The linear transformation technique extended the field of designing low-sensitivity digital filters from analog prototype, and resulted in a number of different digital structures.
线性变换方法的出现拓宽了由模拟原型设计低灵敏度数字滤波器的领域，形成众多的不同数字结构。
In addition a digital signal generator was incorporated via a DDS chip AD9850 from Analog Devices inc, featuring accurate frequency preset, quick phase transformation and low phase noise.
另外还采用AD公司DDS器件ad9850实现了一种频率可控制、相位变化快、相位噪声低的DDS信号源。
As the process of transformation from analog TV to digital TV, more and more citizens contacted with digital TV technology. Set-top-box (STB) had made a key role in this process.
随着数字电视整体平移进程的进行，越来越多的普通群众接触到了数字电视技术，机顶盒在数字电视整体平移进程中充当重要角色。
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