尤其是本文把正则阶作为约束条件之一，从而保证了滤波器通带的平坦性和阻带的快速衰减，并且在阻带滤波器的频谱值非常接近于零。
Especially, regularity as one of the constraints assure the flatness in passband and the high attenuation in stopband, even the value of stopband response is very close to zero.
基于数字图像处理技术和分形理论，应用多重分形频谱理论对木材内部缺陷进行识别，并设定了适用于木材图像检测的分形频谱值范围；
Based on digital image processing and fractal, multifractal spectrum was applied to wood inner defects recognition, the range of multifractal spectrum was set for wood image detection.
build _ match_number的第一部分将查看录制的声波纹频谱中的当前值是否超出可接受的偏差。
The first part of build_match_number looks to see if the current value in the recorded voice-print spectrum is outside the accepted deviation.
本文讨论了调幅系数为任意值的调幅波，给出了它的表达式、频谱及调幅系数、调制效率和信噪比增益的计算公式。
The amplitude modulated wave with any modulation factor is discussed in this paper. Its expression, spectrum and formula of the modulation factor, modulation efficiency, SNR gain are given.
因此脉冲成形技术不仅能对传输信号进行频谱成形来提高系统的频带利用率，而且还可以减小信号的PAPR值。
Thus pulse shaping technique can be used not only shape the spectrum of the transmitted signal to increase the bandwidth efficiency but also to reduce its PAPR.
与FFT和幅值检测法相比，该方法能消除fft算法的频谱泄露，提高了谐波检测的精度，且适用于含有非整数次谐波的信号。
Comparing with the FFT and the amplitude measure arithmetic, the novel method can avoid the spectrum leakage and fence effect in ideal extent and improve the precision of harmonics measurement.
回顾了实验室中超声波测量Q值的四种常用方法：上升时间法、回声法、频谱振比法和波形反演法。
The four common ultrasonic methods for measuring Q value in the laboratory, rise time, pulse echo, spectral ration and waveform inversion techniques are reviewed.
通常用于求取q值的方法有升时法、频谱比法、谱模拟法及子波模拟法等。
Common methods for Q-value calculation are rise-time method, spectral ratio method, spectrum modeling method, wavelet modeling method and so forth.
利用傅里叶级数对其进行了频谱分析，计算了次数小于19次的各次谐波电流均方根值的频谱数据。
Using Fourier series, the frequency spectrum analysis was analyzed, and spectrum data of harmony wave less than 19 were calculated.
引入结构屈服水平系数，建立了结构的延性需求谱，使地震动的幅值特性和频谱特性可以分开考虑。
By introducing the yielding level factor and constructing the ductility demand spectrum, the characteristic of peak values and frequency contents of ground motions are considered separately.
介绍了一种用频率扫描抽取指定频率振动分量有效值的方法实现硬件频谱分析的工作原理。
A method of frequency spectrum analysis is introduced, which be realized by collect the virtual value of appoint frequency vibration through scanning frequency.
将透射频谱的理论值与实验值实现最佳拟合，具体反演得到了金属板的杨氏模量和泊松比。
Based on the best matching between the computed and the measured transmission spectra, the Young's modulus and Poisson's ratio of the plate are reconstructed.
仿真实验得到：频谱效率小于一定值的情况下，利用放大和网络编码转发方式的性能大大高于直接传输方式。
Simulation results indicate if the spectral efficiency is less than some certain value, the performance of amplify-forward and network coding forward are much better than that of direct transmission.
为精确估计噪声环境中的信号频率和幅值，数学证明了全相位DFT优良的抑制频谱泄漏的性质。
To estimate signal frequency and amplitude exactly under noisy circumstances, the excellent property of all-phase DFT restraining spectral leakage is mathematically proved.
较全面分析了藕联离散系统矩阵的计算方法，并利用频谱插值计算法，得出了几个较有意义的应用结果。
The algorithm of discrete system coupling matrix is analyzed comprehensively, and some useful results are obtained by the use of spectrum interpolation method.
从波形显示所要求的幅度分辨率、插值显示和频谱分析对量化精度的要求等方面进行分析，确定ADC参数；
The ADC parameters are selected according to the aspects of the required amplitude revolution to display signal, of the required quantify precision in inserting and spectrum analysis.
在不同的锯切工艺参数和锯片结构下，测量了噪声值、噪声功率、噪声电压、振动功率和振动幅值，并对其进行频谱分析。
Noise value, noise power, noise voltage, vibration power and amplitude vibration were measured under different cutting parameters of technology and frequency spectrum analysis was also made.
从离散系统状态转移矩阵的算法比较方面。借助逼近插值给出频谱插值法，结果较为实用。
Spectrum interpolation method is obtained by use of approximation interpolation, from algorithm comparison of discrete system matrix, and some useful results are obtained.
二尖瓣口血流频谱测值一般反映了左室舒张功能状态，但对几例出现的“伪正常”频谱表现难以明确评价。
Mitral valve flow spectrum commonly reflect the state of left ventricular diastolic function, but several cases with pseudonormalization spectrum can't be clearly assessed.
随着等效湍流外尺度的增加，低频谱的幅值逐渐增大，高频谱保持不变。
With the outer scale of turbulence increasing, the amplitude of low-frequency spectrum increases and the high-frequency is invariable.
用射频频谱分析仪观测一个已调波的频谱成分，记录上边带或下边带中各条谱线的幅度值，从而可以根据有关算式计算出调制信号（音频信号）的失真度。
Spectrum of the amplitude-modulated wave is observed by a radio frequency spectrum analyzer and amplitude values of every spectrum are recorded at the upper sideband or lower sideband.
结果：前列腺癌周边血流丰富，彩色血流信号呈花环状或点棒状，多普勒频谱测值为高阻力指数特征。
Results:The blood flow was abundant around the cancer tissue. The color signal of blood flow showed garland-like or punctate. The feature of its Doppler spectrum was o…
分别从声波频谱，声波能量，峰值频率，以及幅值等方面对管道内为单相气体和两相流体两种状态下的声波信号进行了研究。
Studied two conditions of acoustic signals when it was single-phase gas and two-phase flow in the pipeline from sound spectrum, acoustic energy, peak frequency and amplitude.
针对周期信号实际的非同步采样，提出一种频谱插值校正的分析法。
A new spectral interpolated compensation analysis method of periodic signals to compensate the spectral leakage caused by non-coherent sampling process is presented.
通过仿真验证了所提算法在有向通信背景下可以降低干扰温度估值，提高频谱使用效率。
Finally, the simulation shows that the proposed algorithm can reduce the interference temperature estimation valuation and improve spectrum efficiency under the directed communication conditions.
方法应用频谱仪和电子计算机对30例声带无明显病变的室带肥厚者和30例室带声带无明显病变的志愿者，测定基频、低音、音域和频率微扰百分值。
Methods By using narrow band spectrum analyses and computer we studied the parameters in 30 patients and 30 normal controls. Results The fundamental frequency and bass were lower in diseased group.
加窗插值fft算法减小了频谱泄漏误差和降低了谐波之间的相互干扰的影响。
The algorithm of interpolation of hanning Windows FFT reduce the spectral leakage error and the interference between harmonics.
频谱分析模块用于根据射频信号所存在的直流偏量输出能量变化值。
The I/Q modulator is used for receiving the added baseband signal, and converting it to RF signal.
频谱分析模块用于根据射频信号所存在的直流偏量输出能量变化值。
The I/Q modulator is used for receiving the added baseband signal, and converting it to RF signal.
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