So there's a trend towards making the transceiver as digital as possible. This trend points to software-defined radio (SDR), which appears to be this decade's Holy Grail for the RF world.
这是个很难做的混合物，所以现在有趋势将收发器做的尽量数字化，这个趋势就是软件无线电(SDR)，它看上去是RF领域在这个年代的圣杯。
Based on software defined radio theory, the digital IF acquisition system has the features of hardware-defined and system re-configured.
建构于软件无线电理论的数字化中频接收系统，具备硬件可定义、功能可重配置的特点。
On the other hand, with the rapid development of VLSI, digital receiver and software defined radio have become a popular area in modern communication systems.
另外，随着集成电路技术的飞速发展，数字接收机和软件无线电也已经是现代通信研究的一个热点。
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