• The radiation-driven implosion asymmetry can be obviously improved using time-modulation of radiation temperature source .

    辐射驱动内爆的不对称性可以利用辐射温度源的时间调制得到明显的改善。

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  • "Modulation domain" is a plane domain which is consisted of frequency and time signal axes.

    “调制域”是由信号的频率和时间两个轴构成的平面域。

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  • Modulation Domain and Pulse Analyzer(MDPA) analyzes signal using a plane domain which is consisted of frequency and time.

    调制域及脉冲分析仪利用时间和频率构成的平面域对信号进行分析。

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  • It also includes, Hall element inputs, a sequencer for commutation control, fixed off time pulse width modulation (PWM) current control and locked rotor protection.

    它还包括霍尔元件输入、整流控制定序器、固定停机时间脉冲宽度调制(PWM)电流控制以及锁定转子保护。

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  • The modulation functions depend both on time and frequency.

    调制函数是时间和频率的函数。

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  • As it is to OFDM, WMCM has lower time complexity in baseband modulation, good PAPR distribution, and takes on more robust to pulse interference.

    与OFDM相比较,WMCM的基带调制时间复杂度降低,峰均功率比更优,对抗脉冲干扰的能力更强。

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  • In this paper, the evolutionary random excitations acting on structures are assumed to be non uniformly modulated, i. e. the modulation functions depend both on time and frequency.

    本文假定结构受到非均匀调制的演变随机激励,亦即其调制函数是时间与频率二者的函数。

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  • In this paper, the phase continue scan is combined with the sinusoidal phase modulation to determine the vibration amplitude of object by time average ESPI.

    利用光学连续相位扫描和正弦相位调制相结合,提出一种ESPI时间平均测振的定量分析方法。

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  • It is made clear through the theoretical analysis that the frequency shift is dependent on the modulation frequency, thermal time constant, bias current of the laser diode and so on.

    理论分析表明频移幅度与调制频率、时间常数和半导体激光器的偏置电流等物理量有关。

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  • In WCDMA system, downlink base band modulation involves a lot of channels and complex functions, resulting in prolonged time and higher costs for test and verification.

    WCDMA中下行链路基带调制信道多,功能复杂,对其测试和验证所花费的时间和费用也随之提高。

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  • Real time tissue temperature control algorithm, ultrasound applicator water temperature control and pulse width modulation (PWM) signal generation are described.

    阐述了组织温度控制算法、治疗头水温控制以及脉宽调制信号产生三个系统核心子模块的设计。

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  • Moreover, the optical phase modulation behavior model of micro deformable mirror arrays is established for the first time.

    首次建立了微变形镜阵列的光相位调制系统级模型。

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  • The laser pulse modulation system has been used in a picosecond time-correlated single photon counting spectrometer with perfect effect.

    该激光脉冲调制系统已经应用在皮秒时间相关单光子计数光谱仪系统中,取得了比较理想的效果。

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  • The algorithm clearly displays the frequency modulation law of the nonlinear frequency modulation chirp signals at the same time.

    同时清楚地展示了非线性调频信号的频率调制规律。

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  • This paper indicates the normal testing methods of time domain frequency stability, and focal points out the testing methods of time domain frequency stability with modulation domain analysis.

    介绍了时域频率稳定性常用的测量方法,并重点介绍了利用调制域分析仪实现时域频率稳定性的测量方法。

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  • So, the modulation of irregular pulse repetition interval may be employed in FCP that the randomization of signal modulation would be obtained in both time and frequency domains.

    因此,若将重复周期参差调制方式融合到频率编码信号中,可使信号具备时-频调制双重随机性。

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  • Modulation Domain and Pulse Analyzer (MDPA) is a powerful instrument for modulation domain analysis, also it is a useful tool for time interval measurement.

    调制域与脉冲分析仪既是调制域分析的利器,也是脉冲分析的有效工具。

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  • Digital modulation technology is the foundation of BPL time code broadcast and independent time service.

    数字调制技术是BPL时码发播和自主授时的基础。

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  • The time relationships between GRI pulse sequences and reference pulses, as well as between modulation codes and Loran-C pulse groups are analyzed.

    分析了GRI脉冲序列与参考脉冲,以及调制码组与罗兰C脉冲组的时间关系。

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  • In order to enhance the anti-interception performance of modulation-hopping technology, a method to design wide-gap chaos modulation hopping pattern based on time of day(TOD) is proposed.

    为增强调制跳变技术的抗截获性能,提出一种基于时间信息(TOD)的宽间隔混沌调制跳变图案设计方法。

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  • It represents input waveforms as RF carriers with modulation envelopes that are described in the time domain.

    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。

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  • At the same time, it introduces the definition of spatial distance, and establishes a multi-point to one point optimal signal detection theory according to the relationship of modulation mapping.

    同时引入空间距离的概念,根据调制映射关系,建立起多对一的最优信号检测理论。

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  • The UWB impulse radio technology is a new kind of communication method these years, in which the swash impulse and time-hopping code modulation techniques are mainly applied.

    超宽带冲激无线电技术是近年来新兴的通信技术,其主要核心技术是采用了冲激脉冲技术和跳时码调制。

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  • Aimed at dead time effect of voltage-fed space vector pulse width modulation (SVPWM) inverter, a novel compensation method detecting current polarities from the current vector was presented.

    针对电压源型空间矢量脉宽调制逆变器的死区效应,提出了一种根据电流矢量判断电流极性的死区补偿方法。

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  • When the Angle modulation signals made up of the message model have passed through a randomly time-varying channel, a complex nonlinear estimation model is formed.

    当此消息模型构成的角调信号通过随机时变信道后,形成复杂的非线性估计模型。

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  • Aiming at the spectrum spread problem of traditional digital modulation signals, a time-phase modulation (TPM) method with abrupt phase change characteristic is proposed.

    针对传统数字调制信号频谱扩展问题,提出具有相位突变特性的时相调制(TPM)方式。

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  • The performance of time hopping pulse position modulation (TH-PPM) UWB system using this wavelet monocycle was studied under additive white Gaussian noise (AWGN) channel.

    同时还研究了在加性高斯白噪声(AWGN)信道中,跳时扩频脉位调制(TH PPM)的UWB系统中使用该窄脉冲的系统性能。

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  • Relying on basis expansion model, this paper presents a differential space-time modulation method for flat rapidly fading channels.

    利用基扩展模型,针对平坦快衰落信道提出了差分空时调制方法。

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  • The bulk potential modulator can realize real-time modulation to parameters of the target MOS device, thus greatly weakening the influence of technological deviation.

    体电位调制器能够实现对目标MOS器件参数的实时调制,极大地减弱了工艺偏差的影响。

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  • Space-time trellis code combining space diversity with code and modulation, can improve efficiency and reliability of communication system in wireless channel efficiently.

    发射端分集、编码和调制结合空时格码,可以有效地提高信号在无线衰落信道中传输的有效性和可靠性;

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