基于感应加热研究现状，利用微机对中频电源控制电路实现了数字化。
On the basis of the study situation of induction heating, the digitization of the rectification control circuits of medium frequency power supply is achieved by using microcomputer in this paper.
以采样定理为基础，通过对三种跳频电台采样方案的比较得出结论，黑盒中频数字化方法是目前最合理的选择。
Based on sampling theorem, by the comparison of three sampling scheme, and the conclusion is drew that the black box of medium frequency digital is the most reasonable choice.
结合虚拟仪器的特点，提出并实现了一种虚拟射频频谱仪的方案，着重介绍了其中的中频数字化实现方法。
Combined with the features of virtual instrument, the scheme realizing virtual RF spectrum analyzer is presented and realized in this paper, and digital intermediate frequency method is emphasized.
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