X) Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ LDM Ð±ÑÐ»Ð° ÑÐµÐ°Ð»Ð¸Ð·Ð¾Ð²Ð°Ð½Ð° Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð² MATLAB. Ð¡ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ ÐºÑÐ¸Ð²ÑÐµ Ð¿Ð¾Ð¼ÐµÑÐ¾ÑÑÑÐ¾Ð¹ÑÐ¸Ð²Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ÑÐ¼Ð° ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð², Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð´Ð»Ñ ÑÑÐµÑ ÑÑÐµÐ½Ð°ÑÐ¸ÐµÐ² Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ LDM Ð¸ Ð±ÐµÐ· Ð½ÐµÐµ. ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ LDM Ð¾Ð±ÐµÑÐ¿ÐµÑÐ¸Ð²Ð°ÐµÑ Ð²ÑÐ¸Ð³ÑÑÑ Ð² 300% Ð² ÑÐºÐ¾ÑÐ¾ÑÑÐ¸ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÐµÐ¹ TDM Ð´Ð»Ñ Ð¿ÐµÑÐ²Ð¾Ð³Ð¾ ÑÑÐµÐ½Ð°ÑÐ¸Ñ, Ð´Ð»Ñ Ð²ÑÐ¾ÑÐ¾Ð³Ð¾ â 66% Ð¸ 32% Ð´Ð»Ñ ÑÑÐµÑÑÐµÐ³Ð¾.
description: The subject of the graduate qualification work is âApplying LDM in DVB-S2(X) satellite video-broadcasting under conditions of linear power amplifierâ. The paper investigates the possibility of increasing the speed of information transfer in the DVB-S2 (X) standard by applying the technology of LDM (Layered Division Multiplexing). The studies were performed in the conditions of a channel with AWGN and a model of an ideal power amplifier. For comparison, LDM technology, in which channels are divided by power, with TDM (Time Division Multiplexing), in which channels are divided by time, 3 scenarios were considered. The first two scenarios assumed that the users had differences in the characteristics of the receiving antennas, and in the third scenario, the users had the same antenna characteristics, but were in different weather conditions. An algorithm for comparing LDM technology with TDM has been described. For the physical layer of a DVB-S2 (X) broadcast system using LDM technology, a simulation model was implemented in MATLAB. Using this model, the noise immunity curves of signal reception were obtained, and the data transmission rate was compared for three scenarios of using LDM technology and without it. It is shown that the use of LDM technology provides a 300% gain in information transfer speed compared to TDM technology for the first scenario, 66% for the second and 32% for the third.