脊波

The dual wavelength operation of a new type InGaAs-GaAs ridge waveguide distributed Bragg reflector lasers is realized.

对一种新型InGaAs-GaAS脊波导分布式Bragg反射半导体激光器双模运行特性进行了研究。

One kind of Modified Orthonormal Finite Ridgelet Transform was brought forward.

提出了一种改进型正交有限脊波分析的图像去噪算法。

The frequency and the circuit parameters of a rectangular reentrance resonant cavity have been studied by the unperturbed theory and the principle of the equivalent circuit of a ridged waveguide, respectively.

分别采用导体微扰原理和脊波导的等效电路参数，研究了矩形重入谐振腔的频率和电路参数。

To validate this method, a ridge waveguide output circuit was designed and tested.

针对该型速调管的要求，设计了完整的脊波导输出组件并进行验证。

Because finite ridgelet transform brings"wrap-around"effect, wiener filter is used for reducing its influence in the paper and a better result is gotten.But it is one of author's next work how more availably to reduce the"wrap-around"effect.

由于有限脊波变换存在"折叠"效应这一明显缺陷，本文采取了维纳滤波的办法取得了一定的效果，但是如何更加有效地消除它的影响是笔者下一步要做的工作之一。

The problems of redundant dictionary construction in overcomplete sparse representation are studied. A method of multiscale Ridgelet dictionary construction is proposed.

2对超完备图像稀疏表示中冗余字典的构造问题进行研究，提出了冗余多尺度脊波字典的构造方法。

The simulation analysis has indicated that the bandwidth of ridged waveguide slot array has been greatly improved, and it is consistent with the result of thoery.

仿真分析表明脊波导裂缝阵列的带宽有较大的改善，这与理论分析的结果是一致的。

To preserve more detail during image denoising, a combined wavelet and ridgelet approach is presented.

为了在图像去噪时更好地保持细节特征，提出了联合小波和脊波的阈值去噪方法。

Each detail image is first denoised with ridgelet threshold method, and then decomposed with wavelet.

对细节图像进行脊波阈值去噪处理，然后再进行单层小波分解。

Numerical results show that ridgelet transform is more effective than the wavelet transform in approximating and denoising images with straight edges.

实验结果说明，脊波在对具有直线边缘的图像逼近和去噪时的确比小波有效。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。