high frequency band
英 [haɪ ˈfriːkwənsi bænd]
美 [haɪ ˈfriːkwənsi bænd]
网络 高频段; 高频带
双语例句
- Image Quality Assessment Algorithm Based on High Frequency Band of Haar Wavelet Transform
基于Haar小波变换高频特征的图像质量评价算法 - As a result, we accurately estimate the effective signals in high frequency band and better the noise suppression, thus broadening the effective frequency band.
这样做的结果，使高频段有效信号的估计更加准确，能更好地改善去噪效果，从而达到拓宽有效频带的目的。 - The circular region F-norms in low frequency band of wavelet transform is used as color feature of the image and the energy ratio of high frequency band is used to form texture descriptor.
颜色特征采用整数小波低频系数矩阵中环形区域的F-范数，纹理特征则采用高频部分的能量比值。 - Study on conducted interference suppression characteristics of high magnetic loss material in high frequency band
高频高磁损耗材料传导干扰抑制特性研究 - Wavelet packet analysis decomposes an im-age into low frequency band and high frequency band in different levels. Besides decomposing low frequency band in a higher scale, it decomposes high frequency band in higher scale which wavelet analysis does not do.
小波包分析将频带进行多层次划分，对小波多分辨分析没有细分的高频部分也进行了进一步的分解。 - The second, wavelet decompose of the image can get the low frequency band of more energy, it is important; the high frequency band is unimportant.
其次，图像小波分解得到的低频子带能量多，因而重要性高； - Design of broadband shipboard whip-type antenna at high frequency band
舰用短波宽带鞭状天线研究 - Based on the special disposal on the HSV color space, the color histogram taken from low frequency band is used as color feature, the statistics information of high frequency band is used as texture feature.
在对HSV彩色模型做特殊处理的基础上，采用整数小波变换低频部分的量化颜色直方图代表颜色特征，小波多尺度表示方法中细节信息的方差统计量代表纹理特征。 - This paper presents a new way to estimate the measurement variance of noise in the analytical chemistry signals for the Kalman filter by means of implementing the wavelet analysis, according to that wavelet transformation can separate the noise in high frequency band from the original signal.
根据小波变换能从原始信号中分离高频段噪声的特性，本文提出一个用小波分析法从分析化学信号中估计Kalman滤波法所需要的噪声测量方差的新途径。 - The skywave Over-the-Horizon Radar ( OTHR) operates in high frequency band ( 3-30MHz) and employs the ionosphere to reflect signal to detect targets from the top down.
天波超视距雷达（Over-the-horizonradarOTHR）工作在330MHz的高频频段，利用电离层对高频信号的反射作用自上而下地进行目标探测。 - The analysis about resonance phenomenon in high frequency band is introduced by simulation.
对干扰通道模型的宽频带仿真定性地说明了高频率点上的高峰值谐振现象。 - Based on the signal models of modulating amplitude and phase, the demodulation in cyclic domain has been developed. By scanning cyclic frequency domain, the modulating source signals can be demodulated in low and high frequency band of the cyclic domain.
基于调幅和调频信号模型推导出循环域解调方法，通过扫描循环频率域使调制源（故障）信息解调在循环域的低频段和高频段。 - The simulation result also displayed that the second order noise shaping was performed in this system which made the noise transfer to high frequency band.
系统对量化噪声进行了整形处理，使得噪声转移到了高频段。 - Effects of Chronic Exposure to High Frequency Band Noise on Rats 'Blood Pressure
高频连续稳态噪声长期暴露对大鼠血压的影响 - Utilizing phase locked loop technique with complex programmable logic devices ( CPLD), a method to perform high-speed data acquisition, storage and transmission for transformer testing, which solves the problem of data acquisition for high frequency band, is proposed.
提出了利用锁相环技术结合复杂可编程逻辑器件（CPLD）实现对变压器测试信号的高速采集、存储、传输的方法，很好地解决了对变压器高频特性信号的采集。 - With the development of communications technology to high-frequency and the rapid development of high-speed digital circuits, the electromagnetic interference ( EMI) is becoming an increasingly serious problem and the excellent soft magnetic materials able to work in the high frequency band are required urgently.
