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Description: cp0801_pathloss为UWB信道损耗计算函数，利用a=(c/(d^gamma))计算出信道增益，然后对函数的输入信号幅度进行变换得到输出结果。
cp0801_Gnoise1和cp0801_Gnoise2为产生AWGN的函数，分别为Eb/No和Ex/No条件下AWGN的产生-cp0801_pathloss for UWB channel depletion calculation function, use a = (c / (d ^ gamma)) calculated Channel Gain, then the function of the input signal range for transform output. Cp0801_Gnoise1 and AWGN cp0801_Gnoise2 to generate the function, for Eb / No and Ex / No conditions for the selection of AWGN
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Size: 1739 |
Author: 贾凯 |
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Description: Power Allocationin a Transmit Diversity System with Mean Channel Gain Information
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Size: 415831 |
Author: zy |
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Description: cp0801_pathloss为UWB信道损耗计算函数，利用a=(c/(d^gamma))计算出信道增益，然后对函数的输入信号幅度进行变换得到输出结果。
cp0801_Gnoise1和cp0801_Gnoise2为产生AWGN的函数，分别为Eb/No和Ex/No条件下AWGN的产生-cp0801_pathloss for UWB channel depletion calculation function, use a = (c/(d ^ gamma)) calculated Channel Gain, then the function of the input signal range for transform output. Cp0801_Gnoise1 and AWGN cp0801_Gnoise2 to generate the function, for Eb/No and Ex/No conditions for the selection of AWGN
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Size: 1024 |
Author: 贾凯 |
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Description: 简单混合衰落信道
This mfile inputs an unmodulated sinewave through a simple Rayleigh two path fading channel and shows the output with phase, gain, and attenuation characteristics via animation.
-simple mixed fading channel This mfile inputs an unmodulated sinewave through a simple two path Rayleigh fading channel and shows the output with phase, gain, and attenuation characteristics via animation.
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Size: 1024 |
Author: 李继泉 |
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Description: 信号经过两个独立的信道传输，两个信道的信道复增益分别为 和 。 是独立同分布的复高斯随机变量，实部虚部独立、均值为0，实部虚部的方差都是1。采用某分集技术后输出的信噪比为 ，其中 是常数， 是在 之间均匀分布的随机变量。请就不同的 、 ，用仿真的方法画出 的累积分布函数。-signal after two independent Channel Tunnel, Channel 2 Channel Minute respectively, and gain. Independence is the same complex Gaussian distribution of random variables, is the imaginary part of the Department of independence, mean 0 and the real part of the imaginary part is a variance. Using a diversity of the output signal-to-noise, which is constant, is the uniform distribution between random variables. Please different, and simulation methods paint the cumulative distribution function.
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Author: 昭 |
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Description: 硕士学位论文:LDPC码在瑞利衰落信道中的性能分析
信道编码技术可以带来编码增益，节省宝贵的功率资源，己经成为现代数字
通信系统中必不可少的关键技术。LDPC码采用低复杂度的迭代译码算法，且具有
逼近香农限的性能.由于LDPC码具有诸多优点，它在信息可靠传输中的良好应
用前景己经引起学术界和rr业界的高度重视，成为当今信道编码领域最受瞩目的
研究热点之一。
本文主要探讨了LDPC码在瑞利衰落信道中的性能，基于LDPC码的分组空
时码系统，以及基于LDPC码的正交频分复用系统.-master's degree thesis : LDPC codes in Rayleigh fading channels Performance Analysis channel coding technology can bring coding gain, Power saving valuable resources have become modern digital communication systems essential to the critical technologies. LDPC low complexity of the iterative decoding algorithm, having approximation Shannon limit performance. Because LDPC has many advantages, It reliable transmission of information in the application of good prospects has been caused rr academia and industry are taking, become the channel coding areas of the most watched one of the hot spots. This paper mainly discusses the LDPC Rayleigh fading channels in the performance Based on LDPC a space-time coding system, and based on LDPC orthogonal frequency division multiplexing system.
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Author: daniel |
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Description: 本实验讲述了与多通道缓冲串口（McBSP）相关的寄存器的含义，并通过在DSP系统中实现音频扩放系统的自动增益控制（AGC）算法这个例子了解多通道缓冲串口的应用。-about this experiment with multi-channel buffer serial port (McBSP) related to the meaning of the Register, and through the DSP Audio System to expand the system up Automatic Gain Control (AGC) is the example to learn more links Road buffer serial applications.
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Size: 61440 |
Author: tian |
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Description: 格状编码调制是为解决卫星通信中信道噪声对接收的影响及带宽的限制而产生的，其将信道编码与调制很好的结合起来，并且能发挥各自的优点，这种方法在不增加带宽和相同的信息速率下可获得3~6dB的功率增益。-trellis coded modulation for satellite communications solutions Channel noise on the receiver bandwidth and the impact of the restrictions, it will channel coding and modulation good combine, and can play to their respective advantages, This method does not increase in the same bandwidth and speed of information available under the three-6dB gain power.
