At last, an intelligentized testing instrument for electric wire high frequency carrier wave channels is developed.
在此基础上,研制开发出了一套智能化电力线高频载波通道测试装置。
Whatever it is radar, eccm equipment, communication equipment or instrument, frequency source with high stability is needed to guarantee the quality of carrier signal.
无论是雷达、电子对抗,还是通信、仪器设备等都需要高稳定度的频率源,以保证载波信号的质量。
For high requirement of transmitting carrier in TV transmitter, frequency synthesizer as one of the most important parts in transmitting system is researched in this paper.
就电视发射机对发射载波的高要求,论文对电视发射系统中关键部件之一的频率合成器进行了研究。
One way to get such a signal into a human may be through use of a high frequency carrier frequency.
一种将这种信号传入人脑的方法是通过加载了高频的频率。
The algorithm features the large estimation range for carrier frequency deviation and high estimation accuracy.
该算法具有较大的估计载波频率偏差的范围和较高的估计精度。
The remote control device crystal frequency stabilization using pulse amplitude modulation transmitter, A simpler circuit, high frequency stability, launched 28MHZ are continuous carrier amplitude.
该遥控装置采用晶体稳频脉冲调幅发射机,电路较简单,频率稳定度高,发射的是间断的28MHZ等幅载波。
GPS carrier phase integer ambiguity fast resolution is still the key issue and challenge for high accuracy survey and navigation, especially for single frequency receiver.
对于高精度测量和导航,GPS载波相位整周模糊度的快速求解仍然是一个难点,尤其对于单频接收机。
A single carrier modulation scheme suitable for use in high frequency communication systems is provided that achieves improved residual frequency error and phase noise estimation.
提供了一种实现改进残留频率误差和相位噪声估算的、适合于在高频通信系统中使用的单载波调制方案。
Modulation is the process of loading the information to be delivered onto a certain(signal carrier) signal of high frequency.
调制是将要传送的信息装载到某一高频(载波)信号上去的过程。
High precise measuring and tracking of carrier frequency-deviation is necessary to the realization of a high performance phase locked loop in carrier recovery.
载波恢复中高精度的频偏检测与跟踪是高性能锁相位环路实现的必要条件。
About GPS receiver, the research importance is high-dynamic receiver. The key is to solve the Doppler frequency shift caused by the high-speed movement of carrier.
在GPS接收机中,目前研究的重点是高动态环境下的接收机,其关键是解决载体高速运动给GPS接收机附加的多普勒频移问题。
The carrier channel is an important component of high frequency protection, and whether it is normal related to the protection action correct or not.
高频通道作为高频保护的重要组成部分,其是否正常关系到保护能否正确动作。
By changing the number of relative carrier-envelope phase, broader spectral broadening and higher spectral intensity, especially the spectral intensity of high frequency components, can be obtained.
通过改变相对载波包络位相的数值可以获得更宽的频谱宽度及更高的光谱强度特别是高频分量的光谱强度。
Improvement of high frequency photoconductive decay technique for measuring silicon minority carrier lifetime is described.
本文介绍高频光电导衰减法硅单晶少子寿命测试技术的改进。
Its carrier wave is a kind of the bearing's inherent vibration with high frequency, and its modulating wave is a pass vibration corresponding to the local defect.
该调幅振动的载波为滚动轴承的某一高频固有振动,而调制波为与缺陷或损伤有关的通过振动。
Multi-carrier transmission technology-Orthogonal Frequency Division Multiplexing (OFDM), as the core technology of beyond 3g, has the characteristic of high data rate.
而多载波传输技术-正交频分复用(OFDM),作为后三代移动通信的核心技术,则具有高数据速率传输的特点。
Multi-carrier transmission technology-Orthogonal Frequency Division Multiplexing (OFDM), as the core technology of beyond 3g, has the characteristic of high data rate.
而多载波传输技术-正交频分复用(OFDM),作为后三代移动通信的核心技术,则具有高数据速率传输的特点。
应用推荐