单片机通过DA对信号采样，然后在液晶显示波形。 功能：采集数据、存储并Y路输出。扩展：A,B路选通，单次/连续触发方式切换， 锁存当前波形，垂直方向增益，垂直方向移动波形-microcontroller through DA sampling of the signal, then the LCD wave. Functions : data collection, storage and Y output. Expansion : A, B channel switching, singl

The voice channel in mobile communication systems have high priority and are almost always available. By using the voice channel also for data transmissions it is possible to get the same availability as for voice calls. But due to speech codecs

Abstract—2×2 unitary precoding based on receiver feedback is applied alongside spatial multiplexing at the base station in HSDPA (D-TxAA) when the mobile terminal supports MIMO transmissios [1]. This precoding will influence achievable sumrate

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