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Size: 7168 |
Author: GF |
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Description: Power Allocationin a Transmit Diversity System with Mean Channel Gain Information
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Size: 415744 |
Author: zy |
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Description: LCD12864显示 便携式 电池,压力,电流三输入表 单次读数 1240E 各通道增益不同 非线性自校准,
x5165分配:0-0708H ( 25组计量数据 ) 校准 07d8h--07ec (21单元分区)对应C8-dbh
组数07f0-07f1H 计量开关07f2H (不清除), 数据格式07F3H 读电流零值0f74h-07f6h
压力自动量程编号 < > 键显示电池/量程, 按 "+" ＂-＂键电流清零
2006.2.21 增加即时通讯-Showing LCD12864 portable battery, pressure, current three-times reading 1240E input form the channel gain of different non-linear self-calibration, x5165 distribution :0-0708H (25 group of measurement data) calibration 07d8h 07ec (21 unit district) the corresponding C8-dbh Group 07f0-07f1H number of measurement switch 07f2H (not clear), data formats 07F3H read current zero pressure automatically 0f74h-07f6h number range
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Size: 27648 |
Author: 我是好猫 |
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Description: 设计一个四用户的扩频通信系统，扩频增益为N=16，采用Walsh码进行直接序列扩频，BPSK调制，无线信道为AWGN信道。在接收端进行解扩，解调，判决，通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。-Designed a four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modulation, AWGN channel for the wireless channel. At the receiving end for despreading, demodulation, judgments, through the simulation to be one of a user' s bit error rate and SNR of the simulation results.
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Size: 5120 |
Author: 杨世斌 |
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Description: Script for computing the BER for BPSK modulation in a
Rayleigh fading channel with equal gain combining
-Script for computing the BER for BPSK modulation in a
Rayleigh fading channel with equal gain combining
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Size: 1024 |
Author: mohanad1 |
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Description: This the simulink file that demonstrates the fundametal principle of operation behind asynchronous CDMA systems using Welsh codes. The system performance can be evaluated by changing the processing gain at the transmitter and by increasing or decreasing the SNR of the channel.-This is the simulink file that demonstrates the fundametal principle of operation behind asynchronous CDMA systems using Welsh codes. The system performance can be evaluated by changing the processing gain at the transmitter and by increasing or decreasing the SNR of the channel.
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Size: 6144 |
Author: Rafal |
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Description: 音频处理芯片uda1341内核驱动源码、利用声卡上的DSP设备进行声音录制和回放的基本框架、利用混音器框架对各种混音通道的增益进行调节、Linux下的OSS音频接口编程-Audio processing chip uda1341 kernel driver source code, using the sound card' s DSP sound recording and playback equipment for the basic framework, using the framework of a variety of mixing mixer channel gain adjust, Linux programming under the OSS audio interface
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Author: 刘冉 |
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Description: 通过MATLAB软件；通过仿真得出性能曲线；从而比较bpsk的性能-The bit-error rate (BER) of binary phase-shift keying
in Rayleigh fading, using the Alamouti transmission scheme and
receiver selection diversity in the presence of channel-estimation
error, is studied. Closed-form expressions for the BER of log-likelihood
ratio selection, signal-to-noise ratio (SNR) selection, switchand-
stay combining selection, and maximum ratio combining are
derived in terms of the SNR and the cross-correlation coefficient
of the channel gain and its corrupted estimate. Two new selection
schemes, space–time sum-of-squares combining selection diversity
and space–time sum-of-magnitudes selection diversity, are
proposed and proven to provide almost the same performance as
SNR selection, but with much simpler implementations. The effects
of channel-
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Size: 340992 |
Author: 刘小洋 |
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Description: 使用Jakes所假设的模型，用来产生信道抽头延迟线模型中的抽头增益过程所需的多普勒频谱成形滤波器有多种实现方法。时域FIR滤波器是最常用的一种实现方法。-Assumed the use of Jakes model, used to generate the channel-tap-tap delay line model of the process gain the necessary Doppler spectrum shaping filter has a variety of implementations. Time domain FIR filter is an implementation of the most commonly used method.
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Author: wengfh |
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Description: 码主要由两条指令组成：第一个，利用式（4-2-3）计算信道增益；第二个，通过数组相乘对输入信号幅度进行尺度变换。-Code composed mainly of two instructions: the first one, using equation (4-2-3) Calculate the channel gain second, multiplied by an array of input signal amplitude scaling.
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Size: 1024 |
Author: eunice |
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Description: This report discusses the analys of Channel gain matrix to extract all channel informations like frequency reponse, impulse response, power delay profile, correlation bandwidth ets along with the matlab code
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Size: 2852864 |
Author: mirza |
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Description: 建立一个多径瑞利信道，与信道分解代码一起构成完整的信道矩阵，可直接作为信道增益矩阵-a rayleigh channel metric is proposed,together with the SVD decomposition ,it can be directly used as a channel gain metric
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Size: 1024 |
Author: bonny |
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Description: MATLAB Codes for Calculate the line of sight Channel Gain-MATLAB Codes for Calculate the line of sight Channel Gain
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Size: 1024 |
Author: emad |
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