Digital Waveform Generation by Dr Pete Symons

By Dr Pete Symons

This concise review of electronic sign new release will introduce you to robust, versatile and useful electronic waveform new release strategies. those recommendations, in accordance with phase-accumulation and phase-amplitude mapping, will assist you generate sinusoidal and arbitrary real-time electronic waveforms to suit your wanted waveshape, frequency, section offset and amplitude, and to layout bespoke electronic waveform new release platforms from scratch. together with a assessment of key definitions, a quick explanatory creation to classical analogue waveform iteration and its simple conceptual and mathematical foundations, assurance of recursion, DDS, IDFT and dynamic waveshape and spectrum keep watch over, a bankruptcy devoted to particular examples of layout, and followed through downloadable Mathcad types created that will help you discover 'what if?' layout eventualities, this is often crucial examining for practitioners within the electronic sign processing neighborhood, and for college students who are looking to comprehend and practice electronic waveform synthesis ideas.

Show description

Read or Download Digital Waveform Generation PDF

Best signal processing books

RF and Digital Signal Processing for Software-Defined Radio: A Multi-Standard Multi-Mode Approach

Comprehend the RF and electronic sign Processing rules riding Software-defined Radios! Software-defined radio (SDR) know-how is a configurable, cost effective, and tool effective answer for multimode and multistandard instant designs. This ebook describes software-defined radio ideas and layout ideas from the point of view of RF and electronic sign processing as played inside of the program.

Principles of Semiconductor Network Testing (Test & Measurement)

Rules of Semiconductor community trying out gathers jointly accomplished info which try out and strategy execs will locate important. The innovations defined can help make sure that try equipment and information amassed replicate genuine equipment functionality, instead of 'testing the tester' or being misplaced within the noise flooring.

Bayesian Signal Processing: Classical, Modern, and Particle Filtering Methods (Adaptive and Cognitive Dynamic Systems: Signal Processing, Learning, Communications and Control)

Offers the Bayesian method of statistical sign processing for a number of worthy version units  This ebook goals to provide readers a unified Bayesian therapy ranging from the fundamentals (Baye’s rule) to the extra complex (Monte Carlo sampling), evolving to the next-generation model-based strategies (sequential Monte Carlo sampling).

Additional info for Digital Waveform Generation

Example text

The oversampling DAC principle is strictly a DAC processing strategy and can be applied to any fixed sample rate system. 11 Conceptual auto-calibration methodology in the time-interleaved DAC AWG. frequency. The phase accumulator generates a discrete-time phase function whose slope (controlled by the phase increment parameter) determines the output waveform frequency. The phase function is converted to a desired waveform by a phase–amplitude mapping process usually based upon a table-lookup operation, possibly augmented by interpolation.

Increasing the number of terms in the series improves the approximation. In the digital domain we can simplify the phase–amplitude mapping operation by tabulating the g(x) waveform function over a range of phase values as a lookup table or so-called wavetable of ‘phase–amplitude’ data points, with the table address representing normalised phase over (usually) one cycle. The wavetable concept is a cornerstone technique for efficiently implementing the phase–amplitude mapping operation in DDS arbitrary waveform generation.

Therefore, the VFC can only generate pulse waveforms and requires further waveshaping if other waveforms are required. However, chargebalancing VFCs provide an extremely linear transfer function between control voltage and frequency. 3 when we investigate purely analogue waveform generation techniques. In general, all analogue waveform generation methods exhibit drift in output frequency, control linearity and waveshape with temperature, supply voltage variation and component ageing. Drift is a fundamental property of all analogue circuits and is an error mechanism that can only be minimised through careful design, component selection and regular calibration.

Download PDF sample

Rated 4.25 of 5 – based on 31 votes