interference fading
英 [ˌɪntəˈfɪərəns ˈfeɪdɪŋ]
美 [ˌɪntərˈfɪrəns ˈfeɪdɪŋ]
网络 干扰衰落; 干扰性衰落
双语例句
- A general space-time CDMA system model in multipath fading channels is built to study how to suppress both multiple access interference ( MAI) and multipath fading.
通过建立了一般的空时CDMA系统模型，探讨多址干扰和多径效应的联合抑制问题。 - Computer simulation results show that under the interleaving coding and power control, for a given bit error rate, the required ratio of signal to interference increases slightly as the fading increases;
仿真结果表明，由于编码交织及功率控制的共同作用，在链路达到一定误码率时，所需的信噪比随着信道衰落的增加而增加缓慢； - It is characterized by high spectral utilization, can efficiently combat against multipath interference and selective fading of frequency. It possess not only spread spectrum gain, but also coding gain.
这种调制方式具有较高的频谱利用率，能够有效的对抗多径干扰和频率选择性衰落，它不仅具有扩频增益而且具有编码增益。 - In the digital microwave 140 Mbit/ s 16 QAM Communication systems, the baseband adaptive equalizers are usually used to compensate the intersymbol interference caused by multipath fading.
目前国内外广泛使用的数字微波140Mb/s、16OAM系统，由于选择性衰落造成的码间干扰，一般都采用基带自适应均衡器予以补偿。 - Wireless communication systems are limited in performance and capacity by three major impairments: co-channel interference, multipath fading and delay spread.
在移动通信中，有三个因素影响容量和质量的提高：共信道干扰、多径衰落和时延扩展。 - Performance analysis of a dual antenna handset under co-channel interference and fading environment
存在共道干扰的多径衰落环境中手机双天线系统性能研究 - The paper analyzed theoretically the performance of cochannel interference with Nakagami fading and log-normal fading, and presented the method of approximation which could predict the cochannel interference and its effect in microcellular multipath fading mobile radio system.
本文对具有Nakagami衰落和对数正态衰落的同频道于扰特性进行了理论分析，并提出了对微蜂窝多径衰落移动无线电系统中的同频道干扰及其影响进行预测的近似方法。 - The various factors, such as noise, interference and fading, relating to radio wave propagation circuits, as well as the methods dealing with the factors are described.
本文讨论了与电波传播电路计算有关的各种因素，例如噪声、干扰和衰落，以及对它们的处理方法。 - Orthogonal Frequency Division Multiplexing ( OFDM) is an effective transmission scheme to cope with many impairments, such as cochannel interference, serve multipath fading and impulsive parasitic noise.
正交频分复用（OrthogonalFrequencydivisionMultiplexing，OFDM）技术在解决无线移动通信系统中显示了许多特点，如抗多路径衰落和频际间的干扰等。 - It has the basic structure of RAKE receiver in which every path signal could be traced by MMSE optimization strategy, therefore it can suppress the NBI and Multi-Access Interference ( MAI) over multipath fading channel.
它具有RAKE接收机的基本结构，在每一条并行支路中利用MMSE准则跟踪各路径信号。因此具有抗多径衰落，同时抑制NBI和多址接入干扰（MAI）的能力。 - OFDM is a multi-carrier high-speed wireless transmission technology, with high channel utilization and good performance in mitigating multi-path effects 、 eliminating inter-symbol interference and resisting frequency-selective fading.
OFDM是一种多载波高速无线传输技术，它能有效对抗多径效应，消除符号间干扰，对抗频率选择性衰落，而且信道利用率高。 - In a communication system, after noisy channel transmission, signal distortion will inevitably appear as a consequence of communication channel noise interference and fading characteristic, when information signal reaching the receiver side.
由于通信信道固有的噪声衰落特性，信号在经过有噪信道传输后，到达接收端的过程不可避免地会受到干扰而出现信号失真。 - Equalization technology should be used to compensate for intersymbol interference s created by multipath fading.
我们可以采用均衡技术来补偿信道中由于多径效应产生的码间干扰（ISI）。 - Cochannel Interference Cancellation in flat fading channels
平坦衰落信道下的同信道干扰抵消 - OFDM has high utilization ratio of spectrum, low cost and can resist the multi-path interference and frequency-selective fading, so it has become the hotspot of study after CDMA.
