• 正如这种操作模式名字所指PSK(键控)调制载波相位

    As the name of the new mode says, PSK (phase shift keying) modulates the carrier phase.

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  • 调制载波首先传送到遮中心顶部,与相应发射机输出功率适应

    The unmodulated carrier first transmits at the center of the mask, and the top of the mask adjusts to correspond with the output power of the transmitter.

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  • 移动设备包括反射器,将数据加载与未调制载波对应反射进行反射波传输

    The mobile apparatus comprises a reflector and performs reflection wave transmission by carrying data on a reflection wave for unmodulated carrier.

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  • 利用降低码片速率有效降低每路信号占有的带宽,将每路信息的比特分配在不同调制载波减少了各路信号间的多址干扰。

    Frequency width is compressed by decreasing signature-code speed and using bit-signal modulates by different carrier so as to decrease multi-user interference.

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  • 电视台要把组合视频信号经由无线电波广播出去时,要先把调制特定频率载波

    When a composite video signal is broadcast over the airwaves by a TV station, it happens on a specific frequency.

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  • 解调载波电压中获得调制电压处理过程

    DEMODULATION, The process of retrieving information (modulation) voltage from a modulated carrier voltage.

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  • 本文针对有载波偏移零中频bps K调制信号提出了软件解调系统

    The paper presented a software demodulating system of BPSK zero-IF signal containing carrier offset.

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  • 典型通信系统中,调制过程数字信号加载载波幅度载波频率或者载波相位

    In the model communications system, the modulation process also is loaded the digital signal in the carrier scope value, the carrier frequency or on the carrier phase.

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  • 红外发射程序关键定时时间到时调用中断程序产生载波信号按键信号载波信号进行调制

    The key of the infrared sending program was calling the interrupt subroutine to produce the carrier wave and modulate it with the key signal.

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  • 利用一个自适应控制器跟踪信息信号误差对产生混沌载波发射系统进行参数调制

    The parameter of the transmitting system procreated chaotic carrier is modulated by errors from an adaptive controller and information signal.

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  • 有线遥控通过专用电缆动力线作为载波信号调制解调器传输方式达到只用少量通道即可实现控制方法

    Wired remote control is a dedicated cable or power line as a carrier, the signal with modem transmission mode, to achieve a small number of channels can be used to control the method.

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  • 测量数据进行调制通过载波线路电话线进行远距离传输

    Also it can modulate measured data and perform remote transmission via carrier line and telephone wire.

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  • 频率调制一种方式其中载波频率标志频率场频率之间移动响应外加情报(数据)信号

    A form of frequency modulation in which the carrier frequency is shifted between a mark frequency and a space frequency in response to the impressed intelligence signal (frequency-shift keying).

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  • 改善传感器性能微弱信号检测需要载波调制补偿

    To improve its performance, a carrier modulation and double light route compensation are necessary for detecting faint optical power signals.

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  • 本文研究了自适应正交载波频分复用(AOFDM)中根据估计出信道特性选择调制方式的问题

    The problem of how to choose the constellation size based on the estimated channel qualities in AOFDM systems is addressed in this paper.

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  • 这种情况下,发射机提供一个电信号,发射机中的电路驱动光源实现对光载波调制

    In this case the information source provides an electrical signal to a transmitter comprising an electrical stage which drives an optical source to give modulation of the lightwave carrier.

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  • GPS系统提出了一新的信号形式二进制偏移载波(BOC)调制这种新的信号形式产生的技术关键

    Binary offset carrier (BOC) modulation is the key to the new signal form which has been put forward for GPS.

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  • OFDM系统自身正交载波调制特点决定定时误差载波频率偏差十分敏感

    The orthogonal multicarrier modulation, which is the main character of OFDM, determines that it is very sensitive to both timing synchronization error and carrier frequency offset.

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  • 幅度调制调制信号控制载波振幅使调制信号线性变化保持载波频率不变

    Amplitude modulation is to control the amplitude of signal carrier and make it change linearly with modulation signals and maintain its frequency.

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  • 针对未知调制类型情况下数字调制信号载波频率估计问题,提出了一种适用于数字调制信号的载波频率估计方法

    To estimate carrier frequency of digitally modulated signal whose modulation type is unknown, a carrier frequency estimation method for digitally modulated signal is proposed.

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  • 输入波形表示带有调制包络RF载波,而该载波时域描述

    It represents input waveforms as RF carriers with modulation envelopes that are described in the time domain.

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  • 载波振幅相位调制正在成为事实上标准迄今已占了这个新生市场大部分

    Carrierless Amplitude and Phase Modulation has emerged as the DE facto standard, having captured most of the nascent market to date.

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  • 介绍了全数字方案的电力线载波通信调制模块

    A kind of all-digital modulation module for power-line communication systems is described.

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  • 这种采用相技术、同步检波原理,降低整个系统成本提高灵敏度,并使得载波信号调制信号完全达到同步。

    The application of phase-locked and synchronous detection reduce the cost of the whole system and improve the sensitivity. Carrier signal and modulation signal achieve entirely synchronous too.

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  • 调制源、多载波信号循环相关解调分析存在交叉干扰使循环自相关解调方法的实际应用产生困难

    The cross-term interference caused by multi-modulator and multi-carrier makes it difficult the use of the cyclic autocorrelation demodulation.

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  • 数字电视信号调制载波信号的某些离散状态来表征传送信息接收端载波信号的离散调制参量进行检测。

    Digital TV signal modulation is a message transmitting method which is expressed by some discrete states in carrier wave. Only carrier wave modulating parameter is detected.

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  • 在此基础上给出了混沌保密通信方案混沌载波调制系统混沌载波键控系统。

    Then, the system block of two chaotic communication system is given, I, e. chaotic carrier modulation system and chaotic carrier key system.

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  • 实测结果表明这种变压器环形相位调制较好地抑制载波

    The test result indicates that the phase modulator without transformer can suppress the carrier wave.

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  • 实测结果表明这种变压器环形相位调制较好地抑制载波

    The test result indicates that the phase modulator without transformer can suppress the carrier wave.

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