提出了一种基于纹线方向投影信号谱分析的指纹纹线间距估计方法。
An estimation method of fingerprint ridge distance based on ridge orientation projection signal spectrum analysis is proposed to overcome some shortages in the present literatures.
实验结果表明，这种方法不仅可以估计出散射元的平均间距，而且还能估计出散射元的空间分布及概率分布。
The experimental results show that this new method can be used to estimations of spatial distribution and the probability distribution of scatterers .
按照耐奎斯特空间采样定理，阵元间距超过半波长将会带来方位估计的周期性模糊。
Extending the uniform intersensor spacing beyond a half-wavelength would lead to a set of cyclically ambiguous direction-of-arrival estimates, in accordance with the spatial Nyquist sampling theorem.
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