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散射通信利用大气层中传播媒介的不均匀性对无线电波的散射作用进行的超视距通信。根据散射媒质的不同,散射通信一般分为对流层散射通信和电离层散射通信。通常所说的散射通...
散射通信利用大气层中传播媒介的不均匀性对无线电波的散射作用进行的超视距通信。根据散射媒质的不同,散射通信一般分为对流层散射通信和电离层散射通信。通常所说的散射通信大多是指对流层散射通信。-Scatter communication using the atmosphere of media heterogeneity on the role of radio-wave scattering of-the-horizon communications. According to the different scattering medium, scattering communication are generally divided into tropospheric scatter communications and ionospheric scatter communication. Commonly referred to as scattering communication are mostly tropospheric scatter communications means.
- 2023-06-08 13:25:03下载
- 积分:1
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With a triangular mesh contour map is the edge of the triangle with the three me...
用三角网法绘制等值线,是在三角形的三条边上用线性内插方法寻找等值点,这种方法的机理是将每个三角形看作是空间的一个平面,这就要求在每个三角形的三个顶点内的地貌形态无明显的变化,故此希望将其中最靠近的三个点构成三角形,以符合上述机理,使插补的等值点精度较高,更好的反映地貌的实际形态。符合这些条件的三角形称之为“最佳三角形”-With a triangular mesh contour map is the edge of the triangle with the three methods of linear interpolation to find the equivalent point, the mechanism of this method is to each triangle as a space plane, which requires each triangles three vertices with no obvious patterns of geomorphic change, it wished to put the three points closest to constitute a triangle in order to comply with the above mechanism, so that the equivalent interpolation points higher accuracy, better reflects the landscape the actual shape. Applying these criteria to the triangle known as the
- 2023-08-08 03:45:04下载
- 积分:1
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文件模拟之VC++实现
课件
设计指导实现方法
文件模拟之VC++实现
课件
设计指导实现方法-file imitate
- 2023-04-07 07:40:03下载
- 积分:1
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lcd slide show project
lcd slide show project
- 2023-07-29 01:05:04下载
- 积分:1
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Neural network ppt, Tsinghua University, and very comprehensive, and they hope t...
神经网络的ppt ,清华大学的,很全面,希望对大家都帮助-Neural network ppt, Tsinghua University, and very comprehensive, and they hope to have everyone help
- 2022-04-24 19:54:50下载
- 积分:1
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实现椭圆对话框
实现椭圆对话框-The realization of elliptic dialog
- 2022-07-05 01:59:56下载
- 积分:1
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Interfacing 4x4 KeyPad with 8051
与8051系列微控制器接口的4X4小键盘代码。它可以由任何4X4键盘使用,很容易适应3X4键盘。
- 2022-05-18 23:10:01下载
- 积分:1
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提出了一种基于小波域的图像数字水印算法・该算法将相互正交的两种水印(鲁棒水印和参考
水印)同时添加到经过DWT后的载体图像小波系数中,然后用小波反变换得到添...
提出了一种基于小波域的图像数字水印算法・该算法将相互正交的两种水印(鲁棒水印和参考
水印)同时添加到经过DWT后的载体图像小波系数中,然后用小波反变换得到添加了水印的图像・用提取出
的参考水印来估计图像所受到的攻击,由于提取出的鲁棒水印所受的攻击与参考水印受到的攻击一样,因此
可以估计出原始的鲁棒水印・通过对嵌入水印的图像进行加入噪声、滤波、压缩以及裁剪等大量图像处理等试
验,均能正确检测出水印,表明该算法具有很好的感知效果和鲁棒性
-A wavelet-based image digital watermarking algorithm that the algorithm will be mutually orthogonal two watermarks (watermark robust watermarking and reference) at the same time added to the carrier after image after DWT wavelet coefficients, and then using wavelet transform has been Add a watermark image to use to extract a reference to estimate the watermark image by the attacks, as a result of the robust watermark extracted suffered attacks and the reference watermark by the same attack, it can be estimated through the original Robust Watermarking of the embedded watermark image by adding noise, filtering, compression and cutting, such as a large number of image processing such as testing, can correctly detect the watermark, show that the algorithm has good
- 2023-07-21 02:35:04下载
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电池充电器的AVR Microcontroler
镍氢充电算法的源文件 - FAST_charge - TRICKLE_charge。 旅行电池充电器参考设计与ATtiny15的 ; - 电池特殊功能: ; - fast_charge ; - trickle_charge
- 2022-01-21 19:36:23下载
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document for ti s latest chip. dsp developer s handbook.
TI DSP的最新芯片DM642的规范文档。从事DSP芯片开发必看之。-document for ti s latest chip. dsp developer s handbook.
- 2022-11-17 12:10:03下载
- 积分:1