| 1. | Methods for data - aided channel estimation for ds - uwb systems
超宽带系统中有辅助符号的信道估计方法 |
| 2. | Symbol timing with modified autocorrelation scheme for uwb systems
多径超宽带系统修正自相关符号同步方案的实现 |
| 3. | Evaluation method of the link significance of communication network based on reliability index
针对基于正交频分复用的超宽带系统 |
| 4. | A novel based on eigenvector combine transmission diversity scheme for ultra - wideband communication system
一种新的基于特征向量合并的超宽带系统分集方案 |
| 5. | Orthogonal frequency division multiplexing ( ofdm ) is a suitable digital modulation technique for broadband systems
正交频分复用( ofdm )技术是一种适用于宽带系统的多载波数字调制技术。 |
| 6. | Standard guide for procedure for measuring ionizing radiation - induced attenuation in silica - based optical fibers and cables for use in remote fiber - optic spectroscopy and broadband systems
用于远距离光纤光谱测定和宽带系统的硅基光纤和光缆电离辐射感应衰减测量程序的标准导则 |
| 7. | The location in a broadband system that serves as the root for the branching tree comprising the physical medium ; the point to which all forward signals converge and the point from which all reverse signals emanate
宽带系统中的一个点,用作由物理媒体组成的分支树的根,所有正向信号都在此点会聚,所有反向信号都在此点发出。 |
| 8. | However , performance is limited by the low signal - to - noise ( snr ) and high date rate . a potential solution is to add a strong error correcting code . so studying the error correcting code on uwb system is necessary and worthy
但是超宽带信号频谱宽、功率低且传输速率很高,使其更容易受到各种干扰而影响传输质量,所以在超宽带系统中研究信道编解码技术变得非常必要和有价值。 |
| 9. | In the thesis , i first summarize the characteristics and development of uwb technique and point out the necessary of channel code in uwb system based on the characteristics of uwb signal , and then introduce why ldpc code is fit for the uwb system
接下来针对超宽带信号的特点阐述了超宽带系统采用信道编码的必要性,介绍了目前流行的纠错码技术? ?低密度校验( ldpc )码和其适合于超宽带系统的原因。 |
| 10. | And the resemblance is pointed out between continuous wavelet transform ( cwt ) and waf . in the course of computing waf , the scaling replica is very important . based on the properties of cwt , three approaches have been proposed for the scaling of a wavelet that has no analytic form
详细阐述了宽带信号及系统的三个条件、宽带系统的回波模型和宽带模糊度函数的概念，指出了连续小波变换( cwt )与宽带模糊度函数的惊人相似之处。 |
