... frequency spectrum alias 频谱混叠 frequency alias capture 频率占据 ; 频率捕捉 frequency alias band 频率带 ; 波段 ...
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... aliasing error 重叠误差 aliasing noise 折叠噪声 spectral aliasing 频谱混叠 ...
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频谱混叠的低分辨率 low resolution
The DCDFS algorithm introduces a factor dependent Doppler centroid to alleviate the impact of the squint angle when the nonlinearity and the RCM are compensated at the same time. At the position,the range frequency aliasing is removed.
在同时完成扫频非线性校正与距离徙动校正的过程中引入了一个与多普勒中心有关的因子,减小了斜视角的影响,从而降低了处理过程中引入信号的带宽,消除了距离向的频谱混叠。
参考来源 - 调频连续波SAR实时成像算法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
采用模拟低通滤波器降低频谱混叠，提高谐波检测的实时性。
Simulating low pass filter is adopted to reduce the spectrum alias and improve the speed of harmonic measurement.
方法：用数学方法求解对应于低分辨率遥感图像的统一频谱混叠。
Methods: the mathematic method is used to find a uniform expression for frequency aliasing matrix of different resolution images.
分析了CCD的非线性产生频谱混叠问题，提出了减小频谱混叠的方法。
The overlapping spectrum caused by the nonlinearity of CCD was analyzed, and the way of reducing overlapping spectrum was presented.
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