high frequency spectrum
英 [haɪ ˈfriːkwənsi ˈspektrəm]
美 [haɪ ˈfriːkwənsi ˈspektrəm]
网络 高频谱
双语例句
- The source of noise in the high pressure plunger pump is identified through frequency spectrum analysis and measurements show significant reduction of noise in the improved plunger pump.
基于高压柱塞泵噪声产生的机理分析与振动频率的计算，找出产生噪声的根源；对实验测得频谱曲线进行频谱分析表明，改进后的高压柱塞泵的噪声得到了明显地改善。 - High spatial frequency terms of the turbulent spectrum are sampled and low spatial frequency terms are revised using this treatment.
该算法既可对湍流的高频谱抽样，亦可对湍流的低频谱进行修正。 - High resolution LF frequency spectrum analyzer
高分辨率低频频谱分析仪 - The ratio of the low frequency to high frequency components in HRV power spectrum ( LF/ HF) fluctuates with the change in the sleep stages.
HRV频谱中低频和高频成分的比值（LF/HF）随着睡眠深度的变化而波动。 - Analysis shows that it is possible for us to use high frequency resolution p-mode power spectrum data to search solar g-modes.
分析表明我们有可能从足够高的频率分辨率的p模式振荡的功率谱观测资料中找到g模式振荡的。 - The high frequency component of joint power spectrum plays the important role for the subsequent recognition to correlation peak. However, the intensity of high frequency component degrades quickly with the increasing of frequency.
联合功率谱的高频成份对相关峰识别具有重要作用，实验中记录的联合功率谱随着频率的增加其强度迅速降低。 - π/ 4-DQPSK is the widely used modulation method. It has high efficient frequency spectrum, and can avoid the ± π phase jump of QPSK signal, and can be expediently demodulated by differential noncoherent method.
π／4-DQPSK是目前应用广泛的调制方式，其频谱效率高，可以避免QPSK信号的±π的相位跳变，能够方便的采用差分相干解调。 - To cope with linear event aliasing, high frequency power spectrum was estimated from the low frequency power spectrum of the band-limited data via Yule-Walker equation.
处理线性同相轴假频问题时，采用YuleWalker方程由带限信号的低频功率谱预测高频功率谱，达到去假频目的。 - There were no feeding arteries in the fundus, arborescent blood flow, and medium to high velocity arterial frequency spectrum.
基底部无肿瘤滋养动脉长入，无树枝状彩色血流及中高速度动脉频谱显示； - We present a method to design a vector-hydrophone array simulator. By this method, we can treat the problem of 90 ° transposition and obtain the high delay accuracy and the frequency spectrum form of the ambient noise.
本文提出一种矢量水听器基阵模拟器的设计方案，该方案解决了矢量阵中宽带信号的90°移相问题、时延精确控制问题和宽带噪声的谱状控制问题。 - π/ 4-DQPSK is widely concerned because of its outstanding advantages such as the high utilization of frequency spectrum and the superior anti-fading performance.
π/4-DQPSK调制方式由于具有频谱利用率高、抗衰落性能强等突出特点，正受到人们广泛的关注。 - The P wave kinetic characteristics were greatly affected by water. The existence of water decreases P wave amplitude and high frequency composition of amplitude spectrum.
水对P波动力学特征的影响是十分显著的，它将使P波振幅减小，振幅谱中的高频分量减少。 - With high transmission rate, high network construction speed, low construction cost, wide coverage and high frequency spectrum utilization rate, WiMAX will become one of the most competitive wireless broadband technologies in the future.
WiMAX以其传输速率高、建网速度快、建设成本低、覆盖面积广、频谱效率高等特点成为未来最富有竞争力的无线宽带技术之一。 - When sampling frequency is quite high, frequency spectrum distributing of digital natural sampling and natural sampling is similarity.
当采样频率比较高时，数字化自然采样法的频谱分布与自然采样法的频谱分布类似。 - The Development of High Frequency ECG and Frequency Spectrum ECG Especially in the Sports
高频心电图和频谱心电图的进展及其在体育运动中的应用 - Observation of Treatment Effect for High Flow Oxygen-puff Frequency Spectrum Treating Bedsore
高流量吹氧频谱治疗褥疮的疗效观察 - With the high frequency narrow-band method by configuring the spectrum analyzer as zero-span mode, the PD signal from the UHF sensor installed inside the GIS can be phase-resolved to show the point on the AC wave where the discharge occurs.
