Signal processing for beginners (based on the book- R.Lyons)
Логическое представление лекции 1. |
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Anal.represet. |
Aims and Problems |
D(t) |
Extraction |
Информация? |
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детерминир. |
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of S(t) |
SignalDigitProcsngs |
Вероятность? |
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information |
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Дискр. Сигнал и |
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Представл |
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ение ДС |
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его представление |
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Шкала dB и mwt. |
Модуль и |
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Их отличия. |
мощность |
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Графическое |
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Линейные и |
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представление операций |
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нелинейные |
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(их 5!) над s(t) |
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операции над S(t) |
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Комплексное |
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представление S(t) |
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2 |
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Логическое представление лекции 1. |
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Allasing or Неопр. |
Обобщение |
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f(t+T)=f(t)? |
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при ЧД (НПЧД) |
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Методы |
Ф-ла (2.10) и её |
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R=[(fc)+B/2]/B |
представление |
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подавления НПЧД |
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На рис. 2.8 и 2.10 |
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Графическое |
Ф-лы (2.10) - (2.12) |
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Представл. |
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основных |
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формул |
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Графическое |
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Представление |
Оптимальная частота |
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формул |
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Таблица 2-2. |
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Основные ф-лы. |
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3 |
3 |
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To stem –корениться, происходить |
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Patch cord –коммутационный шнур, кабель |
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1. |
What signal can be defined as analog signal. Give the examples of analog signals. |
Obsolete – устарелый, старомодный |
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Misnomer- искажение определения |
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How one can understand the DSP? (Digital signal processing)? Formulate a definition. |
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Another notation of the discrete sequence.
Comment-Not only deterministic signal! Any response/sequence of numbers y(n) can be considered as a “signal” random sequence obtained in the result of measurements!
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Simple presentation of the AF response.
We have now
presentation of a
signal
In time domain and in the AFR domain. In what cases the second presentation is important?
I want to know your opinion?
How to write this equation in other notations?
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What is the magnitude of some signal, variable?
What is the power level of some signal?
In what cases the
decibel scale is
convenient to use?
What is the difference between amplitude and magnitude?
Gain- извлекать
пользу, выгоду.
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How with the help of these signals to write the following expressions:
How to write the division operation with
the help of these
symbols?
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Another notation!
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