码长度 meaning in Chinese

code length

Turbo code was introduced by c . berrou in 1993 . turbo code can achieve the error correcting capacity close to the shannon - limit with reasonable decoding complexity , provided that the code words are long enough
1993年, c . berrou提出了一种新的信道编码方案? ? turbo码, turbo码能够在编码长度较长的情况下得到接近香农极限的纠错性能。
At last the algorithm of ddmf is achieved by the investigation tool of altera company ? quartus ii and the vhdl language , and its ip core is also achieved which is used not only in the satellite navigation position system , but also in the long pn code dsss system . ddmf investigated in the dissertation gives a good way to design the rapid pn code acquisition in the beidou project , and the technology has the definite theory and practice significance
此外还应用altera公司的最新的fpga开发工具quartusiiv5 . 1 ,采用了国际标准的硬件描述语言? vhdl语言,对数字差动匹配滤波器和传统匹配滤波器算法予以实现,开发了该算法的软ip核,可以对所应用的扩频码长度, a / d采样后的数据量化阶数,所用扩频码等可进行随意改写。