Software Defined Radio (SDR) is a radio communication system where components traditionally implemented in hardware — mixers, filters, modulators — are implemented in software.
This flexibility lets a single device support many protocols and frequencies through software updates.
An SDR typically has an RF front-end that captures or transmits the signal and an analog-to-digital or digital-to-analog converter that bridges the analog and digital domains. The bulk of signal processing — modulation, demodulation, filtering — happens on a programmable processor or FPGA.
Because the behavior is defined by software, the same hardware can be reconfigured for GPS, Wi-Fi, cellular, or military communications.
| Aspect | Details |
|---|---|
| Branch | Electronics & Communication Engineering (ECE) |
| Topic Type | Technical Seminar / Project Report |
| Difficulty | Intermediate – Advanced |
| Best For | Final-year BTech seminars & presentations |
| Includes | Explanation, key points, FAQs & references |