用预定的导频调制机制来调制每个导频子载波信号。
Each pilot sub- carrier signal is modulated with a predetermined pilot modulation scheme.
所以射频载波信号即可由System40主机中的同轴继电器进行路由。
Therefore, the RF carrier signal is routed by coaxial relays in the System 40 chassis.
不过，两载波信号l 1和l2之间的传播路径差异会给双频方法带来误差。
However, slightly different paths of carrier L1 and L2 will bring errors to estimations of the dual-frequency method.
利用电力电缆屏蔽层进行载波信号传输，已成为国内外相关机构的研究热点。
Using the cable shielding layer of power cable as a communication medium to transmit carrier signals has become a hot topic for some research institutions at home and abroad.
对高动态环境下的全球卫星导航系统(GNSS)载波信号跟踪方法进行了研究。
This article presents a study of the carrier tracking loop of the global navigation satellite system (GNSS) receiver in high dynamic conditions.
通过对载波信号的频谱分析，提出了一种能分离治疗阈值与疼痛阈值的无极性指数脉冲。
After analyzing the spectrum of a group of signals, non-polar differential exponent pulse signal was selected as carrier wave, which can separate therapy threshold and ache threshold.
多载波信号的峰值平均功率比远远大于单载波系统，而且峰平比随着子载波个数无限增长。
The ratio of peak and average power in multi carrier system is much larger than that in single carrier system, and may grow unboundedly as the number of subcarriers grows to infinity.
直流电压在内置电路被转换交流载波信号，激励传感器的初级线圈，一个集成的解调放大。
The DC excitation is internally converted to an AC carrier signal which excites the transducer's primary coil.
低阶锁相环跟踪频率斜升信号时产生的稳态相差致使环路失锁，接收机无法锁定载波信号。
Due to steady phase error, low-order PLL has a trouble in tracking frequency ramp signals, so that the receiver cannot lock carrier signals.
OFDM信号包括多个符号，每个符号具有多个携带数据的近间隔的正交数据子载波信号。
The OFDM signal includes multiple symbols, each symbol having a plurality of closely- spaced, orthogonal data sub-carrier signals carrying data.
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。
Whatever it is radar, eccm equipment, communication equipment or instrument, frequency source with high stability is needed to guarantee the quality of carrier signal.
根据红外发射管本身的物理特性，选用载波信号的频率为38K，设计制作出一种红外遥控器系统。
When designing the circuit the frequency of the carrier wave was chosen as 38K according to the physical property of the infrared sending tube.
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.
在分析高动态载波信号模型的基础上，提出了一种基于无迹卡尔曼滤波(ukf)的准开环载波跟踪方法。
After analyzing the model of high dynamic signals, a quasi-open-loop carrier tracking method based on unscented Kalman filter (UKF) is proposed.
这得益于它利用了子载波之间的正交性，使得不同子载波信号在频谱上相互重叠，却不影响它们各自的接收。
This is due to its use of the orthogonality between sub-carriers. This feature allows different sub-carrier signals overlapping in the spectrum without affecting their respective reception.
仿真试验实现了全数字化的主字母指令副载波信号的发送和解调，抗噪性能测试的结果与理论分析的结果相一致。
In the simulation, the transmission and demodulation of all digital HA safety subcarrier signal is realized. The simulated test result of noise suppression performance of HA is con...
仿真试验实现了全数字化的主字母指令副载波信号的发送和解调，抗噪性能测试的结果与理论分析的结果相一致。
In the simulation, the transmission and demodulation of all digital HA safety subcarrier signal is realized. The simulated test result of noise suppression performance...
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.
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.
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.
对于OFDM信号的每个连续符号持续时间，每个导频子载波信号放在不同的子载波信号位置，以形成滑动导频子载波信号。
Each pilot sub - carrier signal is placed at a different sub-carrier signal location for each successive symbol duration of the OFDM signal to form a sliding pilot sub-carrier signal.
适应家庭控制网络的需要，本文开发设计了网络阻波器，达到阻断载波信号、减少载波信号对电网污染的目的，保证了电力载波通信的可靠进行。
Meeting the needs of PLC signals isolation and reducing noise, network filter model has been designed. The experiment shows that it is effective in making sure that the communication is reliable.
首先是“载波感测”。以太网站先检查“以太”是否空载，如果检测到信号了就排队等候自己的发送机会。
First of all, Ethernet stations check to see if the ether is idle (carrier sense) and wait if they sense a signal.
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.
前者是通过对载波信道的频率特性时变性测试、分析，实现信号平稳传输。
The former realizes steady transmission of signal by testing and analysing the carrier channel's frequency characteristic .
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.
理论分析和仿真实验证明，在负信噪比条件下该方法可有效提高对DS-SS信号载波的检测能力。
Then we detect and estimate the carrier frequency of negative SNR DS-SS Signal have done. Theoretic analysis and simulation prove the validity of the arithmetic.
基于人工神经网络(ANN)理论，提出一种利用ANN来模拟信号传播延迟、载波相位、信号功率等参量的方法。
Based on the theory of Artificial Neural Network (ANN), an approach to simulate signal propagation delay, carrier phase, power, and other parameters using ANN is proposed.
色同步信号是为了在接收端恢复与发送端被抑制掉的色副载波同频同相的载波而设置的。
Color synchronous signal is setup to resume subcarrier color signal as same frequency and phase in receive end, which is suppressed in send end.
色同步信号是为了在接收端恢复与发送端被抑制掉的色副载波同频同相的载波而设置的。
Color synchronous signal is setup to resume subcarrier color signal as same frequency and phase in receive end, which is suppressed in send end.
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