With the development of computing technology and cryptography, high-speed digital physical noise generator is urgently required in cryptography at present.
由于数字物理噪声源可以产生随机性较好的随机数作为密钥，已被广泛应用于安全信息系统。
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。
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。
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