An arbitrary waveform generator (AWG) is a piece of electronic test equipment used to generate electrical waveforms. These waveforms can be either repetitive or single-shot (once only) in which case some kind of triggering source is required (internal or external). The resulting waveforms can be injected into a device under test and analyzed as they progress through it, confirming the proper operation of the device or pinpointing a fault in it.
Unlike function generators, AWGs can generate any arbitrarily defined waveshape as their output. The waveform is usually defined as a series of "waypoints" (specific voltage targets occurring at specific times along the waveform) and the AWG can either jump to those levels or use any of several methods to interpolate between those levels.
For example, a 50% duty cyclesquare wave is easily obtained by defining just two points: At t0, set the output voltage to 100% and at t50%, set the output voltage back to 0. Set the AWG to jump (not interpolate) between these values and the result is the desired square wave. By comparison, a triangle wave could be produced from the same data simply by setting the AWG to linearly interpolate between these two points.
Signal generators, also known variously as function generators, RF and microwave signal generators, pitch generators, arbitrary waveform generators, digital pattern generators or frequency generators, are electronic devices that generate repeating or non-repeating electronic signals (in either the analog or digital domains). They are generally used in designing, testing, troubleshooting, and repairing electronic or electroacoustic devices; though they often have artistic uses as well.
There are many different types of signal generators, with different purposes and applications (and at varying levels of expense); in general, no device is suitable for all possible applications.
Traditionally, signal generators have been embedded hardware units, but since the age of multimedia-PCs, flexible, programmable software tone generators have also been available.
Scientists are using Spectrum Instrumentation’s digitisers (M5i.3357) and Arbitrary Waveform Generators (M4x.6631) to characterise the signals and to finally design the required ASICs and Photonic Integrated Circuits (PICs).
Standard sample memory in the new generators is 8Mpoint ... They can generate ... Modulation types include AM, DSB-AM, FM, PM, FSK, ASK, PSK and PWM, and there are 196 built-in arbitrary waveforms.
RTB 2 is an an evolution of the 2017 RTB2000, keeping the touchscreen and 10bit vertical resolution, and adding an arbitrary waveform generator and 160Mpoint segmented memory. The waveform generator is ...
The outputs generate harmonic signals, noise signals (in an adjustable spectrum), and arbitrary waveforms generated according to the device setpoints or generated from data recorded on a USB memory stick (e.g.
“For demanding applications, data can be continuously streamed directly to the AWG for replay in a FIFO mode – a process that allows almost limitless waveform production.” ... The waveform generators are made in Germany.
With the team's low-coherence BOCDR, they directly applied the periodic pseudo-random modulation created by an arbitrary waveform generator to the driving current of the light source, leading to the modulation of its output frequency ...DOI ... Citation.
"So, we worked with the electronics shop to develop an FPGA-based arbitrary waveform generator, which allows us to apply thousands of pulses now ... that cannot be generated using electric fields.
At power-up, it defaults to arbitrary waveform generation, where data presented to the 14bit parallel input but is immediately clocked out (using the sync pin) onto the analogue output at up to 100MHz.
When used with Siglent’s isolated signal generator SAG1021I, or any Siglent arbitrary waveform generator, the oscilloscopes can perform a loop response test to provide the frequency response ...
However, it requires a coherent cryogenic microwave pulse generator that is compatible with superconducting quantum circuits ... To drive the pulse generator, the team employed an arbitrary waveform generator with a 1 GHz sampling rate.
Depending upon the use of the software DDS either for a single tone generator or an arbitrary waveform generator (AWG for complex waveforms), the AAF will be optimised for out-of-band attenuation or group delay distortion ...Digital Waveform Generation.
Capture rate can reach 4.5m acquisition/s ... “Security and documentation features come standard ... Options include adding 16 digital channels, a dual-channel 100MHz arbitrary waveform generator and protocol decode ... .
Each output is backed by a dc – 2Gsample/s 14bit arbitrary waveform generator with 1GHz bandwidth and a 6GHz 14bit DAC (after internal 3x interpolation, said the comany).
Called PicoScope 6428E-D, it has four 50Ω input channels and four input ranges per channel (±50, ±100, ±200 and ±500mV). Maximum vertical resolution is 12bits ... An internal arbitrary waveform generator works up to 200Msample/s at 14bits ... .
