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Description: 对分组码的chase2译码算法比较与硬判决，未编码情况下的提高了误码率增加了编码增益-right to a code decoding algorithm chase2 compared with the hard decision, no coding of the increased bit error rate increased coding gain
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Size: 3072 |
Author: 刘德庆 |
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Description: 4个不同信道环境下误码率的分析，基于信噪比SNR的，通信方面-four different channel bit error rate environment analysis, based on the SNR, communications
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Size: 16384 |
Author: 始发地 |
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Description: 提高卫星通信信道传输效率的新途径本 文 结 合 V SAT卫星通信系统设计中涉及卫星通信传输技术极为重要的
信道编码与调制解调方式，探讨了各种新型的卫星信道编码与调制解调技术，
它们的原理及在卫星通信中的应用。在数字调制中，信号传输质量主要取决于
比特差错率BER (Bit Error Rate)，因此要尽可能采用相同的每比特信号能量与
噪声功率谱密度比(Eb/N.)的条件下，BER低的调制方式，以节省卫星功率
另外频带利用率要尽可能的高，以节省宝贵的卫星频带。本文还对各种不同的
差错编码与调制技术进行了实验和详细的性能比较。-improve satellite communications channel transmission efficiency of new ways this paper V SAT satellite communications system design involving Wei Star Communication Technology extremely important channel coding and modulation and demodulation, explore a variety of new satellite channel coding and modulation and demodulation techniques, their principles and satellite communications applications. Digital modulation, signal transmission depends on the quality of the main bit error rate BER (Bit Error Rate). therefore possible to use the same energy per bit signal with noise power spectral density ratio (Eb/N.), under the condition BER low modulation mode to save power satellite bandwidth utilization addition to the possible high to save valuable satellite frequency bands. This paper is als
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Size: 3829760 |
Author: 亮仔 |
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Description: 一个OFDM系统的仿真程序,可看出信噪比与误码率之间的关系.-an OFDM system simulation program, we can see the signal-to-noise ratio and bit error rate of the relations between them.
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Size: 1024 |
Author: huang |
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Description: 有关于OFDM在不同信噪比下的误比特率，大家可以看看啊-on OFDM different signal-to-noise ratio in the bit error rate, we can see ah
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Size: 3072 |
Author: fancyou |
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Description: ofdm仿真器，外部功能。输入发射天线数和接收天线数，输出信噪比、误比特率-ofdm simulator, the external function. Importation fired several antennas and receiving antennas few, and the output signal-to-noise ratio, bit error rate
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Size: 1024 |
Author: luoyanqun |
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Description: 误码率计算程序，可以实现简单的误码率计算。对初学者有用-bit error rate calculation program, can achieve a simple error rate. Useful for beginners
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Size: 2048 |
Author: 郭志 |
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Description: 本文主要研究了W-WAN中GPRS网络的移动视频传输问题。文中探讨了GPRS的网络结构、协议体系以及链路特性，从中我们看出：
GPRS网络链路不仅具有一般无线链路数据传输中遇到的延迟大、误码率高等共性问题，而且具有移动通信系统采用蜂窝频率复用方式带来的小区切换，
以及由于通信中链路性能随着地理位置变换而变化造成的GPRS网络中不可避免的经常性遭遇的冗长时延和突变时延。
这使得目前GPRS网络中使用的传统TCP或UDP传输协议均不能适应GPRS自身的链路特性，也不能实现高效的分组传输。-This paper mainly studied the W-WAN in the GPRS network for mobile video transmission problems. The article discusses the GPRS network architecture, protocol architecture, as well as link characteristics, from which we can see: GPRS network link not only has the general wireless link data transmission delay encountered in large, common problems of higher bit error rate, and with mobile communications system uses a cellular frequency reuse methods brought about by cell switching, as well as the communication link performance with the location change and change is inevitable GPRS network, the recurrent encountered lengthy delay and delay mutation. This makes the current GPRS network using the traditional TCP or UDP transport protocol are unable to adapt its own GPRS link characteristics, but also efficient packet transmission can not be achieved.
