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 high-speed digital frequency mixer made of medium-scale integrated circuits and the design of a high power transistor amplifier are also presented.
介绍了高速中规模集成数字频率合成器、晶体管高频大功率放大器的设计。
To overcome this problem, we think to digitized the signal at medium frequency, even RF, and then demodulate it in digital domain.
为克服这一问题，人们考虑在中频，甚至射频就对信号数字化，再在数字域内进行解调。
To overcome this problem, we think to digitized the signal at medium frequency, even RF, and then demodulate it in digital domain.
为克服这一问题，人们考虑在中频，甚至射频就对信号数字化，再在数字域内进行解调。
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