The amplitude errors and the phase errors are considered, respectively.
分别考虑了振幅误差和相位误差两种情形。
Then a compensation method directly extracting phase errors from raw data is discussed.
然后讨论的是直接从原始数据中提取误差进行补偿的方法。
This paper analyzes the output SINR of adaptive array antenna in the presence of amplitude and phase errors.
以自适应阵列的输出信干噪比(SINR)为对象,研究了通道幅相不一致性对它的影响。
The effects of undulator phase errors on the Free Electron Laser small signal gain is analyzed and discussed.
对波荡器位相误差对自由电子激光小信号增益的影响进行了分析讨论。
This paper analyzes the effect of amplitude phase errors on sidelobe level and beam direction in digital beam forming system.
针对旁瓣电平、波束指向等指标分析了幅相误差对数字波束形成系统的影响。
In this paper, a new method of phase errors estimation based on higher order statistics is proposed for SAR imagery autofocus.
提出了一种基于高阶统计量分析的相位误差估计算法,用于SAR图像自聚焦。
Methods The phase sensitive method was used to remove the phase errors and restore the polarity of theinversionrecovery data .
方法采用相位敏感方法消除相位误差,保存反转恢复序列中磁化矢量的极性。
Then a linear programming method is proposed to construct the FIR filter correcting the amplitude and phase errors simultaneously.
然后给出了求解逼近给定幅相频率响应的FIR实系数滤波器的线性规划方法;
Based on the analysis of the characteristics and main phase errors of this mode, the compensating methods for these errors are given.
分析了该工作方式的特点及主要相位误差,给出了相应的误差补偿方法。
One of the jammer structures which can realize the algorithm is given and the method for reducing nonlinear phase errors is presented.
给出了一种实现此算法的干扰机结构,并提出了减小非线性相位误差的方法。
With the help of computer simulation, the effects of random phase errors on the fiber Bragg gratings with different chirps are compared.
通过数值模拟,得到了随机相位误差对不同啁啾量的线性啁啾光纤光栅的影响。
More, based on the assumption that image cancroids is changeless, we resolve the image azimuth shift problem caused by linear phase errors.
并利用图像质心不变的假设,解决了线性相位引起的图像方位位置偏移问题。
And the measured array pattern is given. Finally, the effects of the array tolerance, mismatch and phase errors on the array is also analyzed.
最后,对共形天线阵进行了误差分析,分析了阵元位置公差、阵元失配和馈电相位误差对天线阵辐射特性的影响。
The combined effects of mutual coupling and amplitude-phase errors have negative impact on the direction-finding performance of the MUSIC algorithm.
针对幅相误差是制约声纳基阵性能的重要因素,建立存在幅相误差的均匀线列阵模型,进而提出统计计算与计算机仿真相结合的方法。
The results show that the maximum entropy method is more sensitive to the gain and phase errors than the maximum likelihood method (MLM) and MUSIC method.
结果表明最大熵算法较最大似然估计(MLM)算法和MUSIC算法对幅相误差的影响更加敏感。
The channel gain and phase errors are inevitable in radar systems and the result in performance degrading of space-time adaptive processing (STAP) algorithm.
雷达系统不可避免地存在通道幅相误差,导致空时自适应处理算法的性能下降。
Phase errors is introduced in echo demodulation process because of the frequency synchronization error, and then, the final focus result will be deteriorated.
在接收端解调过程中,该频率同步误差会引入一定的相位误差,进而影响下一步的成像处理。
It studies the problem in the presence of array gain and phase errors in the collocated MIMO radar and a method that estimates the gain and phase error is given.
针对相关MIMO雷达中存在的阵列幅相误差问题进行了研究,提出了一种MIMO雷达幅相误差估计方法。
A phase error model, in which the time synchronization error, frequency synchronization error and motion error are considered, reveals the sources of phase errors.
同步以及运动误差会引入相位误差,本文中提出了相位误差模型。
Signal subspace-based high resolution algorithms are usually sensitive to various uncertainties such as locations errors, amplitude and phase errors in the receivers etc.
基于信号子空间的超分辨方法一般对接收器阵列误差非常敏感。
The system distortion is inevitable in wide-band analog quadrature receiver because of the existing of amplitude and phase errors, the performance of receiver become worse.
由模拟器件构成的宽带正交解调接收机会由于正交通道的幅相不一致性造成整个系统的失真,进而影响整个接收系统的性能。
A novel vector sensors array calibration method based on subspace approaches in the presence of phase errors on high-resolution estimation methods is presented in this paper.
当阵列模型存在误差时,子空间类方法的高分辨性能会显著下降,因此必须进行有效的校正。
The system uses time-frequency tracking loops to extract phase errors from data subcarriers with frequency interpolation to compensate for the estimated carrier frequency offsets.
该方法使用了时频同步跟踪环路,从数据子载波提取相位误差,并利用频域插值补偿多个用户的估计频偏。
The errors are classified according to their frequency. The amplitude and phase errors of the LFM signal generators using quadrature modulation technology are mapped into baseband.
提出了一种将正交调制LFM信号产生系统的幅相误差映射到基带后,在数字域利用复系数FIR滤波器进行校正的方案。
Chapter 2 introduces the sources and influences on images of all kinds of phase errors, analyzes existing some autofocusing algorithms and lays stress on considerations for application.
论文第二章详细分析了各种相位误差的来源及它们对图像产生的影响,对几种现有的自聚焦算法进行了描述,指出实际应用过程中应该注意的问题。
RD algorithm based on minimum entropy criteria carries out the correction phase errors caused by high squint Angle via searching error coefficients for improving the imaging focus effect.
基于最小熵准则的自聚焦rd算法在一般rd算法的基础上引入最小熵准则来补偿由于大斜视角引起的相位误差,改善图像聚焦效果。
The space equalization method (SEM) is put forward in this paper to eliminate the amplitude and phase errors among antennas caused by mechanical manufacturing errors and array edge effects.
提出空间均衡方法用来消除由天线的机械加工误差和阵面的边缘绕射引起阵元间的幅相误差。
Amplitude gain and phase error would lead to performance degradation of high-resolution parameter estimation algorithms; especially the phase errors will cause deviation of parameter estimation.
幅度增益和相位误差使得高分辨率的参数估计算法的性能下降,特别是相位的误差,将会引起参数估计的偏离。
The relationship between mutual impedance errors and the amplitude and phase errors of channels is derived, by which the relationship between mutual impedance error and the sidelobe level is given.
推导出了互阻抗误差与通道幅相误差的关系;进而得到了互阻抗误差与副瓣电平的关系。
This paper mainly describes the amplitude and phase errors caused by zero-order holder and the error caused by finite word length of D/A, and computer simulation test of D/A error is also introuced.
针对零阶保持器引起的幅度误差和相位误差,以及D/A转换器有限字长引起的误差进行了较为详细的分析,并进行了D/A误差仿真试验。
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