bit sequence短语¹³¹⁶²⁰⁺³ 基本例句 位序列 First the system changes the watermark into a bit sequence, and then embeds the bits into the block- DCT of the image based on modular arithmetic. 然后对原图像进行分块 DCT变换,并以算术模运算为基础将二进制水印信息嵌入 DCT块中。 dictall The principle of generating high speed true random bit sequence using white noise is discussed. 本文分析了用白噪声产生高速真随机码的基本原理。 cnki