英德
有道
百度
谷歌
图片
维基
百科
下变频 [xià biàn pín]
[电子] down-conversion
- 设计并优化了一个基于共用跨导级结构的用于超高频RFID阅读器的正交下变频混频器。
A quadrature down-conversion mixer based on this topology is designed and optimized for an ultra high frequency RFID reader. - 最后，基于FPGA对数字下变频进行了设计及实现，具体包括：算法仿真、VHDL描述、FPGA仿真和实际系统测试。
At last, this thesis realizes digital down converter based on FPGA, and the whole designing process includes algorithm simulation, VHDL description, FPGA simulation and real system test. - 数字下变频技术的基本功能是将宽带高速数据流信号转变成窄带低速数据流信号，以便DSP实时处理。
The basic function of digital down-conversion technology is to transfer wideband high speed data signals into narrowband low speed data signals, so that DSP can process them in real time.
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