在设计中,以TL 494作为PWM产生电路输出控制信号,控制开关管的导通状况,在半桥反激式输出的基础上实现了电源的多路输出。
In the design, to produce circuit TL494 as a PWM output control signals, control of the on-switch situation, the half-bridge flyback output on the basis of the power of multi-output.
在一个例子中,控制器36考虑与接收的信号关联的导频信道,用于确定选择两个接收机哪一个来处理接收的信号。
In one example, the controller 36 considers a pilot channel associated with the received signal for determining which of the two receivers to select for processing the received signal.
利用导频符号进行信道估计,并作为空间波束成型器的参考信号。
The pilot symbols were used to estimate channel and act as reference signal of beam-former.
在一个例子中,在实际接收所接收的信号之前分析导频信道。
In one example, a pilot channel is analyzed prior to actual receipt of the received signal.
介绍了由单片机控制的可控硅电路,该电路运用外部中断获得同步信号,用定时器做导通角控制,并给出实用程。
The controllable silicon circuit controlled by monolithic microcomputer is introduced, which adopts external interrupt to obtain sync signals and controls conducting angel with a timer.
利用导频符号进行权向量更新算法,并作为空间波束成型器的参考信号。
The pilot symbols were used to estimate channel and acted as reference signal of beam-former.
纯导频方式是采用专门的信道发生器模拟出纯粹的导频信号。
The way of pure pilot-frequency is one that adopts dedicated-channel generator to simulate pure pilot signal.
这种估计方法不需要利用任何训练序列或导频信号,进一步提高了系统频带利用率,降低了计算复杂度。
This estimation algorithm doesn't need any training sequences or pilot signal, therefore improves band efficiency and lower computational complexity.
同时,均衡器34B正使用例如来自下一调度用户的导频训练以用于下一调度用户的信号。
At the same time, the equalizer 34b is training to the next scheduled user's signal using, for example, the pilot from the next scheduled user.
文中研究了部分匹配滤波器在高动态卫导信号快速码捕获中的应用。
This paper explores the application of PMF in high-dynamic satellite navigation signal based on fast code acquisition.
利用电压空间矢量脉宽调制(SVPWM)信号变换控制功率变换器各开关器件的导通占空比,实现异步电动机的速度调节。
Using space vector pulse-width modulation (SVPWM) signal transformation method, speed regulation of induction motor is implemented by controlling the duty ratio of every converter switch.
从硬件角度介绍三导心电信号的采集、放大、滤波、模数转换和USB传输的电路原理与构成。
Such aspects get involved in as the acquisition, amplification, filter and AD conversion as well as the principle and structure of USB transmission circuit.
方案利用时频联合估计来得到可靠的信号检测,并从导频符号估计时间和频率偏移。
Based on joint time and frequency offset estimation, a reliable signal detection scheme is obtained by modulated pilot symbols using an m-sequence.
该电路不仅具有心电信号的采集放大和滤波功能,同时还具有导联脱落自动检测功能。
The circuit not only amplifiers the ECG signal and filter, but also automatically detects lead-fall.
在数字基带处理时,从正常载频信道中提取出导频信号,用于伪导频的发射。
When processing digital base-band, the signal of pilot-frequency was taken out from normal carrier channel and it would be used for transmitting pseudo pilot-frequency.
介绍了一种心室晚电位和常规12导联心电信号综合采集电路。
This paper introduces a data acquisition circuit that is able to acquire ventricular late potentials and standard 12-lead electrocardiogram signals.
这种方法可以更好地跟踪信道变化,显著地消除接收到的导频信号中的加性噪声,提高信道估计精度。
Such method could better track channel change and eliminate the noise remarkably in the received pilot signal, and the precision of channel estimation had been improved.
被训练成通过发出类似于电话铃或门铃声等信号,给聋子或听力受损者提供帮助的导聋犬。
Hearing dog: a dog trained to assist a deaf or hearing-impaired person by signaling the occurrence of certain sounds, such as a ringing telephone or doorbell.
与此同时,结合数字信号处理知识,分别用谐波修正和时变数字滤波器的方法,完成基于骨导信号的语音重构。
At the same time, based on the knowledge of digital signal processing, reconstruction by harmonic correction and time variant digital filter was proposed.
盲估计不需要导频符号,直接利用接收的信号对信道进行估计。
Blind estimation dose not need the pilots and USES the received signal to estimate the channel state information.
本文在对脑电信号进行特征分析的基础上,设计并实现了18导动态脑电图记录盒。
Based on analyzing the character of EEG signal, we design the AEEG recorder with 18 channels.
在车站信号工程的施工中,开通前都要进行车站联锁导通试验,以验证信号设备联锁的正确性。
In construction of signalling system in station, the station conduction test needs to be done to verify the correction of signalling equipment interlocking.
采用基于二阶统计量的盲源分离算法对多导表面肌电信号进行处理,实现噪声的分离和表面肌电信号的初步分解。
Some methods of SEMG signal pretreatment based on blind source separation using second order statistics were proposed for noise separation and the elementary decomposition of multi-channel SEMG.
应用该同步控制方案,可以在驱动系统结构和参数未知及不要求混沌参考信号连续可导的前提下,实现构造响应系统的输出渐近同步于任意标量混沌信号。
The output of the response system is controlled to asymptotically synchronize with any scalar chaotic signal without continuous derivatives of the driver system with unknown structure and parameters.
由于公共导频信道无功率控制,有可能在接收端接收到的公共导频信号的功率很低,使得信道估计的误差变大。
Because there is no power control in CPICH, the received common pilot signal power is possibly very low if the mobile is far from the base station, and this time the channel estimates is inaccurate.
以多导生理信号分析系统记录胃慢波,以频谱分析法分析不同5 - HT受体拮抗剂对胃慢波的影响。
Gastric slow waves were recorded by multi-channel physiological signal analytical system. Effects of antagonists of various 5-ht receptors on gastric slow waves were analyzed by spectral analysis.
提出了一种面向直接序列扩频(DS-CDMA)通信系统的基于导频信号的自适应信道估计方法。
The estimation scheme for DS-CDMA systems includes a computationally efficient and easily implemented pilot filter on CDMA forward channel.
提示面神经损伤后面神经核运动神经元内由信号转导子和转录激活子3介导的细胞因子的信号转导作用增加。
Action of signal transduction of mediated cytokine indicated by STAT3 raises in motoneurons of facial nerve nucleus after facial nerve injury.
首先介绍了基于导频信号的辅助信道估计过程,并据此给出了信道模型。
The auxiliary channel estimating process based on pilot signal is introduced, and a model for the auxiliary channel is presented according to the process.
利用有限的导频信号进行信道延迟估计从而获得准确的符号同步。
Channel delay estimation via pilot sub-carriers is used to provide accurate frame synchronization in multipath channels.
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