高斯信道

系统建模仿真是按照DAB模式I的基带调制器参数设计以及数字变频芯片的结构来进行的，在完成频带参数设计的同时，仿真研究了在高斯信道下和典型多径信道下系统的性能；

In the simulation step , do research in the system simulation according to the parameters of mode I of DAB for baseband and digital frequence converter for IF . Then , do research in the system performance simulation under channel of the AWGN and multipath .

简要分析了该接收机的接收原理，以及加性白高斯信道中的接收性能，并以4路并行滤波为例，对该接收机的接收性能进行了计算机仿真。

The principle and the performance of the receiver in AWGN channel have also been analyzed .

使用Matlab语言编制主程序，C语言编写了部分子程序，采用高斯信道和瑞利信道对卫星通信系统进行了仿真实验。

The main program is designed by Matlab language , others by C language . The simulation experiments are made in the Gaussian and Rayleigh channel .

本文在高斯信道和瑞利平坦衰落信道条件下对对数域最大后验概率（logMAP）解码算法进行了研究和修改，使之适合这2种信道和高阶调制方案。

Through careful studying the log-MAP algorithm , some modifications are made to fit in with Gaussian channel , flat Rayleigh fading channel and the MQAM modulation technique .

文中对高斯信道和瑞利信道条件下的PN匹配滤波器的捕获性能进行了分析。

The acquisition performance of the PN matched filter is analysed under the condition of Gaussian channel and Rayleigh channel .

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。

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

Turbo码是一种优秀的前向纠错码，其纠错能力，在高斯信道中接近信道极限。

Turbo codes are a class of forward error correction codes that offer energy efficiencies to the limits predicted by information theory .

分析了距离谱和交织器结构对Turbo码性能的影响，介绍了高斯信道中一种新的Turbo码设计方法。

This paper analyzed the distance spectrum and structure of interleaver on the performance of turbo codes , introduced a new turbo code design method for Gaussian channel .

同时，在Matlab环境下构建了解调软件平台，实现了多天线信号的完整解调功能，并分别搭建了高斯信道和衰落信道下的实验环境，对解调软件进行测试。

After that , demodulation software platform is constructed in Matlab environment , achieving complete demodulation functions . At the same time experimental environment of Gaussian channel and fading channel have been built for testing demodulation software .

该文提出了一种新的用似然值概率密度演变来为高斯信道下的速率可变穿刺Turbo码（RCPT）选择最优穿刺矩阵的方法。

A new algorithm for searching the optimal puncture matrices of the rate compatible punctured Turbo ( RCPT ) codes is proposed .

本文主要研究的是OFDM信号检测方法，目前大多数的研究都集中在高斯信道环境下，而基于瑞利衰落信道下的信号检测方法少且效果不理想。

This paper focuses on the OFDM signal detection methods , but most studies have focused Gaussian channel environment , and the researches under Rayleigh fading channel environment are little rare and the effects are not well .

本文将普遍用于带限高斯信道的格码调制技术引人脉冲时间扩展激光PPM信道，给出了改善通信性能的新方法。

We introduce the trellis coded modulation technique which is generally used in band-limited Gaussian channels to the stretched pulse PPM optical channels , hence give a new approach to improve the communication performance .

研究了高斯信道、瑞利信道和UWB信道下的符号同步方法，并详细分析了瑞利信道和UWB信道下接收信号的能量分布特性。

The synchronization schemes in Gaussian channel , Rayleigh channel and UWB channel are investigated . Average power distribution of the received signal in Rayleigh channel and UWB channel is analysed detailedly in order that symbol synchronizes accurately .

在白、高斯信道中宽带MSK最佳检测系统对连续波干扰频率选择性类似于MSK信号调制的谱形状。

The same is true when CW interference with frequency in the wide band optimum detection system bears a good resemblance to that of the spectral density of MSK signal .

