modulation distortion
英 [ˌmɒdjʊˈleɪʃən dɪˈstɔːʃn]
美 [ˌmɑdʒəˈleɪʃən dɪˈstɔːrʃn]
调制失真
双语例句
- Compared with former amplitude demodulation, digital modulation RIP can obtain more accurate measurements of respiration and reduce the signal interference and distortion.
相对于模拟幅度检测，该设计具有测量精度高，抗干扰能力强等优点。 - Then, the modulation contrast was selected to describe the intensity of grayscale distortion, and the factors of the contrast change were analyzed.
然后，选取调制对比度描述灰度畸变的剧烈程度，分析了引起对比度变化的因素。 - Two different modulation methods are used to modulate the inverter and their advantages and disadvantages are compared, including total harmonic distortion ( THD) of voltage and current.
然后使用不同的调制方法对逆变器进行调制，并比较两种方法的优缺点，包括输出电压以及电流的总的谐波失真比率。 - This total modulation index must not exceed unity, or distortion will result.
这总的调制度不得超过一，否则就会产生失真。 - Amplification of linear modulation schemes,( which exhibit fluctuating envelopes), by high power amplifiers invariably leads to the generation of distortion and intermodulation products.
用高功率放大器放大线性调制信号（络波动变化），必然会产生失真和互调成分。 - The wavelength conversion characteristics under the small signal modulation and the converted waveform distortion under the large signal modulation are discussed respectively.
分别讨论了小信号下波长转换特性和大信号下转换波形的畸变情况。 - The effects of the pulse modulation waveform distortion on the transmitter performance, that is, the effects of the pulse top fluctuation, linear droop, leading anti trailing edges on the transmitter RF pulse quality, have been analysed in detail.
本文详细分析了脉冲调制波形畸变对雷达发射机性能的影响，即脉冲顶部波动、线性降落、脉冲前、后沿对发射机射频脉冲质量的影响。 - The control circuit used very efficient PID modulation and anticipatory control so the power amplifier had little distortion and fast dynamic response.
它采用了电压闭环负反馈以及有效的PID调节环节和相应的超前校正环节，能保证很小的失真率和快速的动态响应能力。 - The Effects of the Pulse Modulation Shape Distortion and the Power Supply Ripple on the Radar Transmitter Performance
脉冲调制波形畸变和电源纹波对雷达发射机质量的影响 - The acoustooptical intensity modulation has been studied, and wave distortion in the modulation has been analyzed in this paper.
本文研究了声光强度调制并且分析了强度调制中的波形失真。 - For LFM signal, we demonstrate the method of employing Hamming weighting, spectrum correcting and phase modulation distortion.
对线性调频信号的旁瓣抑制介绍了经典海明窗加权处理方法、频谱修正以及相位预矫正几种方法。 - Acoustooptical Modulation and Its Wave Distortion Analysis The fluctuation of profile is less than 1%.
声光强度调制和失真波形分析波形起伏小于1%。 - In the multi-carrier modulation of DMT communication system, both time domain and frequency domain equalizers are used to compensate for the magnitude and phase distortion within each subchannel.
在多载波DMT通信系统中，同时采用时域均衡器和频域均衡器来补偿各个子信道的幅度和相位失真。 - The general methods decreasing the modulation nonlinear distortion are given.
讨论了减小调制非线性失真的一般方法。 - A art of curve near inflection point on modulation curve can be considered as straight line, so it can be used to modulate laser beam to reduce distortion.
调制曲线上有一个拐点，在拐点附近的一段曲线可看成直线，利用这段曲线进行调制可减少失真。 - As one of inverters, Sinusoidal Pulse Width Modulation ( SPWM) inverters can achieve low total harmonic distortion ( THD) output wave.
正弦脉宽调制（SPWM）逆变器作为逆变器的一种，可输出谐波含量小的正弦波形。 - By optimizing the mapping scheme between source and channel modulation symbols in a joint source-channel coding/ modulation system, under the distortion measurement of end-to-end mean square error, the proposed scheme has better performance than that of the traditional tandem coding system.
