连续可变斜率增量调制的语音编码可以在高误码率的情况下正常工作。
CVSD (Continuous Variable Slope Delta Modulation) voice coding enables.
给出一种以频率调制连续波（FMCW）技术为基础的进行无接触、无累加误差和较大动态范围距离测量方法。
Based on linear frequency modulation continuous wave (FMCW) technique, we have developed a distance measurement method for non contact and non integrating error measurement.
特点是既可用来观察位相物体，也可把干涉条纹调制在位相连续变化的物体上进行测量。
It can be used to observe phase objects, and the interference fringes can be modulated on the continuously changed phase objects for measurement.
连续相位调制的最佳相于解调的误码性能取决于其最小平方欧氏距离。
The error performance of continuous phase modulation (CPM)with optimal coherent detection depends on its minimum squared Euclidean distance(MSED).
高频雷达工作在十分拥挤的短波波段内，可资用的能满足信号调制的连续频带很难获得。
Operating in the heavy congested SW band, it is difficult for HFradars to find continuously useable waveband for signal modulation.
连续相位调制(CPM)的最佳相干解调的译码性能取决于其最小平方欧氏距离。
The error performance of continuous phase modulation (CPM) with optimal coherent detection depends on the minimum squared Euclidean distance (MSED).
通过分析连续可变斜率增量调制(CVSD)的语音编译码工作原理，对CVSD的软件算法进行了详细地剖析。
Through analyzing the speech code-decode principle of the Continuously Variable Slope Delta modulation (CVSD), the CVSD algorithm is discussed in detail.
针对瑞利衰落信道中突发模式的空时网格编码的多电平连续相位调制(STTC - MCPM)系统，提出了一种基于数据辅助的符号定时估计算法。
A data aided symbol timing estimation algorithm was proposed for burst-mode space-time trellis coded multi-level continuous phase modulation (STTC-MCPM) systems in Rayleigh fading channels.
连续相位调制由于其具有恒定包络幅度且对任意的调制信息序列能保持信号的相位连续，从而能够有效的改进信号的频谱特性。
The continuous phase modulation has the constant amplitude and its phase is continuous, which make the signal has a very good power spectrum.
试验结果表明，过调制区连续控制方法简单、高效、控制效果良好。
Test results show that the continuous control method during over-voltage modulation period features simplicity, high efficiency and excellent control effect.
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 phase continue scan is combined with the sinusoidal phase modulation to determine the vibration amplitude of object by time average ESPI.
通过连续激光调制对薄板试样进行局部周期加热，采用红外扫描测温技术记录动态温度分布。
When a thin plate is heated by a beam of modulated continuous laser, a temperature wave generates and propagates along the plate with amplitude decay and phase delay.
对连续相位FSK信号的调制以及FSK信号的实时解调过程进行了研究。
It also study the procedures of modulation of continual-phase FSK signal and real-time de-modulation of FSK signal.
由煤沥青调制的中间相沥青在熔纺过程中纺丝温度较高，不利于稳定连续纺丝。
The mesophase pitch derived from refined coal tar Pith has a higher spinning temperature during melt-spinning, which is unfavorable to stable continuous spinning.
该调制盘的设计具有调制盘的转动中心与光学系统的光轴不同心，连续线性反映目标的偏离量，以及以直角坐标方式给出目标的方位信息等特点。
The design characteristics are that center of the disk is not on optical axis, deviation of target is linear and continuous and azimuth information of target is given in orthogonal coordinate system.
连续相位调制(CPM)以其较高的功率有效性和带宽利用率，在无线通信领域尤其是军事通信领域得到广泛应用。
Continuous Phase Modulation (CPM) is widely used in wireless communications especially in military communications due to its high power and bandwidth efficiency.
线性调频连续波雷达是一种通过对连续波进行频率调制来获得距离与速度信息的雷达体制。
LFMCW (Linear frequency Modulation continuous wave) radar is a radar system which can get the information of range and velocity through modulating the frequency of continuous wave.
本文综述了沥青及其长丝的连续制备工艺和装置，同时还叙述了纺丝用沥青的调制。
The technology and apparatus for continuous preparing of the pitch and continuous filament were described. The method of concocting pitch for spinning was also introduced in the paper.
用连续波和调制脉冲波两种方法研究了由慢电子漂移引起的增长离子声波不稳定性。
The growing ion acoustic wave instability caused by the slow electron drift is studied by both CW and pulse modulated wave methods.
设计出了二次调制系统：采用连续可变斜率增量调制（CV SD）实现模拟话音信号与数字编码的转换，采用二进制相对相移键控（2DPSK）作为数字调制方式。
A twice modulation is designed:, CVSD was adopted to realize conversion between analog and digital voice signals, 2DPSK was used as the digital modulation mode.
而且相位连续的恒定及准恒定包络调制技术，具有很高的带宽和功率利用率，带外辐射较小，因而产生的邻道干扰也较小。
Furthermore, when the phase is continuous, they could provide high power and bandwidth efficiency. Due to the low out-of-band radiation, the interfere between channels is also small.
然而，逆变器输出的PWM(脉冲宽度调制)连续高压脉冲的上升沿很陡、频率很高，导致在脉冲电压下牵引电机绝缘过早失效。
However, Pulse Width Modulation (PWM) which was input from inverter is characterized by steep rising edge and high frequency, resulting in the too early failure of motor insulation.
对色散位移光纤中交叉相位调制效应导致连续波产生频移进行了实验研究，并用光纤光栅滤波实现了波长转换。
The frequency shift induced by cross-phase modulation (XPM) in dispersion-shifted fiber (DSF) is experimentally studied, then wavelength conversion is achieved through filtering by fiber grating.
这种非连续的功率分配方案，在功率分配的同时自适应确定了调制方式。
The discontinuous power allocation scheme determines the allocated power and modulation constellation on each subchannel simultaneously.
该雷达采用调频中断连续波(FMICW)信号，时间同步包括调制脉冲的同步和调制频率的同步。
This radar use FMICW signals, time synchronization consists of pulse synchronization and frequency-modulation synchronization.
调制部分实现CPFSK调制，对传统的DDS技术进行改进，使其数字部分的杂散性能改善且具有较低的相位连续误差。
For the modulation part of the design, traditional DDS technology is improved to implement CPFSK modulation. As a result, the performance of spur and error of digital part are optimized.
脉冲调制器的放电回路采用先进的固态开关技术，以实现频率和脉宽的连续可调。
This kind modulator is characterized by repetitive frequency and easily-adjustable width of the output pulse for utilization in solid state switch.
相位调制器与振幅调制器是连续变量量子密钥分发中不可缺少的光调制器件。
Phase modulator and amplitude modulator are both indispensable optical modulator in quantum cryptographic communication.
设计了一套强度调制型光纤真空度传感系统，并利用真空腔室金属膜片压差的弹性微形变实现了反射式光纤真空度连续检测。
Constructs fiber optical sensing system for vacuum measuring, carries out vacuum measuring using elastic deformation of metal diaphragm for reflex fiber sensor.
设计了一套强度调制型光纤真空度传感系统，并利用真空腔室金属膜片压差的弹性微形变实现了反射式光纤真空度连续检测。
Constructs fiber optical sensing system for vacuum measuring, carries out vacuum measuring using elastic deformation of metal diaphragm for reflex fiber sensor.
应用推荐