Some advantages of high pulsating frequency and good ability against interference of this flow signalgenerator are shown in the steady and dynamic experimental research on it.
Digital waveform generator which use DDS (Direct Digital Synthesize) technology has many merits like highfrequency resolution, good stability and easy to generate signal.
基于DDS技术的数字波形发生器具有频率分辨率高、稳定性好、可灵活产生多种信号的优点。
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On the aspect of hardware, they include: narrow pulse and highfrequency ultrasonic sensor's design, highfrequencysignalgenerator and receiver's design, high speed data completed sampling's design.