frequency band的例句大全

The receive frequency range is 0~ 30MHz band-pass signal. The system consists of two parts: analog part and digital part. As for the analog part there are analog audio input, analog high-frequency input, and DA analog output.

本设计可以接收信号的频率范围为0～30MHz带通信号，分为模拟部分和数字部分：其中模拟部分有模拟音频输入，模拟高频输入和DA模拟输出；

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That is mixing the baseband signal ( linear frequency modulation signal and sinusoid signal) with two orthogonal local oscillated signal generated using direct digital synthetic technology to move the baseband signal to intermediate frequency band.

同样运用直接数字合成技术产生基带信号&线性调频信号和正弦信号，与本地载波混频后，将其频谱搬移到中频，完成数字上变频。

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Hi-frequency with narrow-band and mid-frequency with selection filter, clear up interference of the hash.

采用 多级 窄带高频及中频选频滤波, 充分消除干扰信号.

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However, the BWO operating in the frequency regime of L-band is of interest to this field.

发展L波段 相对论返波振荡器是目前这一领域追求的目标之一,但遇到的主要障碍是L波段 返波振荡器的小型化问题.

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In the evening this station changes frequency and broadcasts on another band.

该电台晚上改变频率,在另一波段播音.

词典精选例句

General harmonic wavelet is an ideal band-pass filter , due to selecting frequency range discretionarily.

广义谐波小波可任意选取频带,是理想的带通滤波器.

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Wideband FM signal occupies a wide band in frequency domain and has a time-varying direction vector.

宽带调频信号(FM)作为具有宽频带和时变方向向量的非平稳信号,其到达角的估计具有较大的难度.

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Each reader operates in a particular frequency channel of the authorised 2.45 GHz ISM band.

每一台感应读卡机都必须在不同的频道下运作,不能有任何两台感应读卡机使用相同频道.

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Purpose: High frequency low noise amplifier, VHF band amplifier application.

用途: 用于高频低噪声放大, 甚高频放大.

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To obtain the characteristics of the left-hand material radome, an Archimedean antenna with broad main beam and broad frequency band is set behind it.

用一个宽波束和宽频带的阿基米德螺旋天线作为被罩天线，研究了该左手材料天线罩的性能。

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A novel broad-band omnidirectional monopole antenna with dual-frequency is presented.

文章介绍了一种新型宽带双频全向单极天线.

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The 3 db Bandwidth is 30±5 MHz . The stop-band attenuation ( f _ 0±100 MHz ) is over 35 db except individual frequency points.

三分贝带宽为30±5MHz,阻带衰减 ( f_0±100HHz ) 除个别频率点外,其余都在35db以上.

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Generally , low reflectance within low frequency band is difficultly obtained by using ordinary lossy material.

在使用普通的损耗材料进行设计时, 很难在低频段获得较低的反射率.

网络文摘精选

The high frequency tuner is uses the voltage realization wave band cut and the channel harmonious.

高频调谐器是利用电压实现波段切换和频道调谐的.

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Purpose: UHF frequency converter, local oscillator, wide band amplifier.

用途: 用于超高频频率转换, 负载振荡器, 宽频放大.

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Purpose: High frequency, VHF band amplifier application.

用途: 用于高频 、 甚高频放大.

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The ultra-wideband system makes use of ultra-short duration pulses, which yields ultra-wideband signals characterized by extremely wide frequency band and can submerge in noise.

超宽带系统采用在时域发送极窄脉冲信号，频域产生相应的宽频带，可淹没在噪声中的信号形式，使得超宽带系统不论在民用还是军用都拥有广阔的应用前景。

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When improving the laser intensity, forbidden band towards lower frequency.

当激光强度提高时，禁带向低频方向移动。

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Orthognal Frequency Division Multiplexing ( OFDM ) is a multi-carrier digital modulation technique for broad-band wireless communication.

正交频分复用 ( OFDM ) 是一种 多载波 数字调制技术.

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Low frequency, wide band, high power transducer is a key technology of modern underwater acoustics.

低频宽带大功率换能器是现代水声发展的一项关键技术.

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