Practical Digital Signal Processing for Engineers and Technicians
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The document covers practical digital signal processing (DSP) for engineers and technicians, explaining the distinction between discrete and continuous signals, and the advantages of processing signals digitally. It highlights key concepts such as filters, frequency, and spectrum, and discusses various application areas including audio processing, image processing, adaptive filtering, and digital communication. The document also introduces the software radio architecture and invites readers to seek further training information.
Practical Digital Signal Processing for Engineers and Technicians
- 1. Practical Digital Signal Processing for Engineers and Technicians Technology www.idc-online.com/slideshare Training that Works
- 2. DSP • Digital - finite set of distinct values. • Analog - continuous range of values. • DSP Processing means processing of signals which are: - Discrete in time. - Discrete in amplitude. Technology www.idc-online.com/slideshare Training that Works
- 3. Two sources of discrete signals • Ones that are discrete in nature. • Sampled version of a continuous-time signal. Technology www.idc-online.com/slideshare Training that Works
- 4. Why Process Signals Digitally? • The signals are inherently discrete in nature. • Consistency - compared with analog methods. Technology www.idc-online.com/slideshare Training that Works
- 5. Definition of Terms • Signals - A quantity that can be measured over time. • Frequency - A signal is said to have a frequency of 50 or 60 Hz. • Spectrum - Some signals have a combination of frequencies. • Low Pass Filter - This lets through the low pass component. • Bandpass Filter - Only a range of frequencies is passed through intact. • High-pass Filter - Allows frequencies above a certain frequency to pass through intact. Technology www.idc-online.com/slideshare Training that Works
- 6. Some Application Areas • Speech and Audio Processing. - Coding. - Synthesis. - Recognition. Technology www.idc-online.com/slideshare Training that Works
- 7. Companding Process Technology www.idc-online.com/slideshare Training that Works
- 8. Adaptive Differential Pulse Code Modulator Technology www.idc-online.com/slideshare Training that Works
- 9. Linear Predictive Coding Technology www.idc-online.com/slideshare Training that Works
- 10. Image and Video Processing • Image Enhancement. • Image Restoration. • Image Compression and Coding. Technology www.idc-online.com/slideshare Training that Works
- 11. Adaptive Filtering • Noise Cancellation. • Echo Cancellation. • Channel Equalisation. Technology www.idc-online.com/slideshare Training that Works
- 12. Adaptive Noise Cancellation System Technology www.idc-online.com/slideshare Training that Works
- 13. Adaptive Echo Cancellation System Technology www.idc-online.com/slideshare Training that Works
- 14. Adaptive Equalizer in Training Mode Technology www.idc-online.com/slideshare Training that Works
- 15. Control Applications • Controlling closed-loop feedback systems. • Controller implements algebraic algorithms such as filters and compensators. Technology www.idc-online.com/slideshare Training that Works
- 16. Digital Closed Loop Control System Technology www.idc-online.com/slideshare Training that Works
- 17. Sensor or Antenna Array Processing • Spatially distributed sensors are used for receiving signals from some sources. • Coherent summing of outputs from these sensors referred to as beamforming. • One can “listen” preferentially to wavefronts originating from one direction over another. Technology www.idc-online.com/slideshare Training that Works
- 18. Digital Communication • New Architecture called software radio. • Use of wideband A/D and D/A converters to convert RF or IF signals directly. Technology www.idc-online.com/slideshare Training that Works
- 19. Software Radio Architecture Technology www.idc-online.com/slideshare Training that Works
- 20. DO YOU WANT TO KNOW MORE? If you are interested in further training or information, please visit: http://idc-online.com/slideshare Technology www.idc-online.com/slideshare Training that Works