I would like to generate the chirp pulse of center 30MHz, the pulse width will be of 200us and chirp bandwidth approx 5MHz. The final waveform will consist of chirp pulse and one normal 30MHz waveform of pulse width 1us and period of 20KHz. I have checked two approaches for doing this. I can do this using a FPGA and DAC. i would like to know.. Is it possible to generate the above waveform using DDS and some controller or FPGA, if so kindly suggest the DDS.