英汉例句

• In this paper, we propose a diagonal space-frequency (DSF) block codes over frequency-selective Rayleigh fading channels and study performance of the code.

  本文提出了频率选择性瑞利衰落信道中的对角空频分组码(DSF)，研究了码的性能。

• This paper presents a blind algorithm to estimate the signal-to-noise ratio(SNR) of a communication signal in multipath Rayleigh fading channel .

  提出了一种在多径瑞利衰落信道中的信噪比盲估计算法。

• A data aided symbol timing estimation algorithm was proposed for burst-mode space-time trellis coded multi-level continuous phase modulation (STTC-MCPM) systems in Rayleigh fading channels.

  针对瑞利衰落信道中突发模式的空时网格编码的多电平连续相位调制(STTC - MCPM)系统，提出了一种基于数据辅助的符号定时估计算法。

• The space-time channel estimation and multiuser detection algorithm for the uplink of multicarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel were investigated.

  研究了频率选择性瑞利衰落信道中的同步MC-CDMA系统上行链路空时信道估计及多用户检测算法。

• In this paper, with Rayleigh fading the random characteristics of multipath time delay and Doppler shift in HF ionospheric channels is discussed.

  本文在瑞利衰落模型下，研究了高频电离层信道中多径时延与多普勒频移的随机特性。

• The simulation results presented prove that the performance of DFH system with signal detecting by sequence is much better than the conventional frequency hopped systems over Rayleigh fading channels.

  结果证实了，差分跳频通信技术和按序列检测方法的结合，使通信系统在瑞利衰落信道条件下的性能得到了比较显着的提升。

• Considering Rayleigh fading channel is random channel, noncoherent detection is used for channel estimation.

  考虑到瑞利衰落信道为随机信道，用非相干检测对信道进行估计。

• The simulation of error bit rate performance for multi -channel and frequency -selective Rayleigh fading is carried out, and the simulation results show that the system is.

  对在多用户和频率选择性瑞利衰落环境下的下行链路的误比特率性能进行了仿真，其结果表明系统是可行的。

• It is the first time to analyze the capacity and throughput performance of PRMA and its variations under cellular environment with Rayleigh fading channel.

  首次分析了在多小区瑞利衰落信道中PR MA类协议的容量及通量性能。

• Simulation results indicate that the proposed protocol can obtain higher throughput performance for slow Rayleigh fading and large round trip delay (t) channels.

  仿真结果表明对于慢瑞利衰落、长往返旅程延迟(T)信道，该协议能取得较优的吞吐性能。

• This paper investigates blind space-time interference suppression for MultiCarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel.

  该文研究在频率选择性瑞利衰落信道中MC-CDMA系统的盲空时干扰抑制。

• To improve the performance of the algorithm in the Rayleigh fading channel, amplitude weighted algorithm is adopted.

  为了提高算法在瑞利衰落信道下的性能，进一步采用了幅值加权的方法。

• Then mathematic model of multi-path Rayleigh fading channels are presented based on the discussion of mobile fading channel characteristics. At last, the simulation results and analysis are given.

  然后在分析移动信道衰落特性的基础上，分析了多径瑞利信道的数学模型，并对基于这种模型的各种信道估计性能进行了仿真分析。

• Time-selective Rayleigh fading of channels is caused by Doppler shift and carrier frequency offset.

  接收端的高速运动或者载频的偏移，会引起信道的时间选择性衰落。

• We did the simulation on both static and Rayleigh fading channels.

  我们的在静态以及瑞雷通道上模拟。

• We propose a MC-CDMA system based on the optimized multiband complex wavelet transform (MBCWT), investigate the system performance in multipath Rayleigh fading channel.

  提出一种基于优化多带复小波变换的MC-CDMA系统，研究了其在多径瑞利衰落下的性能。

• The constant modulus blind equalization technique is investigated over a slow Rayleigh fading ionospheric channels with additive white Gaussian noise.

  研究通过具有加性高斯白噪声的瑞利慢衰落电离层信道的恒模盲均衡技术。

• Space- time block codes are code technologies which provide a new paradigm for transmitting over Rayleigh fading channels using multiple antennas.

  空时编码是最近提出的使用多个天线应用于瑞利衰落信道的编码技术。

• In the receiver, successive interference cancellation is employed to remove or suppress sever multiuser interference, and this detector is easy to implement and apt to Rayleigh fading channel.

  接收端采用串行干扰抵消的方法去除或抑制很严重的多用户干扰，该方法实现简单，适合瑞利衰落信道。

• It is concluded that the multiuser detection is superior to conventional detections in the flat Rayleigh fading channels.

  结果表明，平坦瑞利衰落信道中多用户检测算法的性能仍然优于传统检测算法。

• Due to no channel estimation required for Rayleigh fading channel, quotient coded QAM has lower receiver complexity.

  商分编码QAM由于无需信道估计和均衡，因此降低了在瑞利衰落信道解调的复杂性。

• The performance of space-time channel coding scheme is discussed under a Rayleigh fading channel with spatially correlated fading amplitudes and an additive white Gaussian noise.

  主要研究了空时编码系统在相关瑞利衰落信道和高斯噪声环境下的性能。

• Simulation results show an evident improvement in AWGN and correlated Rayleigh fading channels. The severe intersymbol interference (ISI) of GMSK signals is also effectively suppressed.

  仿真结果表明，在AWGN加性高斯白噪声和相关瑞利衰落信道下，系统性能均有显着改进，并能有效克服GMSK信号所固有的严重符号间串扰ISI。