仿真结果表明：IRA码的性能优于RS码、Turbo码等，而且x平方律信道的性能优于高斯信道。

Simulation results show the performance of IRA outperforms that of RS codes and Turbo codes in fiber communication system . The decoder based on Chi-square also has better performance than that of the decoder based on Gaussian noise assumptions .

之后本文深入研究了GMSK的调制解调算法，分别对GMSK非相干解调算法在高斯信道、衰落信道以及有频偏环境中的性能进行了分析和仿真。

Then the paper studies the GMSK modulation and demodulation algorithm , including the noncoherent demodulation algorithm in the Gaussian channel and fading channel and the effect of frequency offset .

在对解调关键技术研究的基础上，分别在高斯信道和衰落信道下设计了多天线信号的高阶QAM解调方案，并对方案的可行性进行了仿真分析与验证。

Based on the research of key technologies , the demodulation scheme is designed for multi-antenna signals in Gaussian channel and fading channel respectively . Then the feasibility of the scheme is analyzed and verified .

新方法有精度高和估计范围大的优点，同时在高斯信道、噪声信道和多径信道（Raleigh）下的仿真验证了算法的有效性。

Precise estimation and a large estimation range can be obtained . Simulations in Additive White Gaussion Noise ( AWGN ) and Raleigh channel show validity of the proposed algorithm .

通过仿真表明，这种低复杂度的TTCM迭代均衡译码系统的性能可接近于高斯信道下TTCM系统的性能。

Computer simulation results show that the novel low-complexity receiver on the fading channel can achieve comparable performance with TTCM on the Gaussian channel with coding .

而现有的研究集中对长循环前缀的OFDM信号，在理想高斯信道环境条件下，用相关算法来识别OFDM信号，并且在低信噪比条件下识别率不高，不能满足实际应用的需要。

Existing research focus on the long cyclic prefix OFDM signal , identify the OFDM signal with a correlation algorithm in ideal Gaussian channel conditions , and the recognition rate is not high under the condition of low SNR , it can not meet the needs of practical applications .

本文提出用x平方律分布模型代替高斯信道模型，并将高性能的不规则重复累积（IRA）码应用于远程光纤通信系统。

In this paper , we use Chi-square distribution instead of Gaussian distribution as the model of ASE noise . Irregular repeat accumulate ( IRA ) codes have high performance very closed to Shannon limit . We apply IRA codes to the long haul fiber communication system .

推导了理想高斯信道下信号幅度估计的克拉美罗界（CRB），提出了一种基于直接判决反馈的BPSKQPSK信号幅度估计算法，并对该算法的性能进行了理论分析和仿真。

After the derivation of Cramer Rao Bound ( CRB ) for amplitude estimation in AWGN channel , a decision directed feedback amplitude estimation algorithm for BPSK / QPSK signal is proposed , followed by its performance analysis and simulation .

通过分析信号的特性及其在高斯信道中传播的特点，对Euclidean矩和比特误码率进行具体的仿真分析，最后给出了二维超宽带通信信号的设计公式。

This paper , analyzes the Euclidean distance and bit error rate , formulating the signal design for binary UWB communications taking into consideration the particular characteristics of UWB propagation in a Gaussian channel . Lastly , a design formula of two dimensional UWB signal is given .

非高斯信道中信号与干扰的匹配

Adaptation of Signal Process to Noise in Non & Gaussian Channel

研究了各种各样的高斯信道的保真度的变化规律。

We study the mechanism of the fidelity of various Gaussian channels .

一种弱相关非高斯信道下的伪码捕获方法

Pseudonoise-code acquisition method in weakly dependent non-Gaussian impulsive channels

仿真了高斯信道下系统的通信误码率和测向精度。

The performances of bit error rate and direction-finding through Gaussian channel are investigated .

非高斯信道下的非线性空时多用户检测器

Nonlinear Space-time Multiuser Detector Based on Non-Gaussian Channels

高斯信道超宽带通信信号设计

Signal design of ultra-wide-band communication in Gaussian channel

非高斯信道中传信率的计算分析

An Investigation on Transinformation in Non-Gaussian Channels