|
The unit is one of a range of digital communication trainers and provides all necessary inputs and connections for students to study Delta, Adaptive Delta and Delta Sigma Modulation Demodulation.
In signal communication operating at low frequencies or speech communication a saving in bandwidth can be resulted using Delta Modulation and its associated techniques because this requires single encoding of sample. This trainer cover Delta, Adaptive Delta and Delta Sigma Modulation and Demodulation.
Features:
- Functional blocks indicated via on board mimics
- Test points
- Fully documented student workbook
- Both transmitter and receiver on same board
- Clock generation from crystal
- 4 switch selectable sampling rates
- 4 on-board generators at 4 different frequencies (synchronised)
- Separate adjustable DC level
- Selectable integrators gain setting (by switch or control circuit
- On-board 4th order Buttonworth low pass filter
- Unipolar to bipolar conversion on-board
Experiments:
- Study of delta modulation and demodulation
- Study of effect of slope overload and increased integrator gain in delta modulation
- Study of adaptive delta modulation and demodulation
- Study of delta sigma modulation and demodulation
- Study of amplitude overload in delta sigma modulation
|
