carrier signal
英 [ˈkæriə(r) ˈsɪɡnəl]
美 [ˈkæriər ˈsɪɡnəl]
网络 载波讯号; 载波信号; 载波; 载子讯号
双语例句
- With improved phase estimation method, a carrier signal phase with phase noise can be estimated, while loop SNR also increases.
并采用新的相位估计方式估计含相位噪声的载波相位，提升了该条件下的环路信噪比。 - Cross-zero is a classical analytic method of modulate-domain which has good effect on the carrier frequency signal, linear frequency modulation signal and FSK signal.
过零检测法是一种经典的调制域分析方法，它原理简单，计算方便，对单载频、线性调频和FSK信号有着较好的效果。 - In digital communication, a transmitted carrier signal that consists of the 12 single sidebands being sent over the transmission circuit.
在数据通信中，一种传输载波信号，由传输电路上发送的12个单边频带组成。 - Propose that obviously improve the worsening phenomenon of stability of accelerometer system due to DA and AD through the division operation of amplititude-modulated signal and carrier signal.
提出通过将调幅信号与载波信号进行相除运算，来显著的改善由于模数转换器和数模转换器引起的加速度计系统稳定性恶化现象。 - By using multi-route selector to connect modulation signal and carrier wave signal, random switching of multi-modulation signals can be realized.
利用多路选择器连接调制信号和载波信号，可以实现多种调制信号的仟意切换。 - As a new branch of information security, information hiding technology including digital watermarking and steganography aims to protect intellectual property rights of multimedia contents and to send secret messages under the cover of a carrier signal.
信息隐藏是信息安全领域中的一项新兴技术，主要有数字水印和数字密写两大分支，分别用于多媒体数据的版权保护和隐蔽通信。 - Because the signal related to noise directly cannot be picked up during filtering noise in carrier signal, the carrier freqnency signal amplifying technology may be adopted to pick up available signal from broad band noise signal.
由于滤除架空线载波信号中的噪声中，不能直接取得与噪声相关的信号，则采用载频信号增强技术，从宽带噪声中提取有用信号。 - On the basis of technical property of the sound card and line carrier network interface. A new method about line carrier speech signal by using a sound card is put forward.
在讨论了声卡技术特征和载波网络接口的基础上，提出了一种利用计算机声卡采集载波台语言信号的新方法。 - Whatever it is radar, ECCM equipment, communication equipment or instrument, frequency source with high stability is needed to guarantee the quality of carrier signal.
无论是雷达、电子对抗，还是通信、仪器设备等都需要高稳定度的频率源，以保证载波信号的质量。 - According to the characteristic of the concentrated meter reading system with low-tension electric power carrier signal, in this article we give detailed description of its design procedure and way of realization in relation to data communication.
本文根据低压电力载波集中抄表系统的组成结构特点，针对其中的数据通信问题，详细论述了该系统的设计思想及实现方法。 - Indispensable for high quality optical carrier signal reception in a large dynamic range, AGC analog optical receivers are widely used in the optical transmission of radio and microwave signals, such as fiber CATV, direct broadcast satellite TV, wireless communication and radar.
自动增益控制模拟光接收机广泛应用于光纤有线电视、光纤直播卫星电视、无线通讯及雷达等射频微波信号光传输，是实现大动态范围光载波信号高质量接收必不可少的一项技术。 - Owing to the complexity of the ingredients of the frequency spectrum of FSK signals, which contain the continuous spectrum introduced by the baseband signal and discrete spectrum introduced by the carrier signal, it is difficult to accurately measure the frequency ingredients of FSK.
FSK信号的频谱成分比较复杂，包含基带信号引入的连续谱和载波信号引入的离散谱两部分，传统的信号处理方法难以准确测量。 - This paper, based on the measurement of the impedance-frequency characteristics and attenuation characteristics of the city telephone line network, proposes a method of FDM to transfer carrier signal, such as digital modulation signal, tone carrier signal, etc.
在对市内电话信道阻抗特性、衰耗特性测试的基础上，提出市话线路可采用频分复用的方法传递载波信号，如数字调制信号、语言载波信号等。 - This paper presents an approach to sensorless control of interior permanent magnet synchronous machine using a high frequency carrier signal injection.
本文以内埋式永磁同步电动机为研究对象，提出了一种基于高频载波信号注入和卡尔曼滤波的无传感器控制方法。 - The result show that the SNR shows stochastic resonance with the varing of not only intensities of the pump noise and quantum noise, but also the frequency of a high frequency carrier signal and frequency of a low frequency periodical signal.
