Design and research of arbitrary waveform generator

In the arbitrary waveform generator design,the technology of DDS has the advantages such as lower cost,lower power consumption,higher resolution and faster switching etc,but has disadvantage in arbitrary programmability of waveform.The technology of software radio can generate arbitrary complex waveform,but switching time is slow.make use of the technology of combining DDS with software radio,the normal waveforms such as sine wave,triangular wave and square wave are generated by DDS,and the complex abnormal waveform is generated by software radio.In the end,the arbitrary waveform generator is accomplished by the software waveform arithmetic design and hareware platform design such as phase accumulator,sampling time generator and address generator.