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.
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。
The comparison of digital frequency divider and traditional analog frequency divider shows that the former is more superadded.
比较了数字分频器与传统模拟分频器，说明数字分频器更具优点。
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