(Complete Item Description)
- Abstract:
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Baseband communication is the simplest form of analog communication.
- Subject:
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Science and Technology
- Grade Level:
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Post-secondary
- Collection:
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Connexions
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Channel coding's error correction capability compensates for the increased error probability due to the necessitated reduced bit energy if the signal-to-noise ration is large enough.
- Subject:
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Science and Technology
- Grade Level:
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Post-secondary
- Collection:
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Connexions
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(Complete Item Description)
- Abstract:
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Shannon derived the maximum datarate of a source coder's output that can be transmitted through a bandlimited additive white noise channel with no error.
- Subject:
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Science and Technology
- Grade Level:
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Post-secondary
- Collection:
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Connexions
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Both wireline and wireless channels share characteristics, allowing us to use a common model for how the channel affects transmitted signals.
- Subject:
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Science and Technology
- Grade Level:
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Post-secondary
- Collection:
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Connexions
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(Complete Item Description)
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Several properties of digital communication systems make them preferable to analog systems.
- Subject:
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Science and Technology
- Grade Level:
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Post-secondary
- Collection:
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Connexions
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(Complete Item Description)
- Abstract:
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Several properties of digital communication systems make them preferable to analog systems.
- Subject:
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Science and Technology
- Grade Level:
-
Post-secondary
- Collection:
-
Connexions
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(Complete Item Description)
- Abstract:
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So-called linear codes create error-correction bits by combining the data bits linearly. Topics discussed include generator matrices and the Hamming distance.
- Subject:
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Science and Technology
- Grade Level:
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Post-secondary
- Collection:
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Connexions
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(Complete Item Description)
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Analog-to-digital converters introduce quantization noise due to their finite wordlength. The signal-to-noise ratio (SNR) increases by 6 dB per bit.
- Subject:
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Science and Technology
- Grade Level:
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Post-secondary
- Collection:
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Connexions
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(Complete Item Description)
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In this module, we will use the 56002 to measure noise introduced by quantization and compare the performance of linear and logarithmic quantization. First, we will write a program to perform N-bit (N less than or equal to 16) linear quantization and logarithmic (mu-law) quantization. Then will use that program to compare the techniques for simple signals and audio signals.
- Subject:
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Science and Technology
- Grade Level:
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Post-secondary
- Collection:
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Connexions
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A description of matched filters, which is a demodulation technique with LTI filters which achieves maximum SNR.
- Subject:
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Science and Technology
- Grade Level:
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Post-secondary
- Collection:
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Connexions
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(Complete Item Description)
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Increasing the bandwidth of an amplitude modulated signal increases the signal-to-noise-ratio.
- Subject:
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Science and Technology
- Grade Level:
-
Post-secondary
- Collection:
-
Connexions
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