在信源-信道联合编码/调制中，通过优化信源和信道调制符号间的映射关系，在端到端均方误差的失真度量标准下，可以得到比传统级联编码系统更好的性能。 - The phase intensity modulation transformation equation for single Zernike mode and that for multiple Zernike modes under the hypothesis of little phase distortion of wavefront are derived based on Kirchhoff diffraction theory.
根据基尔霍夫衍射定理，导出了单一模式以及小畸变近似条件下多个模式的相位－光强转换关系的方程。 - Multi-carrier modulation ( MCM) is a preferable physical layer technology for BWS, since it can efficiently mitigate the frequency-dependent distortion across a wide frequency band and simplify the equalization in a multipath fading environment.
多载波调制（MCM）技术是适合BWS的物理层调制技术，可以很好的解决宽带无线情况下出现的频率选择性衰落现象及简化多径衰落信道环境的均衡问题。 - Hen transmitting amplitUde shift keying modulation singal and take LC Parallel resonance circuit as aerial, rectangle pulse may have appeared obvious waveform distortion.
用LC并联谐振回路作为天线发送振幅键控调制信号时，会出现较大的波形失真。 - , weighted signal modulation technique in signal distortion techniques are analyzed. With simulation, the effect on PAPR reduction of this technique is testified.
然后，对信号畸变技术中的加权信号调制技术进行深入的研究和分析，通过仿真证明该技术可以有效地降低PAPR。 - Dither modulation with distortion compensation is a quantization watermarking algorithm that can achieve high capacity, and it uses the quantization error as the compensation to improve the performances of dither modulation, while the compensation factor is one of the key factors that affect its performances.
带失真补偿的抖动调制水印算法是一种可以获得大容量的量化水印算法，它以量化失真作为补偿来提高抖动调制水印算法的性能，而其中补偿因子是影响该算法性能的关键因素之一。 - Study on Inter modulation Distortion in Microwave Active Filters
微波有源滤波器交调失真的研究 - In high noise circumstance, modulation generalized least squares parameter estimation appear distortion, so algorithm of time-window wavelet de-noise was proposed to reduce noise of the high data on line, then estimating parameters of model by de-noise data.
针对高噪声情况下调制广义最小二乘参数估计出现失真的情况，提出时窗小波降噪算法对带高噪声的数据进行在线降噪，然后利用降噪数据估计模型参数。 - The mapping between source symbols and modulation signals is optimized through the switch search algorithm to decrease the mean square distortion of the false source symbols induced by channel errors.
通过置换搜索算法优化信源符号和调制星座点间的映射关系以减小信道错误造成的信源均方误差失真。 - Pulse Width Modulation ( PWM) method makes the rectifier have the advantages of sinusoidal input current, unity power factor and low total harmonic distortion ( THD).
脉宽调制（PWM）技术的引入使整流器输入电流正弦化，可运行于单位功率因数，且谐波含量低。 - However, in order to increase power efficiency, PAs are often driven into the saturation region, where nonlinear distortion is severe. Shortwave power amplifiers 'nonlinearity produces harmonic distortion, cross modulation distortion.
而为了提高功放效率，一般让短波功率放大器工作在接近饱和点，而此时功放非线性现象变得十分严重，产生谐波失真、互调交调失真。 - Using PSpice software analyses and simulates error amplifier, carrier modulation processing, summation processing, plastic processing and other hardware circuitry to ensure that the signal without distortion.
使用PSpice软件分析仿真了差放、载波调制、求和、滤波、整形等硬件电路，以确保信号基本不会失真。 - The output variation of the power shows it really does work for some following advantages: wide modulation range, quick response, almost no wave distortion, constant output with non-linear load.
电源输出结果显示，研制成的电源具有调节范围大，动态响应速度快，输出波形失真小，带非线性负载能力强等诸多优点。