spectral frequency的例句大全

regarding frequency modulated continuous wave signal, the spectral analysis of instantaneous frequency is used to extract modulation parameter.

对于调频连续波信号，对其瞬时频率进行频谱分析来提取调制参数。

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It details core algorithm of the instrument including TDR test, frequency response test, digital tracking filter, power spectral density test, load coil detection, DMT test, voltage test, current test, resistance test and capacitance test.

详细阐述TDR测量、频响测量、数字跟踪滤波、功率谱密度测量、加感线圈检测、DMT测量、电压测量、电流测量、电阻测量、电容测量核心算法。

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fast fourier transform is a necessary precondition of digital spectral analysis as the basic computing between the time domain and frequency domain.

快速傅立叶变换（FFT）作为时域和频域转换的基本运算，是数字谱分析的必要前提。

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psd ( power spectral density) curves of en for the alloy with various dod are composed of white noise at low frequency and flick noise ( 1/ f α noise) at high frequency, though their en are seriously different.

虽然不同放电深度的该合金电极EN信号有明显的区别，但其功率密度谱（PSD）曲线均由低频区的白噪音和高频区的闪烁噪音组成。

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spectral correlation analysis to minimum frequency shift keying signal

最小频移键控信号的循环谱分析

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as for millimeter wave communication system, it is generally required to have good performance of frequency stability and spectral purity.

而且，随着科技的进步，人们对毫米波系统的性能要求愈来愈高。

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The simulation results show that for this algorithm there is no bias in the frequency estimation, and the spectral line splitting is very week and the spectral resolution is high.

计算机仿真表明，用这种方法进行谱估计，不会产生谱漂移现象，谱分裂得到明显减弱，而且还具有很高的频率分辨能力。

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Then the paper presents a phase measurement method of frequency shifting based on multiple spectral bands.

并提出了一种多谱段分色频移相位测量方法,给出了测量原理和精度的分析.

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Simulation results show that compare to the rise cosine pulse, with the narrow main valve and the faster high frequency rolling and the better resisting of spectral spreading, the new type IJF code has better performance.

仿真结果表明：与传统的升余弦脉冲比较，新设计的IJF码型性能更加优越，表现为主瓣窄，高频滚降快，有效地抑制了频谱扩展。

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Double frequency spectral density functio

双重频率谱密度函数

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Double frequency spectral density functio three-dimensional dynamic spectrum analyser

双重频率谱密度函数三维动态频谱分析仪

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The EEG monitor described in this paper is concerned with the monitoring of the trend of frequency in EEG with a new method termed color density spectral array ( CDSA).

本文介绍的监护仪用彩色密度谱阵列图来监测脑电频率的变化趋势。

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OEO has many attractive proper-ties of ultra low phase noise, high spectral purity, high frequency, high stability. It can be widely used in microwave systems and fiber communication systems.

光电振荡器具有超低相噪、频谱纯、工作频率高和稳定度高的特点，可广泛应用于微波系统和光纤通信系统。

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The complex resonant frequency and radar cross abation ( RCS ) are formulated by spectral domainapproach of periodic structure.

运用无限周期结构的诸城法建立起微带阵列天线的复谐振频率和雷达散射截面公式.

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