上行设备在建站时的疏漏和运行中的故障都是载波干扰的常见原因。
Carrier interference is often caused by careless installation or malfunction of uplink devices.
该文提出了一种基于最大化载波干扰比原理的含参数的预编码方案。
A new pre-coding scheme based on the maximum of carrier-to-interference is proposed in this article.
采用了子波函数对含强载波干扰的局部放电信号进行连续子波变换。
This paper introduces a continuous wavelet transformation for detecting the disturbed partial discharge pulses in HV transformer.
模拟结果表明,该方法比一般的载波干扰比功率控制方法性能更优,可获得更低的误码率和更高的信道容量。
Compared with conventional power control method utilizing carrier to interference ratio, the simulation results show that it can achieve lower bit error ratio and higher channel capacity.
文章分析了存在载波相位起伏、正弦干扰、高斯白噪声时正交调幅数字系统的抗扰性。
The paper analyzes the interference rejection of Quadrature amplitude modulation signals in the presence of carrier phase jitter, sinusoidal interference and white Gaussian noise.
大的峰值会使功率放大器饱和,在子载波间产生交调干扰和导致能量的带外弥散。
These large peaks cause saturation in power amplifiers, leading to intermodulation products among the subcarriers and disturbing out of band energy.
对于多载波系统,载波频率的偏移会导致子信道之间产生干扰。
The offset of carrier frequency can cause interference between subchannels in a multicarrier system.
与传统的单载波调制方式相比,OFDM技术可以有效地抵抗信道多径干扰,提高系统的传输速率。
Compared with the traditional scheme of single-carrier modulation, OFDM technology has more effective anti-jamming ability and achieves higher transmission rate.
多调制源、多载波信号的循环自相关解调分析存在交叉项的干扰,这使循环自相关解调方法的实际应用产生了困难。
The cross-term interference caused by multi-modulator and multi-carrier makes it difficult the use of the cyclic autocorrelation demodulation.
他是较为完备的移动接收和传输技术,可以大大降低每个子载波内的符号间干扰,节省了用于均衡的系统开销。
It is a mature receiving and transmitting technique, which can lower the interference of symbol in each carrier and economize the system expense used for balance.
在电力载波技术的应用中,信号干扰和衰减是影响信号传输的重要原因。
In powerline carrier wave application, signal disturbing and signal attenuation is the important reason of effecting signal transmission.
通过对载波接收机限幅干扰分析,提出电路改进的办法。
Based on the analysis of carrier receiver limited amplitude interference, provide a way of circuit modification.
分析了彩色副载波和伴音内载波差拍干扰产生的原因、设计应考虑的问题以及测试方法。
The reason to produce beat interference of color subcarrier and sound intercarrier is analyzed with the introduction of considerable items for design and testing methods.
文中估计了存在部份带宽干扰下系统的性能,并与单载波直扩码分多址系统进行了比较。
The system performance is evaluated in the presence of partial band interference, it is compared with that of a single-carrier DS CDMA system.
利用降低码片速率有效降低每路信号占有的带宽,将每路信息的比特分配在不同的调制载波上,减少了各路信号间的多址干扰。
Frequency width is compressed by decreasing signature-code speed and using bit-signal modulates by different carrier so as to decrease multi-user interference.
它结合了OFDM和CDMA的优点,在高速数据传输时,其抗符号间干扰的性能明显优于传统的单载波cdma系统。
It combines the advantages of OFDM and CDMA, and its capability of combating ISI is obviously better than that of a single-carrier CDMA for the high data rate transmission.
当存在同步错误时,子载波之间的正交性遭到破坏,从而引起严重的载波间干扰,使解调性能大大下降。
When a synchronization error exists, the orthogonality between sub-carriers can't be maintained, serious inter-carrier interference is introduced and demodulation performance will be degraded greatly.
介绍了BCCH载波与TCH载波的频率配置、信号衰落算法、干扰原理、动态功率控制的调节思路,以及提高网络质量,改善小区登陆与切换性能的措施。
I introduce the frequency allocation between BCCH carrier frequency and TCH, signal fading arithmetic, interference theory and the adjusting thinking of dynamic power control.
众所周知,采用电力载波通信方式有着明显的缺点:通道干扰大,数据传输难以保障。
It is known to all that the shortage of carrier wave mode: great disturbance in channel make it difficult to transmit fault data.
该文考虑空时分组码多载波码分多址(MC-CDMA)系统的盲干扰抑制。
This paper considers blind interference suppression for a space-time block coded MultiCarrier CDMA (MC-CDMA) system.
定时偏差会导致码间干扰,频率偏差会破坏子载波间的正交性,引起子载波间干扰,从而使系统整体性能急剧下降。
Timing offset causes inter-symbol interference, and frequency offset would destroy the orthogonality between subcarriers, causing ICI, which lead to a sharp decline in overall system performance.
针对通信侦察等领域的需要,将梳形滤波器应用于自干扰载波下短周期伪码的截获中。
With the demand of such field as communication reconnaissance, comb filters application to capture of short cycle PN-code under self-jamming cartier is studied.
该接收技术可以有效去除传统的OFDM系统中的载波间干扰,消除误码的地板效应,提高了系统性能。
In this way, the ICI and "error floor" in traditional OFDM system are removed, and the performance is enhanced.
本文针对上行链路任意分配子载波重点研究了载波频偏估计和多用户间干扰消除的方法。
This paper focuses on carrier frequency offset estimation (CFO) and multiuser interference elimination in uplink OFDMA system based on generalized carrier assignment schemes.
提出利用双向载波捕获体制(双捕)提高通信链路的抗干扰性能,并分析其抗干扰机理。
Using Both -capture to Improve the Performance of Communication 's Link is presented and analyzed.
该系统电路简捷、速度快、抗干扰能力强,可在很宽的载波频率范围内应用和深入研究。
The system features simple construction , quick response and strong anti - interference ability. It may be applied and further developed in the field of wide range of carrier frequencies.
多载波扩展频谱码分多址系统(MC/CDMA)是一种消除符号间干扰的有效技术。
MC/CDMA is one of the effective techniques to mitigate the ISI.
在上行链路中每个用户由于载波频率偏差而存在潜在的不同步,这样使子载波之间失去正交性,从而在基站接收端产生多用户间干扰。
However in uplink channel, each user has its own frequency offset which leads to a loss of orthogonality among the sub-carriers and multiuser interference at the base station receiver.
近年来,多载波OFDM系统因其均衡简单且能有效地抗多径干扰而受到广泛地研究。随着研究的深入,发现单载波系统也有类似的均衡办法与优点。
Multicarrier Orthogonal frequency-division multiplexing(OFDM) Systems have been widely researched in recent years because of its good anti-multipath characteristic when easily equalized.
近年来,多载波OFDM系统因其均衡简单且能有效地抗多径干扰而受到广泛地研究。随着研究的深入,发现单载波系统也有类似的均衡办法与优点。
Multicarrier Orthogonal frequency-division multiplexing(OFDM) Systems have been widely researched in recent years because of its good anti-multipath characteristic when easily equalized.
应用推荐