ELT-44008 Radio Architectures and Signal Processing, 5 cr
Advanced course, mainly intended for doctoral studies but can certainly be studied also in the MSc phase. The course is lectured every second year, next time during fall 2020.
Course www-page: http://www.cs.tut.fi/kurssit/ELT-44007
Suitable for postgraduate studies. Ei toteuteta lukuvuonna 2019-2020.
Mikko Valkama, Markku Renfors
This course gives an overview of modern radio receiver and radio transmitter architectures and critical issues in analog and digital processing in the receiver/transmitter front-ends, used in all wireless communications devices. Strong emphasis is on flexible radio type of techniques, where the idea is to increase the role of DSP in the transceiver front-end processing to achieve flexible solutions, e.g., for multi-standard systems. After completing the course, students have good understanding of the key RF-functionalities and related performance issues when designing the analog and digital signal processing blocks for digital communications receivers and transmitters. She/he can also explain the possibilities and challenges of increased use of digital signal processing algorithms for implementing or enhancing the RF functionalities.
|1.||RECEIVER ARCHITECTURES: - Basic architectures of communications receivers: superheterodyne, direct-conversion, low-IF; - Effects of non-idealities in practical analog implementations: I/Q imbalance, nonlinearities, noise, phase noise, spurious responses; - System calculation principles; - The significance of RF specifications of mobile communication systems on the specs of the signal processing blocks; - Flexible multistandard receiver structures and flexible spectrum use, software defined radio and cognitive radio concepts.|
|2.||TRANSMITTERS: - Basic transmitter structures; - Co-existence of transmitters and receivers, impact of duplexing methods; - Effects of power amplifier nonlinearities and linearization principles.|
|3.||FREQUENCY SYNTHESIS: - The principles and analysis of key performance characteristics of main frequency synthesis methods; - Direct digital synthesis.|
|4.||MULTIRATE DSP: - Principles of multirate signal processing and extensions to bandpass and complex (I/Q) cases; - Review of efficient realization structures: polyphase structure, CIC filters; - Continuous-time, discrete-time, and multirate signal processing in case of complex (I/Q) and bandpass signals; - Sampling of bandpass signals and I/Q signals, sampling and ADC requirements regarding resolution and sampling jitter; - Delta-sigma A/D-conversion principle; - Efficient DSP algorithms for communications receivers.|
|5.||SYNCHRONIZATION: - Requirements and methods for carrier and symbol synchronization; - Maximum Likelihood estimation theory in synchronization; - All-digital synchronization principles; - Principle of polynomial interpolation and its applications in communications signal processing.||- Efficient all-digital synchronization algorithms; - Cramer-Rao bound on the performance of synchronization algorithms; - Realizations structures and design methods for polynomial interpolation.|
|6.||DSP ENHANCED RADIO: - Use of statistical DSP for compensation of certain non-idealities of the analog parts (I/Q imbalance, nonlinearities, phase noise); - Power amplifier modeling, linarization methods, digital predistortion.||- More extensive analysis of the used statistical DSP methods and detailed signal models.|
|7.||SOFTWARE DEFINED RADIO PLATFORMS - Introduction to LabVIEW/USRP environment;||- More extensive project with LabVIEW/USRP for additional credits.|
Ohjeita opiskelijalle osaamisen tasojen saavuttamiseksi
The assessment is based on the exam, which is targeted to measuring the knowledge gained in the core contents. Also the quality of the project works and homework returns have an impact on grading.
Numerical evaluation scale (0-5)
|ELT-41308 Communication Theory||Mandatory|
|ELT-43008 Digital Communication||Advisable|
|ELT-43106 Multicarrier and Multiantenna Techniques||Advisable|
If you have passed earlier versions of the pre-requisite courses (ELT-41307, ELT-43007), they are certainly ok as well.
|ELT-44008 Radio Architectures and Signal Processing, 5 cr||ELT-44007 Radio Architectures and Signal Processing, 6 cr|