1) radio frequency signal generator
射频信号源
1.
Design of a high voltage radio frequency signal generator based on AD9835
基于AD9835的高压射频信号源设计
2) radio-frequency signal
射频信号
1.
Down-conversion processing of the radio-frequency signal received by the antenna was made and analysed.
将Galileo空间信号结构及特性与GPS进行了比较,对接收机接收天线接收的射频信号进行下变频并予以分析。
2.
The ZigBee technology radio-frequency signal can invade power plant equipment to produce the high frequency harmonic,and the harmonic going beyond standard is able to affect security and economical operati.
ZigBee技术射频信号会侵入电厂设备产生高频谐波,谐波超标会影响电厂的安全和经济运行。
4) RF signal
射频信号
1.
Based on the characteristic extracting of RF signal in digital cable TV system, this paper puts forward an algorithm for modulation recognition between 16QAM and 64QAM RF signals.
从有线数字电视射频信号特征参数提取着手,建立了一套识别16QAM和64QAM射频信号调制方式的数学算法。
2.
Then taking the signal detection of VHF wave band for example,studies how to setting wavelet parameter to improve resolution of high frequency and using Matlab to simulate RF signal.
然后以VHF波段信号检测为例,研究如何设置小波参数来提高频率分辨率,并用Matlab来仿真射频信号。
5) radio frequency signal generations
多制式射频信号源
6) swept signal source
扫频信号源
1.
The hardware and software design of embedded swept signal source was introduced,in addition to its operation principle.
介绍了嵌入式扫频信号源的工作原理及硬件、软件设计方案。
2.
The theory of adopting DDS to generate the swept signal source and the specific realization methods are clarified.
讨论了直接数字频率合成技术,阐明了采用直接数字频率合成器产生扫频信号源的原理及具体实现方法,具体描述了AVR单片机与DDS芯片的间接访问方式、硬件接口及相应的软件设计方法。
补充资料：射频
射频
物理学术语。介于声波和红外线之间的波的频率。用于MR研究的射频常在兆赫兹(MHz)范围内。磁共振成像中，必须使用射频脉冲选择性激励特定层面的质子，以产生MR信号。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条