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Size: 3594240 |
Author: QHLee |
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Description: 在matlab下实现多径信道仿真，计算误比特率-Matlab achieved in multi-path channel emulation, bit error rate calculation
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Size: 5120 |
Author: 朱振华 |
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Description: This program includes:
[5 7] convolutional code (encoder) + BPSK + AWGN + MAP (decoder). It evaluates Bit Error Rate and plots it versus SNR(signal to Noise Ratio).
-This program includes:
[5 7] convolutional code (encoder)+ BPSK+ AWGN+ MAP (decoder). It evaluates Bit Error Rate and plots it versus SNR(signal to Noise Ratio).
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Size: 1024 |
Author: 阳关 |
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Description: 利用STDM方法嵌入水印信息，可设置量化步长，选择各种经典的攻击方式，控制攻击强弱，返回误码率和峰值信噪比-Stdm method using embedded watermark information, to set the quantization step size, choose a variety of classic attacks, controlling the strength of the attack and returned to the bit error rate and peak signal to noise ratio
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Size: 56320 |
Author: 张湛 |
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Description: 准确的通信工程里的BFSK调制方式的性能仿真。给出了误码率和信噪比等参数。-Accurate communication engineering in the BFSK modulation of performance simulation. Given bit error rate and signal to noise ratio and other parameters.
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Size: 13312 |
Author: 黄姗姗 |
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Description: 用matlab对M=8的PSK系统进行蒙特卡罗仿真，分析其误码率-Using matlab for M = 8 the PSK system Monte Carlo simulation, to analyze the bit error rate
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Size: 3072 |
Author: wuyinkui |
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Description: 用MATLAB对单载波频域均衡进行仿真，并绘制出误码率仿真的结果。-Using MATLAB on a single carrier frequency domain equalization simulation, and to map out the bit error rate simulation results.
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Size: 2048 |
Author: huanglixun |
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Description: QPSK调制下在AWGN和Rayleigh衰落信道下的仿真以及误码率计算，包含完整的报告说明-QPSK modulation in AWGN and Rayleigh fading channel simulation, as well as bit error rate calculation, the report contains a complete description
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Size: 611328 |
Author: chongge |
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Description: 信号在信道进行传输时，经常会出现串扰，采用基于最大似然序列估计（MLSE）的电子色散均衡器的方法，克服光纤通信中的由各种色散引起的码间干扰。
研究基于最大似然序列估计（MLSE）的均衡器，采用维特比算法实现，用matlab仿真出采用MLSE后的性能指标（眼图和误码率）的提升。
-Signal transmission channel often occur crosstalk, based on the maximum likelihood sequence estimation (MLSE) electronic dispersion equalizer of the ways to overcome optical fiber communications in a variety of dispersion caused by the inter-symbol interference. Research based on the maximum likelihood sequence estimation (MLSE) of the equalizer, the Viterbi algorithm, a simulation using matlab after using MLSE performance indicators (eye diagram and bit error rate) of the upgrade.
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Size: 9216 |
Author: Lee |
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Description: Matlab is an ideal tool for simulating digital communications systems, thanks to
its easy scripting language and excellent data visualization capabilities. One of the
most frequent simulation tasks in the field of digital communications is bit-error-
rate testing of modems. The bit-error-rate performance of a receiver is a figure of
merit that allows different designs to be compared in a fair manner. Performing
bit-error-rate testing withMatlab is very simple, but does require some prerequisite
knowledge
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Size: 63488 |
Author: 宋 |
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Description: matlab仿真ofdm系统以及误码率分析-matlab simulation of OFDM systems, as well as bit error rate analysis
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Size: 1024 |
Author: 杨公弼 |
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Description: 这个源码能够对ofdm系统进行仿真，得出仿真结果，计算误码率-This source can OFDM system simulation, simulation results obtained to calculate the bit error rate
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Size: 9216 |
Author: zhangqi |
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Description: ofdm整个系统的详细仿真，内含误码率计算，输入输出信号频谱比较，星座点的分布-OFDM detailed simulation of the entire system, including bit error rate calculation, input and output signal spectrum of comparison, the distribution of constellation points
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Size: 12288 |
Author: jackie |
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