摘 要 文章介绍了直接数字频率合成器(DDS)的组成及工作原理,描述了DDS芯片
AD9852的功能特性,同时给出了AD9852在本地同步时钟中的应用。
关键词 DDS AD9852 同步时钟 -Abstract This paper presents a direct digital synthesizer (DDS) the composition and working principle, describes the DDS chip AD9852 functional properties, at the same time gives the AD9852 clock synchronization in the local application. Key words DDS AD9852 synchronous clock
Digital Signature Algorithm (DSA)是Schnorr和ElGamal签名算法的变种,被美国NIST作为DSS(DigitalSignature Standard)。算法中应用了下述参数:
p:L bits长的素数。L是64的倍数,范围是512到1024;
q:p - 1的160bits的素因子;-Digital Signature Algorithm (DSA) is the Schnorr and ElGamal signature algorithm variants, by the U.S. NIST as a DSS (DigitalSignature Standard). Algorithm applied the following parameters: p: L bits-long prime. L is a multiple of 64, range 512 to 1024 q: p- 1 of 160bits prime factor
用C语言实现了线段裁剪,代码可以直接复制到tc里面运行,很好实现了线段裁剪-With the C language to implement Line Clipping, code can be directly copied to the tc run inside, well realized Line Clipping