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Full Description
This hands-on, laboratory driven textbook helps readers understand principles of digital signal processing (DSP) and basics of software-based digital communication, particularly software-defined networks (SDN) and software-defined radio (SDR). In the book only the most important concepts are presented. Each book chapter is an introduction to computer laboratory and is accompanied by complete laboratory exercises and ready-to-go Matlab programs with figures and comments (available at the book webpage and running also in GNU Octave 5.2 with free software packages), showing all or most details of relevant algorithms. Students are tasked to understand programs, modify them, and apply presented concepts to recorded real RF signal or simulated received signals, with modelled transmission condition and hardware imperfections. Teaching is done by showing examples and their modifications to different real-world telecommunication-like applications. The book consists of three parts: introduction to DSP (spectral analysis and digital filtering), introduction to DSP advanced topics (multi-rate, adaptive, model-based and multimedia - speech, audio, video - signal analysis and processing) and introduction to software-defined modern telecommunication systems (SDR technology, analog and digital modulations, single- and multi-carrier systems, channel estimation and correction as well as synchronization issues).
Many real signals are processed in the book, in the first part - mainly speech and audio, while in the second part - mainly RF recordings taken from RTL-SDR USB stick and ADALM-PLUTO module, for example captured IQ data of VOR avionics signal, classical FM radio with RDS, digital DAB/DAB+ radio and 4G-LTE digital telephony. Additionally, modelling and simulation of some transmission scenarios are tested in software in the book, in particular TETRA, ADSL and 5G signals.
Provides an introduction to digital signal processing and software-based digital communication;
Presents a transition from digital signal processing to software-defined telecommunication;
Features a suite of pedagogical materials including a laboratory test-bed and computer exercises/experiments.
Contents
Introduction.- PART I. DSP BASICS.- Signals.- Orthogonal transforms.- DFT and DtFT Fourier transforms and signal spectra.- Fast Fourier transform algorithms for DFT.- FFT-based signal spectra of DtFT, PSD, STFT.- Modern spectral analysis using linear prediction and signal subspaces.- Analog filters.- Digital filters.- Digital IIR filters.- Digital FIR filters.- Fast FIR filters.- FIR filtering in signal up- and down-sampling.- FIR NLMS and RLS adaptive filters.- PART II. DSP IN MULTIMEDIA.- Speech coding.- Audio coding.- Image processing and coding.- PART III. DSP IN TRANSMISSION.- FIR Hilbert filter and analytic signals.- FM modulation and demodulation, IQ components.- AM modulation and demodulation.- Digital DBPSK (de)modulation.- Software stereo FM+RDS radio transmitter and receiver.- Software RDS BIT decoder with down-sampling and Costas loop.- Software RDS TEXT decoder.- Software DAB radio receiver.- Software DAB radio receiver.- Software DAB radio receiver.- Software DAB radio receiver.- Software ADSL receiver.- Conclusion.
