linear adj. 1.線的,直線的。 2.長度的。 3.【數(shù)學】一次的,線性的。 4.【動、植】線狀的;細長的。 5.由線條組成的,以線條為主的,強調(diào)線條的。 linear amplification 直線放大。 a linear equation 一次方程式。 a linear leaf 線形葉。 linear arts 線條藝術。
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 然后簡單分析了線性碼的碼元分離度的性質(zhì),并在此基礎上分析了一致校驗矩陣的列相關性,從而得到了線性碼的消息分離度和碼元分離度的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碼屬于線性分組碼,線性分組碼的通用編碼方法是由信息序列根據(jù)碼的生成矩陣來求相應的碼字序列,盡管ldpc碼的校驗矩陣是非常稀疏的,但它的生成矩陣卻并不稀疏,這使得其編碼復雜度往往與其碼長的平方成正比。
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 下一代移動通信系統(tǒng)為了滿足移動用戶對高速、寬帶數(shù)據(jù)傳輸業(yè)務不斷增長和更高服務質(zhì)量的要求,采用了許多新的無線鏈路傳輸技術,包括多天線發(fā)射和接收技術、正交頻分復用技術、信道糾錯編碼技術和自適應編碼調(diào)制技術等。上世紀60年代提出的低密度校驗碼,是一種校驗矩陣為稀疏矩陣的線性分組碼。