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E7F - Practical Circuits

Extra Class

DSP: sampling, A/D conversion, digital filters, FFT

14 questions

All E0A E1A E1B E1C E1D E1E E1F E2A E2B E2C E2D E2E E3A E3B E3C E4A E4B E4C E4D E4E E5A E5B E5C E5D E6A E6B E6C E6D E6E E6F E7A E7B E7C E7D E7E E7F E7G E7H E8A E8B E8C E8D E9A E9B E9C E9D E9E E9F E9G E9H
E7F01

What is meant by “direct sampling” in software defined radios?
E7F02

What kind of digital signal processing audio filter is used to remove unwanted noise from a received SSB signal?
E7F03

What type of digital signal processing filter is used to generate an SSB signal?
E7F04

Which method generates an SSB signal using digital signal processing?
E7F05

How frequently must an analog signal be sampled to be accurately reproduced?
E7F06

What is the minimum number of bits required to sample a signal with a range of 1 volt at a resolution of 1 millivolt?
E7F07

What function is performed by a Fast Fourier Transform?
E7F08

What is the function of decimation?
E7F09

Why is an anti-aliasing filter required in a decimator?
E7F10

What aspect of receiver analog-to-digital conversion determines the maximum receive bandwidth of a direct-sampling software defined radio (SDR)?
E7F11

What sets the minimum detectable signal level for a direct-sampling software defined receiver in the absence of atmospheric or thermal noise?
E7F12

Which of the following is generally true of Finite Impulse Response (FIR) filters?
E7F13

What is the function of taps in a digital signal processing filter?
E7F14

Which of the following would allow a digital signal processing filter to create a sharper filter response?