这部分项目搜寻离地球最近的1000颗可能存在的恒星，这些恒星对频率范围在1000到3000兆赫内的信号有着较高的灵敏度。
This part of the project is searching the nearest 1000 likely stars with high sensitivity for signals in the frequency range 1000 to 3000 MHz.
它可以接收Ku波段信号，频率范围10.7 ~ 12.75GHz，通过使用一个外部10MHz参照物改进频率的稳定性。
It receives Ku frequency band signals from 10.7 through 12.75 GHz with improved frequency stability by using an external 10 MHz reference.
带宽说明了仪器在某一频率范围内响应时变信号的能力。
Bandwidth describes the instrument's ability to respond to time varying signals over a range of frequencies.
只要输入信号落在检测器的频率范围内，则功率计就能给出准确的的功率。
If the input signal is anywhere in the frequency range of the detector, the meter will make a valid power measurement.
功率放大器可以实现交流信号的准确跟踪和放大，输出频率范围可达1000赫兹。
And the power amplifier can realize accurately tracking and amplification for ac signals with frequency range up to 1000hz.
利用正弦波作为输入信号时，测出了此驱动电路的频率响应范围。
When sinusoid signal is inputted, we measured the frequency response range of this circuit.
通过对地面卫星信号覆盖区内的多普勒频率偏移及不确定性范围的计算，给出了卫星导航系统信号的多普勒频率偏移与接收机位置之间的关系。
By calculating the Doppler shift and its uncertainty in the signal covering area, the relation between Doppler shift and the position of the receiver is obtained.
本文结合恒力磨削的研究，基于遗传算法提出了一种可自动地确定测试信号频域特征参数频率计算范围的方法。
In study of constant force grinding, a calculation method, which could calculate frequency range of frequency feature parameter automatically, is presented based on generic algorithm in this paper.
脉络波谱图分析查明了中范围（频率）信号波动的形态结构变化。
Venation wave spectrum analysis finds out shape-structure change of mid-frequency signal fluctuation.
视频带宽不同于仪器本身接受信号的频率范围；
Video bandwidth is not the frequency range over which the instrument itself can accept signals;
便携式火箭发射器所产生的冲击波和强脉冲噪声属非稳态信号，具有较宽的频率范围。
The shock wave and strong pulse noise, which produced by light rocket launcher, are belong to a non stationary signal process with a wide frequencies.
本文探求在较大的被测频率信号范围内获得相同的测量精度与响应速度的测量方法及电路。
The circuit and method for obtaining equal measuring accuracy and response speed in a wider frequency signal range are discussed in this paper.
受电极界面反应影响，电极在探测信号时对应着一个最佳工作频率范围。
The optimum of frequencies of the electrode was limited by the rate of the reaction on its surface.
高温材料，相控阵传感器，低电流的要求较稳定的输入电压，环境温度，或输出频率范围的输出信号。
The high temperature materials, phased array sensor, and low current requirements stabilize the output signals over a wide range of input voltage, ambient temperature, or output frequencies.
引入了一种变量替换，通过这种变换可以处理频率超出随机共振理论要求范围的信号，以满足工程实际应用。
A kind of variable substitution in processing high frequency signals was suggested to improve the feasibility of the resonator in practical use.
参数的非均衡是一个过滤器削弱或加强的信号在一定的频率范围。
A non parametric equalizer is a filter which weakens or strengthens a signal in a certain frequency range.
这种芯片非常适用于信号的幅值和频率动态范围大的测量系统。
This chip is applicable for the measure of signal, whose amplitude and frequency has high dynamic range .
实验结果表明：该系统能够正确采集声卡设计频率范围内的信号，可用于该范围内的一般数据采集与应用。
Experiment results prove that the system can acquire signals in the frequency range designed for sound card correctly, and can be applied in the domains of data acquisition and general analysis.
实验结果表明本信号电源工作稳定、频率变化范围大，同时具有良好的动静态性能。
Test results show that the signal power supply has good stability, wide frequency range and good performance.
采用基于内源信号的脑光学成像方法，在大范围视皮层研究了不同空间拓扑位置对应的皮层区的对光栅刺激空间频率反应特性。
Using optical imaging based on intrinsic signals, we studied spatial frequency tuning characteristics of cat primary visual cortex at different visual topological locations.
该系统采用模块化设计，集成度高、应用范围广，适合不同频率的信号采集与分析。
This system is designed by modularization, so it has high integration, wide application field, suits different frequency signal acquisition and analyse.
压力信号的功率谱密度具有频率波动范围窄、幅值大的特点；
They obey normal distributions. Distributions of power spectral density (PSD) for pressure signal display narrower frequency range and higher amplitude.
该方法可以在高采样频率条件下实现低流速血流信号的局部可视化，同时由于局部范围内采样分辨率的提高，将获得更细致的血流声谱图。
Even if the sampling rate is high, the method makes part of a low blood flow signal clearly visible in frequency domain, and more detailed blood flow sonogram can be obtained.
理论分析和实验结果表明，干涉仪输出光强的幅度和频率与施加在压电陶瓷上的交变信号电压的幅度和频率有关，且在一定的条件范围内呈良好的线性关系。
Theoretical analysis and experimental results show that the amplitude and frequency of the output light intensity are linearly related to that of the sinusoidal signal voltage applied on PZT.
该装置可以显示水平光栅、垂直光栅和棋格信号，具有六档不同的空间频率、十二档时间频率、十二档视野范围和显示时间控制。
There are six grades of space frequency, twelve grades of time frequency, twelve grades of visual field and different showing-time for each patterns.
结果表明，改进后仪器接收到的地震反射波主振幅、主频率、频带宽度、垂向分辨率及仪器记录信号的有效动态范围均有不同程度的提高。
The results show that the main amplitude, main frequency and frequency band of reflected wavelet and the effective dynamic range of system have different degrees of increase.
其思路是将信号先通过单边带调制，将较低频率调制到需要的频率范围；然后采用对基带信号的数字预补偿方法来抑制镜像频率和载波泄漏，从而达到应用的目的。
Then we perform digital pre-compensation method, which can be used in the processing of base band signal to reject image frequency and protect carrier leak to meet the application purpose.
现有的随机共振系统只能应用于低频率信号检测或待测信号频率已知的高频率信号检测，这束缚了系统的实用范围。
Stochastic resonance can only be applied to low-frequency signal or the known high-frequency signal detection. So the applications of the system are severely constrained.
现有的随机共振系统只能应用于低频率信号检测或待测信号频率已知的高频率信号检测，这束缚了系统的实用范围。
Stochastic resonance can only be applied to low-frequency signal or the known high-frequency signal detection. So the applications of the system are severely constrained.
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