ENHANCED REAL-TIME SPECTROMETER CONTROL SIGNAL PROCESSOR UNIT

这个子项目是许多研究子项目中利用 资源由NIH/NCRR资助的中心拨款提供。子项目和 调查员(PI)可能从NIH的另一个来源获得了主要资金， 并因此可以在其他清晰的条目中表示。列出的机构是 该中心不一定是调查人员的机构。 我们开发了由实时信号处理器控制的多功能定时系统。然而，作为全套光谱仪计时和信号处理电子设备未来开发的一部分，我们将超越现有的最先进的计时系统，开始研究其概念和实施。它的一个重要部分将是2400兆触发器的现代双核数字信号处理器(DSP)。最初，它将作为与现有软件兼容的单个1200兆触发器内核运行，并将使用现有内核，经过修改以支持到主机PC的USB链接。该处理器将监督负责脉冲序列生成的现场可编程门阵列，并将在不吞噬脉冲序列的情况下提供快速的“即时”脉冲延迟和宽度更新。它还将使所有这些活动与相位周期和信号平均紧密同步。现有的系统可以做到这一点，但增强的系统将更好地实现更高级的特征，如多脉冲序列、复合脉冲生成和TPPI。

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. We have developed versatile timing systems, which are controlled by real-time signal processors. However, as a part of future developments of the complete set of spectrometer timing and signal processing electronics that could outperform existing state-of-the art timing system, we began to work on its concept and implementation. An essential part of it will be a modern dual-core digital signal processor (DSP) with 2400 Mflop. Initially it will run as a single 1200 Mflop core compatible with the existing software and will use existing Kernel, modified to support USB link to the host PC. This processor will supervise FPGAs, responsible for pulse-sequence generation, and will provide rapid "on-the-fly" pulse delay and width update without swallowing pulse sequences. It will also tightly synchronize all this activity with phase cycle and signal averaging. The existing system does this, but more advanced features, such as multi-pulse sequences, composite pulse generation, and TPPI will be better achieved with the enhanced system.