通过一个不用调谐就能找到正确的通讯频率的新型超小无线电收发器，这些电脑可以互相通讯。
A new super-compact radio that needs no tuning to find the right communications frequency enables these computers to speak to each other.
移动互联网接入于1999年由ntt DoCoMo(日本最大的移动运营商，市场占有率55%)首创。如今许多用户依靠手机收发电邮的频率已经和通话不相上下。
NTT DoCoMo, the leading mobile operator with 55% of the market, pioneered mobile Internet access in 1999, and today many subscribers rely on their phones as much for E-mail as for voice calls.
频率合成器是射频收发机中非常重要的模块，是用于频率转换和频道选择的本地振荡源。
Frequency Synthesizer (FS) is a very important block, which is used in a wireless transceiver as a local oscillator for frequency translation and channel selection.
研究了一体化二次变频收发信机中各种组合频率干扰的产生原因：主要是由于混频器和放大器的非线性。
This paper investigates various combined frequency interference in integrated and double-converted transceivers, and points out that the reason is the non-linearity of frequency mixer and amplifier.
在接收无线数据之后，收发信机30可以进行各种处理，例如包括频率转换以及按照需要的调制方案进行调制。
Upon receipt of wireless data, transceiver 30 May perform various processing including, for example, frequency conversion and modulation according to a desired modulation scheme.
提出了一个欠采样中频收发器的体系结构，它在中频数字化以前先通过欠采样将中频频率变到一个较低的频率。
A receiver architecture is presented that utilizes the subsampling concept to down-convert the IF signal to a lower IF before been digitized.
频率综合器是SRD收发器的关键模块，本文主要工作是研究与设计应用于SRD收发器的频率综合器。
Frequency synthesizer is the key block of SRD transceivers, and this thesis concentrates on the research and design of frequency synthesizers for SRD applications.
本发明公开了一种双环路频率综合器及其粗调环路的调谐方法，属于无线收发机中的 频率综合器技术领域。
The invention discloses a dual-loop frequency synthesizer and a tuning method of rough adjustment loop thereof, belonging to the field of frequency synthesizer in wireless transceiver.
开关的收发器和检查的TX频率范围。
Switch on the transceiver and check the TX frequency coverage.
给出了收发通过全“0”或全“1”移相状态下的幅相频率特性及噪声系数频率特性。
Some performances. such as amplitude-frequency, phase-frequency and noise-frequency in the case of"0"or"1 "phase status of transmit-receive channal are given.
为了实现跳频电台之间的正常通信，收发双方必须在同一时间同步地跳变到同一频率。
In order to achieve normal communication between the frequency-hopping transmitter and the receiver, the two sides must send and receive information over the same frequency at the same time.
他的研究兴趣是在蜂窝和超低功率应用的收发器和频率合成器的实现。
His research interests are in the implementations of transceivers and frequency synthesizers for cellular and ultra-low power applications.
他的研究兴趣是在蜂窝和超低功率应用的收发器和频率合成器的实现。
His research interests are in the implementations of transceivers and frequency synthesizers for cellular and ultra-low power applications.
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