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。
The response speed of the micro deformable mirrors is rapid, which can meet the needs the of the real time modulation of the adaptive optical system.
微变形镜的响应速度快，能够很好地满足自适应光学实时动态校正的要求。
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。
To combine multilevel code (MLC) with differential space-time modulation (DSTM), a new scheme based on an multilevel low-density parity-check (LDPC) code with iterative decoding is proposed.
提出一种新的结合多级编码和差分空时调制的联合编码调制方案。
"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。
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。
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。
In wireless technology, collision occurs when two transmitters transmit at the same time with the same modulation scheme on the same frequency.
在无线技术中，冲突发生在两个发射器在相同的时间、相同的频率发送相同的调制方式。
Orthogonal Multi-Carrier Modulation(OMCM) is adopted to overcome the frequency selectivity and time variation of low-voltage power line channel.
为克服低压电力线信道的频率选择性和时变性，系统采用正交多载波方式传输信息。
The modulation functions depend both on time and frequency.
调制函数是时间和频率的函数。
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。
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。
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。
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。
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。
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。
Starting from the precise pair-wise error probability (PEP), the joint border of group coding signal error probability (SEP) in differential unitary space-time (DUST) modulation is deduced.
从精确成对错误概率(PEP)出发，推导得到了DUST调制群码符号误码率(sep)的联合边界。
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。
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。
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。
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。
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。
By using the time variant modulation ratio method, the harmonics can be eliminated and a sinusoidal and balanced output voltage or input current is obtained.
通过采用时变调制比的方法，可以消除不对称输入电压的影响，从而获得对称正弦输出电压或输入电流。
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；
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。
Then, this dissertation analyses the basic UWB waveform and compares two different data modulation schemes which adopting time-hopping modulation.
接着，在分析了基本的UWB波形的情况下，研究比较了采用跳时调制不同的数据调制方案。
In this article, a control system software is designed using digital PID algorithm, which realize real-time control, dynamic display, data record, parameter modulation and malfunction alert etc.
本文应用数字PID控制算法设计了控制系统的软件，实现了实时控制、动态显示、数据记录、参数调整以及故障报警等控制功能。
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。
At the same time, based on conventional modulation strategies-multi-carrier SPWM applied on multilevel inverter, hybrid modulation strategies are introduced corresponding to hybrid structure.
同时，基于传统的应用于多电平逆变器的多载波spwm调制策略，提出了对应于组合拓扑结构的组合调制策略。
The traditional differential space-time block code (DSTBC) suffers from the signal constellation expansion for QPSK modulation.
传统的差分空时分组编码(DSTBC)在QPSK调制时存在着信号星座扩展。
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