扩展码 meaning in Chinese
extended code
extension code
Examples
- Experimental results of computer simulation also show that it can get very high spectrum efficiency
计算机仿真证明了该方法设计的cdma扩展码性能的优越性。 - Absolute minimal trellis complexities of extended codes and their dual codes of two types of linear block codes whose code length is odd are given
给出了两类奇数码长线性分组码的扩展码及其对偶码的绝对最小网格图复杂度。 - As to cyclic codes over finite chain rings , we study their stucture and develop the fourier transform method to finite chain rings . the permutation groups of cyclic codes and their extended codes are investigated using their mattson - solomn polynomials
对于有限链环上的循环码，我们研究了它们的结构，并把傅立叶变换的方法推广到有限链环，用循环码的mattson - solomn多项式对循环码及其扩展码的置换群进行了研究。 - In this paper , after introduction of the code division multiple access ( cdma ) and orthogonal multicarrier ( mc ) technique , the system model of mc - cdma is analyzed and the bit error rate ( ber ) performance in downlink and uplink channel is shown in awgn channel by computer simulation
本文在码分多址技术和正交多载波技术原理基础上，分析了高斯白噪声信道中多载波码分多址( mc - cdma )系统的数学模型，并且使用不同的扩展码对下行信道和上行信道误码率性能分别作了计算机仿真分析。 - This dissertation researches on wavelet theory applied to information transmission , including cdma spreading code design , waveform coding in digital modulation , over - saturated multi - access communication , diversity techniques for multi - path fading channels , and peak - to - average power ratio ( papr ) reducing methods for the wavelet packet modulation signals , etc .
本文以子波理论为工具，较深入地研究了信道传输方面的几个问题，内容包括cdma扩展码的设计、数字基带波形成形技术、过饱和多址通信、克服衰落的分集技术和减小子波包调制信号的峰值功率/平均功率比值的方法等。