...接地螺柱 天线接口 RSSI测试接口 中频接口 三、室外单元(ODU) 中频接口 信号类型 发射中频(TX-IF) 350MHz 接收中频(RX-IF) 140MHz 发射调制信号 ASK-TX 接收调制信号 ASK-RX 电压 -48V 四、整机ODU性能测试 初始化 批量发射校准 批量接收校准 批量常温测...
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混频器的变频损耗和噪声温度的测量可以用改变中频部分的噪声温度使接收机的系统噪声温度变化来加以确定。
The conversion loss and noise temperature of mixers is determined by changing the IF noise temperature so as to change the noise temperature of the receiver system.
最终以通过检测的跳频解跳与数字中频接收机的实物作为硕士期间的研究成果呈现。
Finally the fruit of research for my master degree presents in the way of actual de-hopping and digital intermediate frequency receivers that have passed the examination.
本文的焦点正是如何高效的实现无线通信接收系统中的数字中频部分。
The focus of this paper is how to implement the digital IF in wireless receiver efficiently.
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