纸质出版:1980
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[1]尹光甲.递归型DMTI级联DFT装置的信噪比损失[J].电子学报,1980(02):30-38.
Yin Guang-jia. Signal-to-noise Ratio Loss in a Recursive DMTI Cascaded with DFT[J]. Acta Electronica Sinica, 1980, (2): 30-38.
本文计算了递归型DMTI(数字动目标显示)级联DFT(离散Fourier变换)装置输出噪声的功率谱分布
并在此基础上分析了由于采用递归型DMTI装置而引起的信噪比损失。计算结果表明
这种损失在无杂波区内很小
且当DMTI所用的单极点网络的级数增加时
这种损失增加得并不明显。同时
这种级联装置输出噪声功率谱是均匀的
适于雷达信号处理系统采用。
This paper presents calculations on spectral distribution of output noise power of a recursive-DMTI cascaded with DFT. The decrease in SNR due to using DMTI also is calculated. It has been proved-that the decrease in SNR is very small in the clutterless region and the increment of the decrease is not evident when the number of single pole networks for DMTI increases. The spectrum of output noise power’ is uniform. This will lead to appropriate implementation in the radar signal processing system.
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