Question:
The purpose of a matched filter in a digital communication receiver is to _______.
The purpose of a matched filter in a digital communication receiver is to _______.
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Use matched filters to reduce ISI and boost detection accuracy in noisy digital channels.
Updated On: Jun 23, 2025
- minimise Inter Symbol Interference
- match the load impedance with line impedance
- avoid cross talk among transmitted signals
- remove DC offset
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The Correct Option is A
Solution and Explanation
A matched filter is designed to maximize the signal-to-noise ratio (SNR) at the sampling instant.
Purpose:
Shape received signal to match expected waveform.
Helps in reducing Inter Symbol Interference (ISI).
Increases probability of correct symbol detection.
It is matched to the shape of transmitted pulse ⇒ gives maximum output at the sampling point.
Purpose:
Shape received signal to match expected waveform.
Helps in reducing Inter Symbol Interference (ISI).
Increases probability of correct symbol detection.
It is matched to the shape of transmitted pulse ⇒ gives maximum output at the sampling point.
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