Lecture 2. Design of airborne digital computers
o.krasnousova
Created on March 23, 2021
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Transcript
DESIGN OF AIRBORNE DIGITAL COMPUTERS
Lecture 2
5. Kotelnikov's theorem
4. Signal recovery methods (extrapolation and interpolation)
3. Sampling and quantization
2. Classification of signals
1. ABDC's architecture, the main units
Plan
RAM
ROM
Architecture of airborne digital computers
Discrete time - discrete value
Continuous time - discrete value
Continuous value - discrete time
Sampling - the process of converting an analog signal to discrete one.
The signals can be:
- analog
- discrete
- digital
Analog and discrete signals using the example of current in the microphone circuit
Sampling
The process of measuring the instantaneous values of continuous-time signal in a discrete form.
Quantization
Each sample voltage is rounded off (Quantized) to the closest available level and then converted to its correspondence code.
Least square method (LS)
Difference between Interpolation and Extrapolation
Signal recovery methods (extrapolation and interpolation)
What is Interpolation and Extrapolation ?
The chose of sampling interval
Kotelnikov´s theorem
Aliasing and Nyquist
Kotelnikov´s theorem
Thanks!