6 Questions
Which of the following processes is NOT typically associated with analog signal processing?
Quantization
What is one main function of the receiver in analog signal processing?
To extract the useful signal $s(t)$ from the received signal $r(t)$
Which component of an electronic circuit is NOT typically used in analog signal processing?
Microcontrollers
An analog low pass filter (LPF) is used to:
Reduce the effect of high-frequency noise
Which of the following is a limitation of analog signal processing?
Undesired nonlinearities
How are the functions in analog processing typically implemented?
Using passive or active electronic circuitry
Study Notes
Analog Processing
- Analog processing involves differentiation, integration, filtering, and amplification
- Implemented using passive or active electronic circuitry consisting of resistors, capacitors, and inductors
- Analog processing is used to extract useful signals from received signals
Received Signal and Noise
- Received signal r(t) consists of useful signal s(t) and unwanted noise n(t): r(t) = s(t) + n(t)
- Main function at the receiver is to extract useful signal s(t) or obtain its estimate from received signal r(t)
Analog Low Pass Filter (LPF)
- Analog LPF is used to reduce high-frequency noise and extract useful signal component
- LPF processing generates an estimate of useful signal ŝ(t) from received signal r(t)
Limitations of Analog Signal Processing
Accuracy Limitations
- Component tolerances affect accuracy
- Undesired nonlinearities affect accuracy
Limited Repeatability
- Tolerances affect repeatability
- Environmental changes (temperature, vibration) affect repeatability
This quiz covers the basics of analog processing, including differentiation, integration, filtering, and amplification, as well as differential equations and their implementation using electronic circuits. It also touches on the concept of signal processing and noise reduction.
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