The spectrum division technique was used for establishing signal model of delay time measurement, and amplitude frequency characteristics of the signal after spectrum division was investigated. 利用频谱相除技术构建了延迟时间测量的信号模型,研究了频谱相除后信号的幅频特性。
This will bring on the signal transmitting delay. In this situation, it may result in that the internal Cache returns wrong snooping result because the internal Cache cannot get the conflicting information in time when the snooping transaction conflicts with the returning transactions. 由此而带来的信号传输延迟导致了在总线监听过程中,被监听事务与正在返回给内部Cache的事务发生冲突时,内部Cache却不能及时收到此冲突信息,致使内部Cache无法给出正确的监听结果。
High-speed rotation of the shell is utilized to increase the work frequency of the fuze detector, and to reduce the delay time of detector inducing signal due to filter circuit, and the general problem of long delay time of short circuit longitudinal electrostatic fuze is solved. 利用对空榴弹的自身高速旋转特性提高引信探测器的工作频率,缩短探测器滤波电路对目标感应信号的延迟时间,进而克服短路轴向探测电极式被动静电引信的信号延迟时间;
The output signal to noise ratio and the optimal delay time are obtained by very simple methods. 同时以比较简洁的方法得到了输出信噪比和最佳延迟时间的解析表达式,使本算法理论趋于完善。
It designs a real-time control algorithm called "onestep" in the processing of traffic signal control. The optimization index aims at the vehicle platoon's total delay time. 在交通信号控制中,设计了一种以车队总延误时间为优化目标的实时的onestep控制算法。
A simple analytical expression was obtained based on a two-pole model to evaluate the signal delay and rising time, which was then used to optimize the high speed clock circuit and to ensure signal non-distortion in transmission. 根据RLC互连线的二极点模型,得到一个简单的估算信号延迟和上升沿的解析表达式,并利用其实现对高速时钟电路动态优化设计,以保证信号在传输过程中不失真;
First, liver axial dynamic enhanced MRI with rapid or slow contrast administration were done to measure the time when the signal intensity of PV, HV and IVC reached the peak, in order to determine the optimal delay time for the second experiment. 第一部分做了10例肝脏横断面动态增强MRI,分为两组,分别用快速和慢速法注射造影剂,测定PV、HV和IVC达信号峰值的不同时间,以决定第二部分实验的延迟时间。
Theory analysis and simulation results proved that pulse compression performances are influenced by sampling frequency, Doppler frequency and the signal delay time between the target and the radar. There are some relations between Doppler frequency and the delay time. 在这两种方法中,采样率、目标回波信号时延和目标多普勒频率的变化对数字脉压结果都有一定的影响,并且目标回波信号时延和目标多普勒频率之间有一定的对应关系。
A vocal signal sequence is treated as that is formed by piling up pitch periods after varying integer delay time. 语音信号序列可以看成是基音周期经整数倍延时后叠加而成。
Time is important information for fast and direct acquisition of military code, and compression of signal's propagation delay time uncertainty is an effective means for it. 辅助长码直捕的一个最重要的先验信息是时间信息,卫星信号传播时延估计是减少时域搜索范围的一个重要方面。
The relation between the intensity of photon echo signal and the optical delay time is derived by using the density matrix method. The application to two pulse and three pulse photon echo techniques is given. 本文采用密度矩阵法推导光子回波讯号强度与激光光脉冲相对延迟的一般关系,得出二脉冲、三脉冲光子回波强度随时延的变化公式。
Compensation signal No ( t) includes the following variables: delay time, compensation period, compensation time, compensation data. Methods and procedures to obtain the compensation variables are discussed in detail in this paper. 补偿信号包括如下参量:延迟时间、补偿周期、补偿时间和补偿数据,文中详细论述了确定补偿参量的方法及过程。
This method firstly removes the effect of reference signal on time delay estimation, then the triple cepstrum of remain signal is made, finally estimates the time delay of signals accurately. 该方法用维纳解卷积消除了检测始波对时间延迟估计的影响,并对剩余信号进行了三次能量倒谱分析,准确直观地估计出了信号延迟时间。
The characters of the burst mode optical signal ask the transmitter for some special function such as automatic power control, delay compensation, raise/ drop time control and pulse width control. 由于突发光信号的特殊性质,要求突发式光发射模块具有自动功率控制、延时补偿、上升/下降时间控制、光脉宽控制等特殊功能。
So we put forward a set of new approaches: the cross correlation method is used to get a primary estimation value of Chirp signal delay time, then the cross-spectral MUSIC method and the cross-spectral SVD method are proposed to modify the primary value. 针对该问题,提出了先用互相关方法估计Chirp信号时延的初值,再用互谱MUSIC方法或互谱SVD方法对其进行修正的Chirp信号时延估计方法。
By pll frequency transformation for input signal, a relative signal of stepping delay is obtained. At same phase time of the relative signal, input signal is sampled. The equivalent sampling numbers and actual sampling interval of the input signal is controlled by a microcomputer program. 通过锁相环对输入信号频率变换,获得一个步进延迟的关联信号,在关联信号的同一相位点对输入信号采样,其等效采样次数及实际采样间隔由微机编程控制。
On the other hand, random changes of trigger signal transmission delay time and stray capacitor in the circuit worsen the modulator's output pulse quality and efficiency. 电路中器件离散性与系统分布参数会造成调制器输出波形质量下降,效率降低。
Due to ageing of component and mechanical wear, the measurement signal transmission of control system may produce delay. The time delay is often an important source of instability. 控制系统由于元件老化和机械磨损等原因会造成系统的量测及信号的传递等存在滞后,它的存在常常引发系统的不稳定。
Time delay estimation is an active research field in signal processing. It has various and important applications in the fields of radar, sonar, mobile communication and so on. It has got broad attention in recent years. 时间延迟估计(TimeDelayEstimation)是信号处理中一个十分活跃的研究领域,在雷达、声纳、移动通信等方面有着广泛及重要的应用,近年来备受关注。
Research of permanent magnet actuator synchronous control technology and its implementation in this paper, Synchronous control technology, the key is the signal voltage and current zero-crossing detection, circuit breaker reclosing time calculated, the delay time of phase-shifting calculations. 本文研究了永磁操动机构的同步控制技术及其实现方法,同步控制技术实现的关键是电压电流信号过零点的检测,断路器分合闸时间的计算,移相延时时间的计算。
Considering the communication systems are at difference places, the signal transmit has time delay to each other, the estimation of the unknown parameters of the delay coupled chaotic system from the observed time series is significant. 考虑到混沌通信系统处在不同的地理位置,信号传输存在时延的影响,从观测数据中估计延迟耦合系统的未知参数具有重要意义。
This thesis aims at studying the Intersection Signal Timing positive influence on several related items, such as the average queuing length, vehicles delay time, stop rate and the capacity, so that we can provide the further basis for the timing decision. 本文研究旨在提高城市道路信号交叉口配时在排队长度、车辆延误、停车率和通行能力等多个关联目标上的优化效果,为进一步的交叉口群信号配时优化决策提供基础。
The simulation results also show that the method can process the signal with Doppler frequency. 3 In the research of time delay estimation in ultra-wide band Radar, a time delay estimation method based upon the multirate theory in wavelets analysis is proposed. 同时在有一定大小的多普勒频移情况下,本方法仍然有效。3、在时延估计方法研究中,提出了超宽带雷达中基于小波多分辨方法的时延估计算法。