Sumários

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11 Maio 2023, 09:30 Rita Sousa


Demonstration of ideal lowpass filtering (with different bandwidths) of white noise using Matlab simulation. Estimation of power spectral density of stationary white noise using Matlab simulation.

Signal transmission with noise: baseband signal transmission with noise and additive noise and signal-to-noise ratios. Analog transmission: model of received signal with noise, total output power, signal-to-noise ratio, additive white gaussian noise, structure of the receiver of analog signal transmission, required signal-to-noise ratio at destination.

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10 Maio 2023, 11:00 Rita Sousa


Solving Problem 4.35. Noise temperature and noise equivalent bandwidth. Illustration of the noise equivalent bandwidth concept for lowpass filter and bandpass filter. Solving Problem 4.38.

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10 Maio 2023, 09:30 Rita Sousa


Solving Problem 4.35. Noise temperature and noise equivalent bandwidth. Illustration of the noise equivalent bandwidth concept for lowpass filter and bandpass filter. Solving Problem 4.38.

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8 Maio 2023, 09:30 Rita Sousa


Noise characterisation. Thermal Noise: description, spectra density, thermal noise as white noise, and available spectral density. Power spectrum and autocorrelation of white noise. Noise temperature. Filtered noise and illustration of filtered noise. Solving Problem 4.33.

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4 Maio 2023, 11:00 Rita Sousa


Solving Problem 4.20. Filtered random signals. Output power spectrum and mean of filtered random signals. Solving Problems 4.24 and 4.25.