Syllabus

The need for Software radios and its definition, Characteristics and benefits of Software radio, Design principles of a software radio. Radio Frequency Implementation Issues: Purpose of RF front–end, Dynamic range, RF receiver front –end topologies, Enhanced flexibility of the RF chain with software radios, Importance of the components to overall performance, Transmitter architectures and their issues, Noise and distortion in the RF chain, ADC & DAC distortion, Pre-distortion, Flexible RF systems using micro-electro mechanical systems.

Multirate signal processing in SDR –Sample rate conversion principles, Polyphase filters, Digital filter banks, Timing recovery in digital receivers using multi rate digital filters.

Digital generation of signals - Introduction, Comparison of direct digital synthesis with analog signal synthesis, Approaches to direct digital synthesis, Analysis of spurious signals, Spurious components due to periodic jitter, Band pass signal generation, Performance of direct digital synthesis systems, Hybrid DDS – PLL Systems, Applications of direct digital synthesis, Generation of random sequences, ROM compression techniques.

Smart antennas -Introduction, Vector channel modeling, Benefits of smart antennas, Structures for beam forming systems, Smart antenna algorithms, Diversity and Space time adaptive signal processing, Algorithms for transmit STAP, Hardware implementation of smart antennas, Array calibration, Digital Hardware Choices- Key hardware elements, DSP processors, FPGAs, Power management issues.

Object oriented representation of radios and network-networks, Object–Oriented-Programming, Object brokers, Mobile application environments, Joint Tactical radio system.

Case studies in software radio design-, JTRS, Wireless Information transfer