This article presents a low-cost circuit that generates narrow pulses with programmable waveform, amplitude, and position based on the spectrum stitching method. Specifically in this article, narrow pulses are generated through stitching the spectra of five subsignals, and the subsignals are generated by three regular arbitrary waveform generators with a bandwidth of 200 MHz. The experimental results of pulse generation with various waveforms, amplitude profiles, and position profiles are demonstrated. The pulses demonstrated in this article have a pulse width between 2 and 4 ns, with spectral coverage of about 500 MHz, which is well beyond the capacity of each of the three arbitrary waveform generators used in this work. The experimental results of this article indicate that the spectrum stitching technique has excellent potential to increase the effective bandwidth of arbitrary waveform generators using low-cost circuits.

中文翻译：

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基于频谱拼接生成具有可编程波形、幅度和位置的窄脉冲


本文提出了一种低成本电路，可基于频谱拼接方法生成具有可编程波形、幅度和位置的窄脉冲。具体来说，本文通过拼接五个子信号的频谱来生成窄脉冲，子信号由三个带宽为200 MHz的规则任意波形发生器生成。演示了具有各种波形、幅度分布和位置分布的脉冲生成的实验结果。本文演示的脉冲的脉冲宽度在 2 到 4 ns 之间，频谱覆盖范围约为 500 MHz，这远远超出了本工作中使用的三个任意波形发生器中每一个的能力。本文的实验结果表明，频谱拼接技术具有巨大的潜力，可以使用低成本电路增加任意波形发生器的有效带宽。