Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive-applied technique.
固定频率源可以在在通讯系统和雷达系统中作为本机振荡器，也可以作为数字电路的基准时钟信号，因此得到了广泛的应用。
There are some reference values to the application of digital signal processing in test system based on virtual instrument.
对数字信号处理技术在虚拟仪器测试系统中的应用具有一定参考价值。
From system model selected, the lengths of hypothetical reference digital link and digital section are chosen, then the properties of bit error and jitter are determined.
从选定的模型，决定了假想参考数字通道和数字段的长度，确定了误码性能和抖动特性的指标。
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