正如这种新操作模式的名字所指的,PSK(相移键控)调制载波的相位。
As the name of the new mode says, PSK (phase shift keying) modulates the carrier phase.
未调制载波首先传送到遮罩中心和顶部,与相应发射机的输出功率相适应。
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.
移动设备包括反射器,将数据加载在与未调制载波对应的反射波上并进行反射波传输。
The mobile apparatus comprises a reflector and performs reflection wave transmission by carrying data on a reflection wave for unmodulated carrier.
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的调制载波上,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.
当电视台要把组合视频信号经由无线电波广播出去时,要先把它调制到特定频率的载波上。
When a composite video signal is broadcast over the airwaves by a TV station, it happens on a specific frequency.
解调,从载波电压中获得调制电压的处理过程。
DEMODULATION, The process of retrieving information (modulation) voltage from a modulated carrier voltage.
本文针对有载波偏移的零中频bps K调制信号提出了一种软件解调系统。
The paper presented a software demodulating system of BPSK zero-IF signal containing carrier offset.
在典型的通信系统中,调制过程是数字信号加载在载波的幅度值、载波的频率或者载波的相位上。
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.
红外发射程序的关键是定时时间到时调用中断程序来产生载波信号,对按键信号和载波信号进行调制。
The key of the infrared sending program was calling the interrupt subroutine to produce the carrier wave and modulate it with the key signal.
利用一个自适应控制器跟踪信息信号的误差对产生混沌载波的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.
有线遥控是通过专用电缆或动力线作为载波体,对信号用调制解调器传输方式,达到只用少量通道即可实现控制的方法。
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.
对测量的数据进行调制,通过载波线路或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.
频率调制的一种方式,其中载波频率在标志频率和场频率之间移动,以响应外加的情报(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).
为改善传感器的性能,微弱光强信号的检测需要载波调制和双光路补偿。
To improve its performance, a carrier modulation and double light route compensation are necessary for detecting faint optical power signals.
本文研究了自适应正交多载波频分复用(AOFDM)中根据估计出的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.
在这种情况下,信源给发射机提供一个电信号,发射机中的电路驱动光源以实现对光载波的调制。
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.
GPS系统中提出了一种新的信号形式,二进制偏移载波(BOC)调制是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.
OFDM系统自身的正交多载波调制特点,决定了其对定时误差和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.
幅度调制是用调制信号去控制载波的振幅,使其随调制信号线性变化,而保持载波的频率不变。
Amplitude modulation is to control the amplitude of signal carrier and make it change linearly with modulation signals and maintain its frequency.
针对未知调制类型情况下数字调制信号的载波频率估计问题,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.
它把输入波形表示为带有调制包络的RF载波,而该载波在时域中描述。
It represents input waveforms as RF carriers with modulation envelopes that are described in the time domain.
无载波振幅和相位调制正在成为事实上的标准,迄今已占了这个新生市场的大部分。
Carrierless Amplitude and Phase Modulation has emerged as the DE facto standard, having captured most of the nascent market to date.
介绍了一种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.
这种采用锁相技术、同步检波的原理,降低了整个系统的成本,提高了灵敏度,并使得载波信号与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.
多调制源、多载波信号的循环自相关解调分析存在交叉项的干扰,这使循环自相关解调方法的实际应用产生了困难。
The cross-term interference caused by multi-modulator and multi-carrier makes it difficult the use of the cyclic autocorrelation demodulation.
数字电视信号的调制是用载波信号的某些离散状态来表征所传送的信息,在接收端只对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.
在此基础上给出了两种混沌保密通信系方案,即混沌载波调制系统和混沌载波键控系统。
Then, the system block of two chaotic communication system is given, I, e. chaotic carrier modulation system and chaotic carrier key system.
实测结果表明,这种无变压器环形相位调制器能较好地抑制载波。
The test result indicates that the phase modulator without transformer can suppress the carrier wave.
实测结果表明,这种无变压器环形相位调制器能较好地抑制载波。
The test result indicates that the phase modulator without transformer can suppress the carrier wave.
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