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。
The results show that the phase error of the vector measurement is zero, and amplitude errors can be eliminated, and high measurement accuracy can be obtained by using low bit D/A converter.
结果表明,相位测量的理论误差为零,幅度测量的理论误差可用修正系数消除,且使用较低位数的D A转换器,可得到高准确度的结果。
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 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。
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。
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。
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 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。
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;
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。
The analytical expressions of the error spectra caused by random errors in the measurement of amplitude and phase of the near field in planar near field measurements are presented.
导出了平面近场测量中近场幅相随机误差所引起的误差谱的解析表达式。
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 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。
Amplitude based methods or phase based methods are usually used in multi-beam bathymetry system and chosen according to some rule, which may bring about unpredictable errors if wrong choose occurs.
多波束测深系统中经常使用幅度法或相位法来进行海底检测,并且按某种准则来选择,但如果选择错误,可能会带来不可预测的误差。
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。
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。
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