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Разработка лабораторного макета «Амплитудная модуляция» на микроконтроллере STM32

выпускная квалификационная работа бакалавра

Разработка лабораторного макета «Амплитудная модуляция» на микроконтроллере STM32

Abstract

Целью было исследование и написание программного обеспечения для микроконтроллера для реализации лабораторного стенда по амплитудной модуляции, который используем для исследования временных и спектральных характеристик сигналов с амплитудной модуляцией. При выполнении работы было исследование структуры функционала лабораторного стенда, а также изучены блоки, подключенные к микроконтроллеру STM32F407VG. Далее были разработаны алгоритмы программы для управления системой и написаны программы для управления блоками лабораторной установки и основную программу для управления работой устройства. Работа с данным микроконтроллером осуществляется в среде разработки Кeil uvision 5. Для проверки работы устройства выполнено тестирование и приведены результаты исследований работы устройства. С первого и второго разъёмов устройства получаем сигнал несущей частоты и модулирующей частоты. К этим разъёмам подключаем осциллографы для получения осцилограмм этих сигналов, как показаны в данной работе. С третьего разъёма получаем модулированный сигнал. С помощью анализатора спектра получаем спектрограммы для различных режимов модуляции: амплитудная модуляция, балансная модуляция с подавленной несущей частотой и однополосная модуляция с подавленной несущей частотой и верхней боковой полосой.

The goal was to research and write software for a microcontroller for implementing a laboratory model for amplitude modulation, which we use to study the temporal and spectral characteristics of signals with amplitude modulation. During the work, we studied the structure of the functional of the laboratory model, and also studied the blocks connected to the STM32F407VG microcontroller. Further, the program algorithms for managing the system were developed and programs were written for controlling the units of the laboratory setup and the main program for controlling the operation of the device. Work with this microcontroller is carried out in the development environment Keil uvision 5. To verify the operation of the device, testing was performed and the results of studies of the operation of the device are presented. From the first and second connectors of the device we get the signal of the carrier frequency and the modulating frequency. We connect oscilloscopes to these connectors to obtain oscillograms of these signals. From the third connector we get a modulated signal. Using a spectrum analyzer, we obtain spectrograms for various modulation modes: amplitude modulation, balanced modulation with suppressed carrier frequency and single-band modulation with suppressed carrier frequency and upper sideband.

Keywords

amplitude modulation, среда разработки Keil uvision 5, лабораторный макет, balanced modulation, STM32F407VG, амплитудная модуляция, modulation, single-band modulation, микроконтроллер, microcontroller, Keil uvision 5 development environment, laboratory layout, балансная модуляция, однополосная модуляция, модуляция

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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