随着通讯技术向高频化方向的发展以及高速数字电路的快速发展，超高频段上的电磁干扰（EMI）问题日益突出，迫切需要能工作在超高频段且性能优异的软磁铁氧体介质材料。 - As a new radar system, high-frequency surface wave radar has more excellent detection performance but inevitable has its limitations and shortcomings, mainly reflected in failing to survive in the high frequency band.
高频地波雷达作为一种新体制雷达，除了具有更加优良的探测性能之外也有它的局限性和缺点，这主要表现在它在高频段的生存能力。 - QAM have some advantages, such as high frequency band utilization rate, good anti-interference ability and so on. It is widely used in mobile communication and satellite communication, especially in the cable digital television transmission.
QAM调制具有抗噪声性强、频带利用率高等特点，被广泛应用于卫星通信和移动通信领域中，尤其适合有线电视电缆传输。 - Perforated tube Muffler considering the temperature and the one does not was studied too, and we can see, the transmission lost of the muffler will decrease when the temperature increases, and the direction of figure move to the high frequency band.
同时对穿孔管消声器在考虑温度和不考虑温度下的情况进行研究，可知，温度增大时消声量会下降，消声频率往高频带的方向移动。 - Multi-resolution analysis for signal time-frequency decomposition is effective, but due to the transformation is according to the binary conversion, so in high frequency band the frequency resolution is poorer, and in low frequency band the time resolution is poorer.
多分辨分析能对信号进行有效地时频分解，但由于尺度是按二进制进行变换的，所以在高频段其频率分辨率较差，而且在低频段其时间分辨率较差。 - In order to obtain the best speech characteristic parameters, we put forward the improved MFCC method which is based on the traditional MFCC and its medium to high frequency band frequency characteristics is improved.
为了得到最佳的语音特征参数，本文在传统的MFCC的基础上，改进了其中高频段的频率特性，提出了改进的MFCC方法。 - Future wireless communication system requires that the system should have a good performance over multipaths fading channels, a high frequency band efficiency and ability of high data transmission rate.
未来无线通信系统要求系统在多径衰落信道中具有很好的性能及较高的频谱利用率，可以实现高速数据的传输。 - After being transformed by Hilbert Huang Transform, the features of impact acoustic signal will be extracted, such as the energy of the high frequency band, and the reduction of high frequency band and low frequency band.
对碰撞声信号进行希尔伯特黄变换后，提取高频带能量及高低频能量差等特征。 - High Frequency Over The Horizon Radar ( HF OTH) which works in high frequency band, is able to break through the earth curvature restrictions on the horizon to detect targets outside the sight.
高频超视距雷达工作在高频段，能够突破地球曲率的限制，对视距之外的机动目标进行有效检测。 - However, the high frequency band is so crowded that it is difficult to obtain a continuous clean band.
然而，高频波段频率非常拥挤，该波段较难获得连续的寂静频带。 - In high frequency band, the inside radius of the conventional mode converters is too small to fabrication, so, that is a very effective way to employ a quasi-optical mode converter.
但在高频段，传统的波导型模式变换器由波导内径过小，加工难度大，并且难与回旋管组装，因此采用准光模式变换器是一条非常有效的途径。 - With the development of science and technology of the world, human material is rich, so microwave systems is demanded more and more. Miniaturization, high frequency band is the future trend of development.
随着科技的发展人类物质世界的丰富，对微波系统的要求越来越高。小型化、高频段是未来的发展趋势。 - The three presented antennas all employ defected ground planes to obtain good impedance matching ( especially for the high frequency band).
所设计的三副天线均采用了DGS（缺陷接地结构），从而获得了良好的阻抗匹配（尤其是在高频波段）。 - FU test, for the high frequency band, we use the alternative irradiation small window method to test, in this article details these content.
在FU测试中，对于高频率段我们使用了替代照射法即小窗法进行测试，对于这些文中也有详细介绍。