multiple access interference造句
例句与造句
- impact of multiple access interference on capacity of a multi-rate cdma system
系统中多址干扰对系统容量的影响 - moreover, multiple access interference due to the existence of other users was analyzed
此外，还对多个用户情形下的多址干扰进行了分析。 - 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。 - in cdma system, multiple access interference limits the capacity of any system using conventional single user correlation or matched filter receivers
在cdma系统中，采用常规的单用户相关或匹配滤波的方法，多址干扰限制了系统容量。 - if the assigned spreading codes are orthogonal and signals are transmitted through a flat fading channel, there will be no multiple access interference ( mai )
如果所有用户采用理想正交扩频码并且通过同步平坦衰落信道，系统中将不会存在多址干扰(mai:multipleaccessinterference)。 - It's difficult to find multiple access interference in a sentence. 用multiple access interference造句挺难的
- but mc-cdma system still has some problems . some of the most important sources for performance degradation of mc-cdma systems are carrier frequency offset and the multiple access interference ( mai )
然而多载波cdma系统也存在一些问题，多址干扰和频率偏移等问题会带来明显的性能下降。 - 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。 - due to multipath effect, multiple access interference ( mai ), near-far effect, and mainly the non-li ne-of-sight ( nlos ) propagation, the errors in the estimated location parameters and position location occur
在cdma蜂窝网的定位中，引起定位参数估计误差与定位误差的因素有非视距传播效应、多径传播效应、多址干扰及远近效应。 - in this dissertation, multiuser detection and space-time processing are combined to suppress multiple access interferences and inter-symbol interferences ( isi ) jointly in multipah fading channels with large delay spread
本文组合多用户检测和空时处理技术，在大时延扩展的多径衰落信道条件下，研究多址干扰和符号间串扰的联合抑制。 - this paper analyse all kinds of interference of tdd-cdma system in detail, establish interference model; based on this, establish multiple access interference module of uplink . in some sense, tdd-cdma is based on smart antenna
本论文详细研究了tddcdma系统存在的各种干扰，建立了干扰模型；并以上行链路为例，建立了上行链路多址干扰模型。 - when ccc are used for spreading codes, multiple access interference ( mai ) is zero theoretically even under asynchronous transmission . if cc / ccc are used for spreading codes, one data symbol could be transmitted during one-chip duration
若采用互补码作为扩频码，理论上而言，不管在同步模式还是异步模式下，都不存在多址干扰；又可用特殊的调制方式做到在1个码片的时间内传输一个数据符号。 - the cdma multiuser detection is one of the key technique of the third communication system . in cdma communication system, there always have some relativity in the sequence assigned to the users, which is the root of multiple access interference
cdma系统多用户检测技术是第三代移动通信系统的关键技术之一。在cdma通信系统中,指定给各用户的特征序列总是存在一定的相关性,这就是多址干扰产生的根源。 - direct sequence-code division multiple access ( ds-cdma ) communication systems are interference-limited systems . a cdma system employing conventional detect techniques will be degraded in performance and limited in capacity because of multiple access interference ( mai ) and near-far effects
ds-cdma通信系统是一个干扰受限系统，传统的检测技术由于多址干扰和“远?近”效应的影响使系统的性能和容量明显下降。 - the power of multiple access interference ( mai ) directly confines the capacity of ds-cdma system . as the mainstream of mai suppression technologies, multi-user detection ( mud ) performs a significant role to improve the bit error rate ( ber ) performance and to increase the capacity of systems
在直扩码分多址(ds-cdma)系统中存在的多种干扰中，多址干扰对系统性能的影响最为强烈，多址干扰的强弱会直接影响到系统容量的大小。 - the 3rd generation ( 3g ) mobile communications system and part of the 2nd generation ( 2g ) mobile communications use pn sequences or walsh codes as spread codes, and their system capacities are limited by the multiple access interference ( mai ) from asynchronous transmitted signals
采用pn序列和walsh码进行直序列扩频的第三代和部分第二代cdma移动通信系统，其容量受到异步传输时多址干扰的限制，其数据率因在n个码片的时间内只能传输一个数据符号而受限。
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