The structure reduces the rate of sampling and the speed of digital processing, and requires low-performance hardware, which can be realized easily.
采用这种结构大大降低了采样速率和数字信号处理的速度，对硬件性能要求低，比较容易实现。
The application of digital image processing technology to sampling, restoring, noise-suppressing and enhancing of X-ray images is described. Mathematical models of the processing are also given.
阐述了数字图象处理技术在射线图象采样、复原、降噪和增强过程中的应用，给出了处理过程的数学模型。
The integral period sampling, which is realized by realtime frequency calculation and voltage capture function of IC chip, is necessary for precise digital signal processing.
借助芯片的捕获功能，计算信号的实时频率，实现了整周期采样，保证了数字信号处理的精度。
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