However, it is optimal in AWGN channels but not optimal in fading channels.

但是虽然它在AWGN信道下是最优的，在衰落信道却不然。

Digital Communication project, QPSK over AWGN and Rayliegh Multipath Effects.

数字通信工程，对AWGN和瑞利多径效应调制。

This is the AWGN Channel 4 phase shift keying modulation, as well as its perf...

这是在AWGN信道下四相键控调制，以及其性能分析。

In AWGN channel, this paper gives the Shannon limit analysis of BFSK coherent detection.

本文还对BFSK信号相干检测在AWGN信道模型下的香农限进行了分析。

The interference is often supposed to be AWGN, while in some cases it is not reasonable supposition.

通常假设干扰为加性高斯白噪声，但有些情况下这种假设并不合理。

The study shows that the algorithm can complete frequency offset tracking in AWGN channel and multipath fading channel.

研究表明，该算法既能在AWGN信道中也能在多径衰落信道中完成频偏跟踪工作。

Its performances in the additive white Gaussian noise (AWGN) channel and the dispersive channel are investigated, respectively.

本文分别在高斯白噪信道和色散信道中研究了它的性能。

But both of them are sensitive to carrier frequency shift, further, they have comparative BER under AWGN and Doppler shift environment.

但两者都对载波频率偏移敏感，且在AWGN和多普勒频移环境下表现相当。

Their performance is compared with that of binary LDPC codes with same coding rates over AWGN channel by BPSK modulation and 8psk modulation.

同时，与等价编码速率的二进制ld P C码进行了性能比较，分析了多进制ldpc码的纠错性能和译码复杂度。

LS algorithm and DFT-based algorithm were studied and signal-to-noise estimation algorithms in AWGN channel were introduced to SC-FDE systems.

研究了LS算法及其DFT改进算法，并将高斯白噪声信道中的信噪比估计方法引入到单载波频域均衡系统中。

As some examples, the results of some TCM signal sequence on additive Gaussian white noise (AWGN) channel and fading channels have been presented.

作为实例，给出了高斯信道和衰落信道上的一些TCM信号序列的自由空间距离的计算结果。

An improved fractal image denoising algorithm for removing additive white Gaussian noise (AWGN) was presented by adopting quadratic gray-level function.

提出了一种针对加性白高斯噪声(AWGN)的改进分形图像去噪方法。

The structure of receiver in typical modulation Impulse Radio Ultra Wide Band (IR-UWB) is discussed, and the best IR-UWB receiver on AWGN cannels is given.

在分析AWGN信道特性的基础上，通过研究典型调制方式下的超宽带冲激无线电信号(IR - UWB)的接收机结构，找到了一种IR - UWB最佳接收机。

This adaptive channel tracking method can overcome deep attenuation and AWGN noises effectively due to several blocks of symbol are considered simultaneously.

这种方法由于在信道跟踪时，同时利用了多个块符号的信息，可以有效克服噪声和深衰落的影响。

The blind estimation algorithm of Doppler frequency suitable for telemetry systems involving additional white Gaussian noise (AWGN) channels is proposed in this paper.

提出一种适应于在加性高斯白噪声信道(AWGN)下遥测系统的多普勒频偏盲估计算法。

The performance of time hopping pulse position modulation (TH-PPM) UWB system using this wavelet monocycle was studied under additive white Gaussian noise (AWGN) channel.

同时还研究了在加性高斯白噪声(AWGN)信道中，跳时扩频脉位调制(TH PPM)的UWB系统中使用该窄脉冲的系统性能。

In this paper, we give the simulation results of bit error rate based on group counterchange method for BCH codes in UWB communication system in the condition of AWGN channel.

本文给出了群变换方法构成的BCH编码在超宽带通信系统中的误码率仿真结果。

The algorithm of residual frequency estimation is detailed, and simulation results verify the proposal algorithm with good performances in both AWGN and multipath fading channel.

最后着重分析了残留频偏的估计算法，分别在AWGN信道下和多径衰落信道下仿真，结果表明所提算法均有良好的性能。

A presence detection algorithm based on the estimation of cyclic frequency for Phase Shift-Keying (PSK) signals in additive white Gaussian noise (AWGN) is proposed in this paper.

根据信号的循环平稳特性，本文提出一种加性高斯白噪声信道中基于循环频率估计的PS K信号存在性检测算法。

The result presents that when LAS-CDMA system using 16QAM modulation under AWGN channel, the error probability of sphere decoding goes to theory error probability of ML algorithm.

介绍了球译码算法的工作原理，给出了算法流程；研究结果表明AWGN信道下LAS-CDMA系统使用16QAM调制时，球译码算法差错率趋近于使用基于ML算法的理论差错概率。

The average throughput expressions of the six Bluetooth ACL packets in AWGN are derived in my thesis, it shows different packets have maximum throughput at different values of SNR.

本文推导出在AWGN信道中的六种蓝牙ACL分组平均吞吐量的表达式，它表明了在不同的SNR值时，不同的分组有最大的吞吐量。

According to different channel models, CDMA systems can be divided into additive white gaussian noise (AWGN) channel and dispersive channel, time-variant and time-invariant channel.

CD MA系统按信道模型的不同分为高斯白噪声信道和衰落信道、时变和时不变信道。

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，系统性能均有显著改进，并能有效克服GMSK信号所固有的严重符号间串扰ISI。

Single user and multi-user BER performances of interleaved OFDM-based TDCS are also investigated in the AWGN channel. The approximate BER formula and BER lower bound formula are derived.

根据基于交织OFDM的TDCS模型，本文接着分析了其在AWGN信道中，单用户和多用户情况下的BER性能，得到了近似的BER公式。

In this paper, the optimization of the transmitted signal energy for a data packet unit in UWB radio communications in additive white Gaussian noise(AWGN) channel is firstly investigated.

首次研究白高斯噪声（AWGN）信道下超宽带无线电通信系统中单个数据包单元发射信号能量的优化。