OFDM技术能够有效对抗多径干扰与频率选择性衰落，并具有频谱利用率高、成本较低等优点，已成为继CDMA之后的研究热点。 - At present, some technology of resisting interference and fading in the cellular system have been used, such as maximum ratio combining technology and multi-user diversity technology.
目前，一些抗干扰和衰落的分集技术在蜂窝系统中不断应用，如最大比合并技术和多用户分集技术，合理的利用分集增益在实际通信中可以有效的提高蜂窝系统性能。 - Signals transmitting through the air often suffer from interference, fading, and the Doppler spread caused by the movement of both mobile stations and the scatters. Therefore, radio channels are more complex than wired channels.
信号在无线信道中传播时，遭受到干扰、衰落和由移动台的运动引起的多普勒扩展等效应，都使它与有线信道相比要更为复杂。 - MIMO-OFDM system can take full advantages of both MIMO and OFDM, which can increase data transmission rate for several times and simultaneously overcome intersymbol interference and multipath fading of wireless channel.
MIMO-OFDM系统充分地发挥了MIMO和OFDM的优点，在成倍增长信息传送速率的同时，有效地对抗了无线信道的多径衰落和码间干扰。 - The chirp signal has been used in RADAR system with its resistance of interference, Doppler Effect and multi-path fading.
线性调频信号（ChirpSignal）长期以来被用于雷达系统中，它以其抗干扰、抗多普勒频移、抗多径衰落、低功耗和系统结构简单等优势，越来越受到人们的重视。 - Wireless mobile communication system, how to eliminate the multiple access interference, co-channel interference, multipath fading and delay spread caused by crosstalk between symbols factors become the major factors considered by the people to improve system performance.
对于无线移动通信系统，如何消除多址干扰、同信道干扰、多径衰落以及时延扩展造成的符号间串扰等因素的影响成为人们在提高系统性能时考虑的主要因素。 - The multiple access interference and multipath fading of MIMO system can cause the distortion and distortion of signal, we need to come up with effective space-time signal processing program to solve this problem.
MIMO系统存在的多址干扰和多径衰落会造成接收信号的失真、畸变，为解决这一问题需要提出有效的空时信号处理方案。 - Its most notable feature is the high-speed transmission ability as well as the strong resistibility to the inter-symbol interference and selective fading channel.
其最大的特点是传输速率高，对码间干扰和信道选择性衰落具有很强的抵抗能力。 - A novel cell search signal and cell search scheme based on sequence and sign detection are proposed for the problems of the interference between sectors, multipath fading, frequency offset, and timing offset.
针对小区搜索过程中的扇区间干扰、多径衰落、频率偏移、定时偏移问题设计了新的小区搜索信号，提出了一种基于序列与符号检测的小区搜索方案。 - The primary challenge in communication over wireless networks, unlike wire line networks, is the existence of interference and channel variations ( fading).
不同于有线网络，无线通信网络的主要挑战是干扰和信道变化（衰落）。 - It is a good way to combine STC with OFDM to solve this problem. Otherwise, various interference and multi-path fading exist in practical wireless communication systems at the same time.
于是将空时编码技术和OFDM结合可以起到很好地互补作用。另外，在实际的无线移动通信系统中，多径衰落和各种干扰等问题是同时存在的。 - 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 WLAN, environment changing, radio interference, multi-path, fading, etc. may lead to the failure in data transmissions.
在无线网络中，环境变化、无线电干涉、多径传输、信号衰减等因素的影响，会造成数据发送失败。 - Multicarrier communication technology, such as orthogonal frequency division multiplexing ( OFDM), owning to its high bandwidth efficiency, resistance to narrowband interference and frequency-selective fading, has been selected as the major candidate technique for the future wireless communication systems.
多载波无线通信技术以其高频谱效率、对抗频率选择性衰落和对抗窄带干扰等优势，成为未来无线系统的主要候选方案。 - To approach the performance of MIMO channel capacity, channel code is usually employed to combat interference, noise and fading.
为了获取接近MIMO容量极限的性能，常常还必须依赖于信道编码技术来有效地对抗干扰、噪声和衰落。 - Likewise, the received packet in each retransmission is different due to that the multiple access interference, noise and fading are random and time-variant.
由于多址接入干扰、噪声和衰落都是随机时变的，因此每次接收到重传的数据包信号是不相同的。