carrier amplitude
英 [ˈkæriə(r) ˈæmplɪtjuːd]
美 [ˈkæriər ˈæmplɪtuːd]
网络 载波频率
双语例句
- A joint carrier-phase-tracking algorithm based on signal combining is proposed for carrier phase tracking of quadrature amplitude modulation ( QAM) signals.
针对低信噪比下QAM信号的载波相位跟踪问题，提出一种基于信号合成的联合载波相位跟踪算法。 - This system of modifying the carrier waves is called "Amplitude Modulation," or" AM ".
这个改变载波的系统称为振幅调制或缩写为AM。 - The remote control device crystal frequency stabilization using pulse amplitude modulation transmitter, A simpler circuit, high frequency stability, launched28MHZ are continuous carrier amplitude.
该遥控装置采用晶体稳频脉冲调幅发射机，电路较简单，频率稳定度高，发射的是间断的28MHZ等幅载波。 - The Detection and Estimation of Carrier Frequency 、 Chip Width and Amplitude of DS Signal Based on Cyclic Spectrum Theory
基于循环谱理论的直扩信号检测与载频、码片时宽和幅度估计 - The cyclic spectrum of cyclostationary signal includes information as carrier frequency, chip width and amplitude.
循环平稳信号的循环谱包含了载频、码片时宽和幅度等信息。 - Chirp signal is a second order cyclostationary signal, where the information of the minimum carrier frequency, the maximum carrier frequency and modulated slope is included in the amplitude of cyclic spectrum.
线性调频信号是二阶循环平稳信号，其周期谱幅度包含了信号的最小载频、最大载频以及调制斜率等信息。 - Because of channel distortion and carrier frequency offset, both adaptive equalization and carrier recovery should be taken into account for high-order quadrature amplitude modulation ( QAM) demodulation.
高阶QAM解调时，由于信道失真以及载波频偏相互影响，自适应均衡与载波恢复需要同时考虑。 - Considering the impact of microwave circuit's distributed parameter to carrier phase, a method of phase compensation is given to obtain the amplitude modulator in X-band. Analyzes the impact of phase error to output signal. Then circuit design is presented and simulation result is obtained.
考虑微波电路分布参数对载波相位的影响，提出了采用相位补偿方法实现X波段的调幅器，分析了相位误差对输出信号的影响，并给出了电路设计和仿真的结果。 - The stimulation waves were composed of carrier waveform signals, which were square waves and non-polar differential exponent pulse waves, and modulated amplitude signals, which were periodic signals and random signals.
运用自相关技术进行了载波为方波、无极性指数脉冲波，调幅波的调制信号为周期性信号、随机信号的电刺激波形对机体适应性问题的研究。 - Δ fam in relation to the carrier and, modulator frequencies, to the depth and duration of amplitude modulation, and to sound intensity are systematically studied.
本工作系统地研究了豚鼠△f（am）与载波频率、调制波频率、调幅深度、调幅时程、声音强度等的关系。 - It is shown that code phase tracking error and carrier phase tracking error increase as the amplitude of multipath signal increases;
计算机仿真表明，码相跟踪误差和载波相位跟踪误差随多径信号的幅度的增大而增加； - CARRIER AMPLITUDE FREQUENCY PROPERTY OF MIDDLE AND LOW VOLTAGE TRANSMISSION LINE It's significative to communicate over existing AC main wiring in order to control and monitor electric appliance.
中低压电力线路载波幅频特性利用原有电力线路传送数据，以达到对用电设备进行监测、控制的目的，是一件非常有意义的事情。 - A wavelength conversion method was demonstrated using cross-gain modulation caused by gain compression and interband carrier absorption in multi-quantum well semiconductor laser injected by a signal light. The signal amplitude of the conversion light changes with bias current of the laser diode.
实验利用光注入多量子阱半导体激光器产生的载流子消耗和带间载流子吸收产生的交叉增益调制效应，实现波长转换，转换光的光强变化幅度与偏置电流有关。 - Chip Width, Carrier Frequency and Amplitude Estimation of DS Signal Based on Cyclic Spectrum Amplitude
基于循环谱包络的扩谱直序信号的码片时宽、载频、幅度估计 - Many kinds of signals in the actual environment can be simulated through adjusting the parameters including carrier wave frequency, bit rate, output signal amplitude, length of pseudorandom sequence and SNR, which can provide data for the algorithm research about parameter estimation of DSSS signal.
该信号源能通过载波频率，码率，输出信号幅度，伪码长度及信噪比进行调整来模拟现实环境中的多种信号，为估计DSSS信号参数的算法研究提供数据。 - Radar signal Carrier Frequency and Pulse amplitude are very important parameters in radar countermeasure and radar reconnaissance.
雷达信号载频与脉冲幅度是雷达侦察与对抗的重要参数。 - It is shown that our analyzer has the ability to guide the receiver to lock on the carrier even when the carrier amplitude is smaller than that of the subsidiary lines of subcarriers.
分析表明，甚至在载波谱线低于副载波谱线时，该分析器也能把精密跟踪接收机引导到载波上而不致错锁。 - With the analysis of traditional data transmitting method in power line carrier channel, this paper introduces a new transmission device which adopts octal quadrature amplitude modulation instead of frequency shift keying to achieve the requirement of multi-purpose 1 200 bps data transmitting.
通过对传统载波数据传输方式的分析，介绍一种新型电力线载波数据传输装置，采用八进制正交振幅调制替代频移键控调制，实现上音频复用传输1200bps数据。 - Based on the analysis of carrier receiver limited amplitude interference, provide a way of circuit modification.
通过对载波接收机限幅干扰分析，提出电路改进的办法。 - An all-digital carrier phase acquisition scheme was presented to solve the problem of carrier phase recovery, which is specially critical and hard in the demodulation of trellis-coded quadrature amplitude modulation ( TC-QAM).
针对TrellisCodedQAM（TC-QAM）解调系统中载波相位恢复难、收敛速度慢等问题，提出一种全数字方式实现的载波相位恢复方法。 - Four indices of trajectory image which are Maximum Adjacent Distance, Carrier Component Similarity, Overlay Area and Mean Amplitude were presented.
针对轨迹图像，定义了最大邻近距离、载体分量相似度、扰动覆盖区域和平均幅度四项指标。 - The effects of carrier leakage and amplitude/ phase imbalance on the LINC output signal spectrum are studied by means of mathematical derivation and simulation. 3.
推导了正交调制器的载波泄露、幅度不平衡和相位正交误差对LINC输出频谱的影响。 - 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。 - 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。