title: Ð¡Ð½Ð¸Ð¶ÐµÐ½Ð¸Ðµ Ð¸ÑÐºÐ°Ð¶ÐµÐ½Ð¸Ð¹ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð² ÑÐ°Ð´Ð¸Ð¾Ð¿ÐµÑÐµÐ´Ð°ÑÑÐ¸Ñ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð°Ñ Ð¿ÑÐ¸ ÑÐ°ÑÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐµÐ»ÐµÐ³ÑÐ°ÑÐ¸Ð¸
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: Reducing signal distortion in radio transmitting device in frequency shift keying mode
Creators: name: ÐÐ»ÑÑÐ¸Ñ, Ð¡Ð¾ÑÑÑ
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: Ð Ð°Ð´Ð¸Ð¾ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð°
Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ¸Ð³Ð½Ð°Ð»Ñ
Ð¢ÐµÐ»ÐµÐ³ÑÐ°ÑÐ¸Ñ
Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½Ð¾Ð¹ Ð¿ÑÐ¾ÑÐµÑÑ
ÐºÐ»ÑÑÐµÐ²Ð¾Ð¹ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸
ÑÐ°Ð·Ð¾Ð²Ð°Ñ ÑÑÐ°ÐµÐºÑÐ¾ÑÐ¸Ñ
ÑÐ°Ð·Ð¾Ð²Ð¾Ðµ Ð¿ÑÐ¾ÑÑÑÐ°Ð½ÑÑÐ²Ð¾
transient process
switch-power amplifier
phase-plane path
phase-space

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description: The object of research is a radio transmitting device. The subject of the study covers methods for reducing overloads of radio transmitter (RT) power amplifier (PA) in transient modes under the conditions of frequency shift keying (FSK). The purpose of the research is to improve the quality of transient processes in the final stage of the radio transmitter during FSK. The terminological features of the subject area are considered, and software tools are used to solve problems. Specialized mathematical software Matlab, Micro-Cap, MathCad were used. This research aims to decrease RT signal distortions under FSK by minimizing the PA output current overload factor by changing the PA voltage control operation principle. Two methods of PA control operation principles were analyzed and implemented: first based on phase-plane path method (PPPM) and quasi-optimal control of RT amplifiers during transient process. As a result, in the case of controlling the PA based on the phase trajectory method PA output current overload factor was reduced as much as 3.3 times, with quasi-optimal control of the PA as much as 2.8 times. In comparison with the PA control algorithm based on the PPPM, the quasi-optimal method found inferior. The PA output current overload factor found increased in range from 1.05 to 1.41 times, the energy inefficiency ranged from 3% to 21%.