Расчет внешней диаграммы измерительных уровней канала передачи. Увеличение уровня передачи групповых и линейных усилителей, страница 4

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

Задание 3

1.Выберите частоту дискретизации первичного сигнала, спектр которого ограничен частотами . Для выбранной частоты дискретизации рассчитайте и постройте спектральную диаграмму АИМ сигнала. Пользуясь ею, докажите, что искажения при демодуляции сигнала могут быть сделаны сколь угодно малыми.