Wireless systems using FPGA circuits
Signal processing through digital circuits performed in FPGA
- DVB-T modulator
- Eco canceller for DVB-T
- Multirate filter design
- Linear Predistorter for Analogue Channel Filters
- Non-Linear Predistorter for PA
DVB-T modulator
Block diagram of the design of an OFDM modulator made entirely of FPGA
Bench Modulator Measurement Chart:
DVB-T constellations: 64-QAM and 16-QAM
DVB-T signal spectrum
Modulator test scheme with commercial receiver
Echo canceller for DVB-T repeaters
Scenario: Extension of the coverage area of the terrestrial digital signal through isofrequency repeaters
Problem: Possible presence of echoes with risk of interruption of the television service
Solution: DVB-T repeater equipped with echo canceller
Block diagram of the echo canceller
Schematic diagram for the eraser
Counter measurements of echo cancellation