将频谱仪设置为零扫描模式，采用高频窄带的方法，通过安装在GIS内的超高频传感器获得的局放信号可以通过相位解析的方法表征其局放的点波波形。 - By numeric simulation and animal experiment, the increase of EMG amplitude and the decrease of high frequency components of EMG power spectrum resulting from muscle atrophy are discovered.
通过数字仿真和动物实验均发现了肌肉萎缩引起肌电幅度增加和功率谱高频成分降低的现象。 - The results show that the effect of high flow oxygen-puff frequency spectrum group was better than that of normal drags group. It can significantly improve the curative rate of the ⅲ phase bedsore.
结果表明，高流量持续吹氧频谱治疗褥疮组效果优于单纯药物治疗组，能明显提高Ⅲ期褥疮治愈率。 - Then, part the sub-series from merging into details items in high frequency spectrum, the outline in low frequency spectrum, and the middle periodic items, among which three different sequences we will adopt different processing measures to further reduce algorithm time complexity.
然后，将合并的子序列区分为高频谱的细节项，低频谱的轮廓项，和中间频谱的周期项三种，对三种不同的序列采取不同的处理措施进一步降低算法时间复杂度。 - Obtaining the instantaneous seismic wavelet through the spectral decomposition to the seismic data, thus get the absorption coefficient by fitting the attenuation curve of low and high frequency part of the instantaneous wavelet spectrum to realize the reservoir fluid identification.
通过对地震资料进行瞬时谱分解，求取瞬时地震子波，然后分别拟合子波低频段和高频段的衰减曲线求取吸收系数，实现对储层流体的识别。 - OFDM is a special kind of multicarrier transmission technology which is effective against multipath fading, and it has high frequency spectrum utilization ratio to achieve data transmission efficiency.
OFDM是一种特殊的多载波传输技术，能够有效的对抗多径衰落，并以很高的频谱利用率来实现数据传输的高效性。 - To provide high speed and high quality multimedia services in multi-user system, multi-antenna technology, which can provide the high frequency spectrum efficiency, has been introduced for the new generation wireless communication system.
在多用户系统中，为了能够向用户提供更加高速、更高质量的多媒体业务，新一代无线通信引入频谱效率高的多天线技术。 - Multiple-Input Multiple-Output ( MIMO) system achieves high performance in the area of frequency spectrum usage and channel capacity, and it effectively against the effect of wireless fading channel. MIMO system has become the most superior and important technology in the 4th generation of mobile communication system.
多输入多输出（MIMO）技术在通信系统的频谱利用率和信道容量方面性能卓越，并有效地对抗无线信道衰落的影响，将成为第四代移动通信系统的关键技术之一。 - The wireless mobile communication system of future requires more frequency resource, and requests high efficiency of frequency spectrum.
未来的移动通信系统不仅需要更多的频率资源，同时要求能够在有限的频率资源中尽可能高的提高它的利用率。 - The frequency synthesizer is the critical part of the transceiver, because it could meet the high requirement for the frequency stability, spectrum purity, frequency range and the number of output frequencies.
而频率合成器是射频收发机中的关键部分，它能满足对频率稳定度、频谱纯度、频率范围和输出频率个数等的较高要求。 - This system uses some key technology such as Low Chip Rate, Time Division Duplex, Smart Antennas and Joint Detection. The advantage of TD-SCDMA system includes: high frequency spectrum efficiency, flexible frequency using, applying to data service, low cost and so on.
该系统采用了低码片速率、时分双工、智能天线、联合检测等关键技术，具有频谱利用率高、频谱使用灵活、适合开展数据业务、系统成本低等特点。 - When the film is absolutely damaged, the average spectrum curve is regarded as a reference spectrum curve. Compared with the high frequency spectrum of different laser energy, the similarity can be obtained.
将薄膜完全损伤后的平均声波频谱曲线作为基准频谱曲线，与不同激光能量等级下的高频谱曲线相比较，可以获得它们之间的相似度。 - With the advantages of high frequency spectrum utilization efficiency and resistance to multipath interference, it is imperative for orthogonal frequency division multiplexing ( OFDM) technology on the application of mobile communication development field, in the future.
凭借高频谱利用率和抗多径干扰的优势，正交频分复用（OFDM）技术在未来移动通信发展领域中的应用势在必行。 - According to the rule of frequency division, the low half frequency band or the high half frequency band, whose spectrum value were denoted zero, and the filter group were adjusted to cause the band in sequence to avoid the staggered band phenomenon.
依据频带划分规律，分别将傅立叶变换（逆变换）后的低半频段或高半频段谱值置零，并调整滤波器组使子带频带按顺序排列，避免了频带交错现象。