selective fading
英 [sɪˈlektɪv ˈfeɪdɪŋ]
美 [sɪˈlektɪv ˈfeɪdɪŋ]
选择性衰落
双语例句
- A Low Complexity Decoding Algorithm for Orthogonal Space Time Block Codes in Frequency Selective Fading Channels
频率选择性衰落信道中一种低复杂度的正交空时分组码译码算法 - Study on the Space-Time Coding for Frequency and Time Selective Fading Channels
频率和时间选择性衰落信道下的空时编码技术研究 - A two-ray model is used for the frequency selective fading channel.
频率选择性衰落信道采用了两径模型。 - The time-and frequency-selective fading channel is so-called doubly selective fading channel.
同时具有时间和频率选择性衰落的信道，我们称之为双衰落信道。 - The new coded strategy can achieve full space-time-frequency diversity over frequency selective fading channel.
在频率选择性信道中，新编码策略可以获得空时频全分集增益。 - In this paper the performance of uplink in the cellular CDMA network, based on the reception of smart antenna, is analyzed in the frequency selective fading channel.
本文分析了在频率选择性信道中基于智能天线阵接收的蜂窝CDMA网络上行链路的性能。 - OFDM is one of the key techniques to effectively combat frequency selective fading.
正交频分复用（OFDM）是一种有效克服频率选择性衰落的技术。 - This paper studies the channel estimation for OFDM systems with transmitter diversity in frequency selective fading channels. A decision feedback channel estimation method based on Turbo iteration is presented.
本文对频率选择性衰落信道条件下发射分集OFDM系统的信道估计进行了研究，提出了一种基于Turbo迭代的判决反馈信道估计方法。 - In this paper is investigated the issue of equalization for linear SISO time selective fading channel.
本文研究了线性单输入单输出（SISO）时间选择性衰落信道的均衡问题。 - There are some severe problems in wireless communication systems, such as frequency selective fading, fast fading and slow fading, various noise interferences and ICIs ( intercode interferences) in multipath transmission channel.
在无线通信系统中，存在着严重的频率选择性衰落、快衰落和慢衰落，以及各种噪声的干扰和多径传播下的码间串扰等问题。 - The tapped delay model of the multi-path frequency selective fading channels as well as the diversity receiver technique is introduced, and the principles of RAKE receiver are described.
本文首先讨论了移动通信信道的各种参数对信道估计的影响，介绍了频率选择性信道的抽头延迟线模型和分集接收技术，在此基础上阐述了RAKE接收机的原理。 - Two new space-time schemes of the time selective fading channels is proposed.
对时间选择性信道下已提出的空时编码方案作了分析研究，并提出了两种新的编码结构。 - The channel estimation for Turbo coded Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing ( MIMO-OFDM) systems in frequency selective fading channels is studied.
该文对频率选择性衰落信道条件下的Turbo编码多入多出正交频分复用（MIMO-OFDM）系统的信道估计进行了研究，提出了一种将Turbo迭代译码与EM迭代信道估计相结合的方法。 - However, multi-antenna and multi-code transmission in frequency selective fading channel results in severely co-channel interference and inter-code interference.
然而，频率选择性衰落信道下多天线和多码扩频传输会产生严重的码间干扰和共信道间干扰。 - On the capacity of MIMO systems in frequency selective fading environments
频率选择性衰落环境中MIMO系统信道容量研究 - Due to the increase of data-rate, multi-path effect gives rise to frequency selective fading of wireless channel.
由于数据率的提高，多径效应导致了无线信道的频率选择性衰落。 - The Influences of Frequency Selective Fading on BER Performance of QPSK Systems
频率选择性衰落对QPSK系统误码性能的影响 - MC-CDMA Detection Techniques in Frequency Selective Fading Channels
频率选择性衰落信道中MC-CDMA信号检测技术 - MIMO-OFDM takes the advantage of MIMO in improving spectrum efficiency and has the OFDM resistance frequency selective fading.
MIMO-OFDM既利用了MIMO技术提高系统频谱利用率的优势，又具备了OFDM抵抗频率选择性衰落的优点。 - In the broadBand wireless communication, due to the presence of multipath transmission, cause frequency selective fading, thereby causing serious influence on the reliability of the communications.
在宽带无线通信中，由于多径传输的存在，引起了频率选择性衰落，进而对通信的可靠性造成了严重的影响。 - Orthogonal Frequency Division Multiplexing ( OFDM) becomes the core technology of fourth-generation mobile communication system, which has strong capacity of anti-multipath spread and frequency selective fading.
『正交频分复用（OFDM）技术具有很强的抗多径传播和频率选择性衰落能力，成为了第四代移动通信系统的核心技术。 - We proposed a joint space-time diversity receiving method for DS-CDMA system to solve the problem of the space-time processing of the direct sequence spread spectrum ( DSSS) signals in the frequency selective fading channel.
本文针对DS-CDMA系统，提出了一种直接序列扩频信号的空时二维联合分集接收方法，有效地解决了频率选择性衰落信道下直扩信号的空域和时域的联合接收处理问题。 - OFDM as well as multi-channel-coding and multi-modulation is adopted by DRM. This combine with interleaving and error protection to decrease the effect of frequency selective fading, multi-path time delay and Doppler effect. Then the robustness of the signal transmitted is enhanced.
DRM采用OFDM调制方式和多级信道编码，使用交织、差错保护技术，大大地减轻了频率选择性衰落、多径时延以及多普勒效应的影响，提高了信号传输质量和稳定性。 - We study channel estimation algorithms for MIMO-OFDM systems over doubly selective fading channels.
本文研究了MIMO-OFDM系统在双选择性衰落信道下的信道估计算法。 - Orthogonal Frequency Division Multiplexing ( OFDM) can divide a frequency selective fading channel into a number of parallel flat fading channels. This technology can overcome the adverse of multi-path effects, and achieves high spectral efficiency.
正交频分复用（OFDM）技术可以将频率选择性衰落信道划分为多个并行的平坦衰落信道，有效地克服了多径带来的不利影响，并且具有很高的频谱利用率。 - Although the whole bandwidth may subject to frequency selective fading, each sub-band undergoes flat fading.
虽然整个频带上可能遭受频率选择性衰落，但是在每一个子带上可被看作是平坦性衰落。 - Orthogonal Frequency Division Multiplexing ( OFDM) is robust to frequency selective fading and can achieve high spectral efficiency.
正交频分复用（OFDM）系统能够有效的对抗多径衰落并具有较高的频谱资源利用率。 - Also, new expression of SER of MQAM in frequency selective fading channel with RAKE combining is obtained, and throughput performance adaptive MQAM with RAKE receiver in multipath Rayleigh fading channel is analyzed.
本文还得到了MQAM在频率选择性衰落信道中采用RAKE合并新的误码率表达式，并对采用RAKE接收的自适应MQAM在多径瑞利衰落信道中吞吐量性能进行分析。 - Simulation results showed how frequency selective fading affected the transited signals.
仿真说明了无线信道的频率选择性对信号传输的影响。 - MIMO technique can be used more efficiently combined with OFDM/ SC-FDE in multipath frequency selective fading channel.
通过MIMO技术与OFDM/SC-FDE技术结合，可以使得MIMO技术更方便的应用于频率选择性衰落的多径信道中。