nonlinear distortion
[电子] 非线性失真
2026-03-21 22:31 浏览次数 27
[电子] 非线性失真
nonlinear thermal distortion非线性热畸变
Nonlinear thermal distortion effects非线性热畸变
nonlinear geometric distortion非线性几何畸变
nonlinear r distortion非线性失真
nonlinear distortion suppressing noise非线性失真
nonlinear harmonic distortion非线性谐波失真系数
nonlinear distortion products非线性失真产物
line time nonlinear distortion[电子]
one disadvantage of mc-cdma is the high peak-to-average power ratio (papr) that results in nonlinear distortion at a high power amplifier (hpa) and the degradation of the bit error rate (ber).
mccdma的一个缺点是峰值平均功率比(papr)高,这将会导致使用高功率放大器时的非线性失真及误码率性能的降低。
adaptive baseband predistortion is an effective technique for compensating nonlinear distortion introduced by high power amplifiers.
自适应基带预失真技术是用于补偿高功率放大器非线性失真的一种有效技术。
the relationship between nonlinear distortion and maximum output level of amplifier in catv systems is analysed in this paper.
该文分析了catv系统中放大器的非线性失真与最大输出电平的关系。
this paper fcutativcly discusses the nonlinear distortion caused by blockage-leakage in the photon-counting tcchnigue and proposes a set of new method to decrease the defects.
本文对光子计数探测中堵塞漏计引起的非线性失真现象作了一些新的探讨相分析,提出了一套新的减少漏计的论证。
solving of nonlinear distortion and calibration of digital camera「s interior and external parameters are respectively modeled and solved.
在这一方案中建立二维图像中非线性畸变的处理、数码相机的内部和外部参数的标定各自的独立模型,分别求解。
a nonlinear distortion is compensated according to the characteristic relating to the characteristic of an object to be measured.
根据与被测量物特性关联的特性来补偿非线性失真。
nonlinear distortion caused by diffraction in the lithography process has severely affected the quality of surface profile, which is the main reason for pattern distortion in lithography.
光刻过程中由于光的衍射效应产生的非线性畸变对光刻面形质量具有严重影响,是造成光刻微结构图形失真的主要原因之一。
the ofdm system has a major disadvantage that high peak to average power ratio (papr) can cause nonlinear distortion in the high power amplifier (hpa).
ofdm系统的一个主要缺陷就是峰平比过高引起的高功率放大器(hpa)的非线性失真。
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。
the post nonlinear mixture is formed by a component wise nonlinear distortion after the linear mixture.
后非线性混合信号是由线性混合的每一路信号分别经过一个非线性畸变产生的。
nonlinear distortion of images by digital camera is made of combined errors of lens in the camera. it is confirmed through theoretic analysis and experimental proof.
通过理论分析和实验验证,在数码相机成像中,二维图像中的非线性畸变主要来自于相机镜头中透镜的组合误差。
a novel approach of nonlinear distortion compensation technique based on rbf network is proposed here.
提出了一种基于rbf神经网络的非线性失真补偿技术。
the true value diagrams are used to do the camera calibration. this method takes nonlinear distortion of the lens.
采用真值表法进行相机标定,将镜头畸变非线性微分化,有效克服了镜头畸变造成的影响。
so tranditional memoryless predistortion can not compensate memory nonlinear distortion of pa.
因此,无记忆预失真器不能校正放大器的记忆非线性失真。
linearizeation technology is now widely used in order to reduce the power amplifier nonlinear distortion without loss of efficiency.
为了在不损失效率的条件下降低功率放大器的非线性失真现在广泛采用了线性化技术。
furthermore, the time history and spectrum of the average flow velocity through an orifice are computed, from which the nonlinear distortion of flow velocity is analyzed.
进而计算了圆孔中的声质点速度,并分析了孔中速度的畸变情况、最后给出了圆孔的非线性声阻和声抗的理论值。
but the ofdm signal has a large papr, which results in the significant nonlinear distortion when it passes through a hpa (high power amplifier), thereby the performances of the system descend.
但是ofdm信号有高的峰值平均功率比,当它通过高功率放大器时会导致非线性失真,从而使得系统的性能下降。
the method uses the model of radial nonlinear distortion with the symmetry of optical axis to obtain correction coefficients of the optical lens, and then corrects the distortion image.
该方法利用与光轴对称的径向畸变数学模型求出光学镜头的校正系数,对畸变图像进行校正。
the process of nonlinear distortion correction of orthogonal pattern group in e-beam scanning is introduced.
论述了电子束扫描正交图形簇产生畸变的非线性校正过程。
measurement method of nonlinear distortion is also discussed. instruments made in china were used and background noise in the selective frequency meter was eliminated in the measurements.
并介绍了采用国产仪器,去掉选频表本底噪声的方法来测量放大器的非线性失真。
however, the mc-cdma system inherits the problem on the higher peak-average power ratio (papr) in the ofdm systems, which will result in the nonlinear distortion in a high power amplifier (hpa).
但mc-cdma系统也继承了ofdm信号具有高峰平功率比(papr)的问题,这会引起高功率放大器(hpa)出现非线性失真。
the c/n and nonlinear distortion are provided to be contented with the two-output optical distributor by theory and practice.
理论与实践表明,这种光分路器完全可以满足系统载噪比与非线性失真质量指标的要求。
focusing on the nonlinear distortion caused by nonlinear amplifier in ofdm system, an adaptive pre-distortion technique based on look up table(lut) was used to rectify it.
针对ofdm系统中非线性放大器对信号造成的非线性失真影响,采用基于查询表的自适应预失真技术对其进行矫正。
the deteriorated signal to noise formula caused by nonlinear distortion products under qpsk modulation is derived and some amplifier examples are analysed.
导出qpsk调制下非线性失真产物引起的信噪比恶化公式,并对具体放大器例子进行了计算分析。
aseismatic performance of frame structure intensively depends on it」s energy absorbency and nonlinear distortion capability, and realization of these capability is based on the damage of structures.
结构抗震性能的优劣,强烈地依赖其能量吸收能力和弹塑性变形能力,而这些能力的实现是以结构的损伤为代价的。
further more, matlab simulation results prove the proposed method not only revises nonlinear distortion as well as secant but also has less convergency time and less runtime.
仿真结果也证明了,基于离散牛顿法的自适应方法能够达到和割线法相同的调节作用,使预失真器能够很好的校正非线性失真。