结果表明，信噪比不但随着抽运噪声和量子噪声强度的变化出现随机共振，而且随着高频载波信号频率和低频调制信号频率的变化也出现了随机共振。 - For the same line with obstructor at the user's terminal the attenuation of carrier signal is weak, when transferring distance is 30km, the applicable frequency range is 0.1~ 200kHz.
当用户处有阻波器时，载波信号衰减很小，在30km范围内可用频段为0.1～200kHz。 - The coupling device is one of the most important devices for the power line communication systems. A convenient, safe and high efficiency couple device is the basis to realize power line communication of high frequency carrier signal.
电力线耦合装置是电力线载波通信系统中关键环节之一，一个安全、高效、简易的高频载波信号耦合装置是实现电力线通信的基础。 - Sensorless control of PMSM based on carrier signal injection
采用载波注入的永磁同步电机无传感器控制 - To overcome the disadvantages of traditional CATV signal monitoring method, a CATV signal monitoring system based on ISA bus is presented, which realizes the automatic monitoring and alarming of the picture signal, sound signal and sound carrier signal at the same time.
针对传统有线电视信号监测方法的缺陷，提出了一种基于ISA总线的有线电视信号监测系统的设计方案，实现对有线电视图像、伴音和伴音载频信号的自动监测与报警。 - Modern wireless communication, using narrowband technology, needs carrier signal, which makes the circuit of wireless devices complex 、 large power consumption 、 low data rate.
现代无线通信，采用窄带技术，需要载波信号，这样使得通信设备电路结构复杂、功耗大，通信数据传输速率不高。 - Theoretical derivation show that, if carrier signal used in the demodulation process has different frequency or phase with the signal applied on PZT, the demodulated signal will be less stable and will have lower amplitude.
针对相位生成载波解调过程中需要使用同源载波的机理进行了理论推导，得出如果载波不同源会使得解调出的信号幅度太小或不稳定的情况。 - Non-coherent energy detection was the key technique of frequency-shift keying modulation, so the system introduced Chirp signal as the carrier signal for its performance with sharp energy peak, easy to detect and judge to reduce the probability of error.
非相干能量检测是频移键控技术的关键，系统采用线性调频信号作为载波信号，其匹配信号具有尖锐的能量峰值，易于检测、判决，以降低误判的概率。 - With two light source generating optical carrier, the modulated carrier signal is processed by microwave photonic filter, completing instantaneous frequency measurement, but it is complex, high cost and a small range of bandwidth.
利用两个光源产生光载波，采用光子滤波器对调制载波信号进行处理，可以实现瞬时测频，但结构复杂，成本较高，测频带宽窄。 - The main function of carrier NCO and code NCO in Base band receiver is modulation of carrier signal and generation of spread code, which can make the timing of data in receiver consistent and accurate.
基带接收机中载波NCO和码NCO模块的主要功能是载波信号的调制和扩频码信号的生成，使接收机的各种模拟数据时序准确一致。 - Kluyveromyces Fragilis-kan can be used as constructing promoter, try different transformation among carrier signal peptide. 2.
脆壁克鲁维酵母K.f.-kan可作为构建改造启动子，尝试不同信号肽的中间载体。 - Using a design of band-limited filter which can ensure normal safe operation of the baseband transmission system, at the same time which can reduces interference of the baseband signal on the high frequency carrier signal, thus optimizing the bandwidth of the MVB baseband transmission system. 2.
采用增加带限滤波器的设计方法，在确保基带传输系统正常安全运行的同时，降低基带信号对高频载波信号的干扰，优化了MVB基带传输系统的带宽。 - Introduce the synchronous carrier extracting method to the actual system, and successfully extract the carrier signal, validate the feasibility of this method.
将同步载波提取方法应用于实际系统中，成功的应用提取的载波解调出了加载在传感光纤上的外界振动信号，验证了该方法的可行性。 - The SR effect of the signal was realized only for the low-frequency amplitude-modulating signal, not for high-frequency carrier signal, by using the step-changed numerical algorithm and the adjustment of the bistable system parameters.
通过调节计算步长和双稳系统形状参数，成功实现了直接增强放大弱的低频调制信号，而不是高频载波信号。 - With the development of synchronous broadcasting technology, the synchronous carrier signal generator based on the homologous modulation technology and the frequency synthesis technology is becoming highly valued.
随着同步广播技术的发展，使用同源调制技术和频率合成技术制成的同步载波发生器越来越受到重视。 - Simulated the algorithm of carrier extraction with software, and found that, the amplitude of the extracted carrier signal will drift if the vibration signal contains low frequency components.
对载波提取的算法进行软件仿真，得出用该方法提取载波时，若在振动信号中含有低频成分，提取出的载波幅度会出现一定程度的漂移。