| 1. | Multipath fading signal analysis with wavelet and fractal theories 基于小波和分形理论的多径衰落信号分析 |
| 2. | Blind multipath fading channel etimation and equalizer in digital communication 数字通信中的盲多径衰落信道估计与均衡 |
| 3. | Multiple access interference ( mai ) and multipath fading are two major factors limiting performances of cdma communication systems 多址干扰和多径衰落是限制cdma系统性能的主要因素。 |
| 4. | Then , the performance of mc - cdma system in multi - path fading channels will be simulated and analysed by means of monte - carlo method 然后,利用monte - carlo算法对多载波cdma系统在多径衰落信道下的性能进行了仿真分析。 |
| 5. | Blind equalization is an effective way to suppress the inter - symbol interference ( isi ) , which is caused by multipath fading communication channels 摘要在数字通信中,盲均衡是克服多径衰落信道导致的码间干扰的一种有效方法。 |
| 6. | Stbc ( space time block code ) is the main method to realize mimo diversity , and it is good at mitigating the influence of wireless multipath fading 而stbc ( spacetimeblockcode ,空时分组码)则是实现mimo分集的重要手段,长于对抗信道的多径衰落。 |
| 7. | This paper concentrates on the orthogonal frequency division multiplexing ( ofdm ) technique and some techniques to resist multipath fading . it also simulates by computer 本文主要研究正交频分复用( ofdm )及其抗多径衰落的一些技术,并利用计算机进行仿真。 |
| 8. | Two simulation algorithms of realization channel characteristic are analyzed emphatically : shaping of slow fading with correlation and generation of frequency - selected multipath fading 重点分析了实现信道特性仿真的两种算法:慢衰落的相关性整形和频率选择性多径衰落。 |
| 9. | Rake receiving is a very effective method against multi - path fading in cdma system . it separately demodulates each received signal , and then overlaps output to enhance the effect of receiving Rake接收是cdma系统抗多径衰落的一种十分有效的方法,它是分别对每一路所接收的信号进行解调,然后叠加输出达到增强接收效果的目的。 |
| 10. | But in tdd - cdma system , there are many problems to solve including multipath fading , perspective effect , multiple access interference which influence its capacity and quality of service 同其它cdma系统一样, tddcdma系统在无线传输中仍然存在着多径衰落、时延扩展、远近效应、多址干扰等问题,直接影响了系统的容量和服务质量。 |