Integrated estimation of parameters of radio transmitter power amplifier with automatic mode adjustment by two-frequency test signal
Comparative estimation of energy parameters of power amplifiers of single-band radio transmitters using automatic mode adjustment using a deterministic two-frequency test signal instead of a random single-band signal modulated by speech is investigated in the work. Relationships are found that a...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2021-04-01
|
| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2021/%E2%84%96%202%20(176)%20(%D0%9E%D0%9D%D0%92)/59-64%20%D0%A1%D0%B0%D0%BA%20%D0%9F.%20%D0%92..pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Comparative estimation of energy parameters of power
amplifiers of single-band radio transmitters using automatic mode adjustment using a deterministic two-frequency test
signal instead of a random single-band signal modulated
by speech is investigated in the work.
Relationships are found that allow judging the power
consumption of the terminal stage of the power amplifier
with automatic mode adjustment under various types of
modulation based on the results of measurements obtained
during tests. The ratios between the power consumption
of the output stage when amplifying the random speech
signal and amplifying the deterministic two-frequency
test signal are obtained both without taking into account
losses in the controlled power supply and taking into
account such losses. Method is proposed for calculation of energy gain and
efficiency factor (efficiency) when applying automatic
control of supply voltage of output cascades of shortwave
transmitters intended for modulation with speech signals.
The loss in the regulated power supply has been estimated.
The advantage of power amplifier circuits with automatic
mode adjustment is justified. |
|---|---|
| ISSN: | 1813-8225 2541-7541 |