linear adj. 1.线的,直线的。 2.长度的。 3.【数学】一次的,线性的。 4.【动、植】线状的;细长的。 5.由线条组成的,以线条为主的,强调线条的。 linear amplification 直线放大。 a linear equation 一次方程式。 a linear leaf 线形叶。 linear arts 线条艺术。
Some properties of separation vector of linear block codes are shown, the relationship of a variety of codewords subspace and separation vector is derived, also a serie of theorems of parity check matrix and code symbol separation are proved . the singlton bound of separation is then proved 然后简单分析了线性码的码元分离度的性质,并在此基础上分析了一致校验矩阵的列相关性,从而得到了线性码的消息分离度和码元分离度的singlton限。
Ldpc code belongs to the linear block code which is encoded by the information sequence multiplies generator matrix . although the parity-check matrix of ldpc code is sparse, the generator matrix is not . the encoding complexity of it is linearly proportional to the square of code length ldpc码属于线性分组码,线性分组码的通用编码方法是由信息序列根据码的生成矩阵来求相应的码字序列,尽管ldpc码的校验矩阵是非常稀疏的,但它的生成矩阵却并不稀疏,这使得其编码复杂度往往与其码长的平方成正比。
In next mobile communication system to suffice more and more high-speed data service and demand of qos ( quality of service ) many new wireless link layer transport technologies are going to be used such as mimo ( multiple input multiple output ), ofdm ( orthogonal frequency division multiplexing ), channel coding and acm ( adaptive coding modulation ) etc . low density parity check ( ldpc ) codes were first discovered in 1960 ’ s which belong to linear block codes with their parity matrix being sparse 下一代移动通信系统为了满足移动用户对高速、宽带数据传输业务不断增长和更高服务质量的要求,采用了许多新的无线链路传输技术,包括多天线发射和接收技术、正交频分复用技术、信道纠错编码技术和自适应编码调制技术等。上世纪60年代提出的低密度校验码,是一种校验矩阵为稀疏矩阵的线性分组码。