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[Communication-Mobile] yuanma2 DL : 0: 阵列信号处理中:四个输入信号,八单元均匀圆阵的波达方向估计和波束形成.应用Music方法-Array Signal Processing: four input signals, eight units of uniform circular array DOA estimation and beamforming. Applied Music Methods
Date : 2025-12-29 Size : 1kb User : 杨为
[Communication-Mobile] Quantization_simulink DL : 0: Quantization (signal processing) uniformly and non-uniformily using A and miu law od companding. simulation using simulink/matlab
Date : 2025-12-29 Size : 10kb User :
[Communication-Mobile] wirelesscomm DL : 0: In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly based on the representation of uniform quantizer by gain plus additive noise model. Based on this model, we derive the weight vector and the output signal-to-interference ratio (SIR) of the MMSE receiver. The effects of quantization on the MMSE receiver performance is characterized in a single parameter named 鈥漞quivalent noise variance鈥? The optimal quantizer stepsize which maximizes the MMSE receiver output SNR is also determined.-In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly based on the representation of uniform quantizer by gain plus additive noise model. Based on this model, we derive the weight vector and the output signal-to-interference ratio (SIR) of the MMSE receiver. The effects of quantization on the MMSE receiver performance is characterized in a single parameter named 鈥漞quivalent noise variance鈥? The optimal quantizer stepsize which maximizes the MMSE receiver output SNR is also determined.
Date : 2025-12-29 Size : 144kb User : prasad
[Communication-Mobile] codings DL : 0: Wireless links are often asymmetric due to heterogeneity in the transmission power of devices, non-uniform environmental noise, and other signal propagation phenomenon. Unfortunately, routing protocols for mobile ad hoc networks typically work well only in bidirectional networks.
Date : 2025-12-29 Size : 68kb User : sakthivel
[Communication-Mobile] PSKuniformFading DL : 0: PSK Uniform Fading using SNR and BER
Date : 2025-12-29 Size : 1kb User : Johnathan
[Communication-Mobile] pcm DL : 0: 脉冲编码调制(PCM)实现编程实现PCM技术的三个过程：采样、量化与编码。采样：低通连续信号采样，以 x=sin(200*t) m=x./(200*t) m=m.*m 为例说明低通采样定理，绘出信号时、频图形；带通连续信号采样，以x=sin(20*t) m=x./t 为例说明带通采样定理，绘出信号时、频图形。量化：均匀量化，以幅度的正弦信号为例实现为64级电平的均匀量化；非均匀量化，输入A律PCM编码器的正弦信号，采样序列为，将其进行PCM编码，给出编码器的输出码组序列编码：以上述信号为例，实现A律的13折线近似法及国际标准PCM对数A律量化编码。-Pulse code modulation (PCM) to achieve PCM technology programming three processes: sampling, quantization and coding. Sample: low-pass continuous signal sampling to x = sin (200* t) m = x./(200* t) m = m.* m an example low-pass sampling theorem, draw the signal, frequency graphics bandpass sampling continuous signals to x = sin (20* t) m = x./t an example bandpass sampling theorem, draw the signal, frequency graph. Quantization: uniform quantization, in order to realize the magnitude of sinusoidal signal as an example for the 64 level uniform quantization non-uniform quantization, input A law PCM encoder sine signal, the sampling sequence, to be PCM encoded, the encoder is given The output code sequence Code: A Case Study of the signal to achieve the 13 A line approximation law and international standards on the number of A law PCM coding quantization.
Date : 2025-12-29 Size : 2kb User : 马芳
[Communication-Mobile] random DL : 0: 产生符合一定分布的随机数的方法是，先产生(0，1)均匀分布的随机数，然后通过一个适当的变换方法得到所要求分布的随机数。常用的均匀分布伪随机序列发生器有线性同余发生器和线性反馈移位寄存器两种。-That meet certain distribution of the random number is first generated (0,1) uniformly distributed random number, then an appropriate transformation method requested by the distribution of random numbers. Uniform distribution commonly used pseudo-random sequence generator has a linear congruential generator and two linear feedback shift register.
Date : 2025-12-29 Size : 1kb User : wswfx
[Communication-Mobile] Advances_in_Direction_of_Arrival_Estimation DL : 0: 本书主要介绍了波束形成算法，非均匀线性天线阵列用于高斯检测估计，以及宽带信号的DOA估计，相干宽带DOA估计等-This book introduces the beamforming algorithm, non-uniform linear antenna array for the Gaussian detection estimate, and broadband signal DOA estimation, coherent broadband DOA estimation
Date : 2025-12-29 Size : 7.08mb User :
[Communication-Mobile] tongyuanshiyan DL : 0: 学通信原理的时候，自己写的A率13折线编码和均匀量化PCM系统的系统仿真-Learn communication theory when he wrote A uniform rate of 13 line coding and quantization PCM system simulation system
Date : 2025-12-29 Size : 2kb User : 王辉
[Communication-Mobile] Analysis-on-Channel-Capacity-of-MIMO DL : 0: 多输入多输出(MIMO)通信系统相比其他的通信系统具有更高的频谱效率，在不增加发射功率以及信号带宽的情况下，MIMO 技术可以有效地提高系统信道容量及其性能。利用均匀角能量分布以及相关矩阵，分析了相关信道下的MIMO 系统信道容量，得出了系统信道容量的通用公式，并利用MATLAB 进行仿真。仿真结果表明，相关性的增加意味着信噪比的减小，圆形接收天线阵列半径与角度扩展是决定MIMO 系统信道容量的主要因素。-Multiple-input multiple output (MIMO) communication architecture, as compared with conventional techniques, has even higher spectral efficiency, and MIMO technique could greatly improve channel capacity and performance of the system without any increase of transmitting power and bandwidth. By uniform angular distribution and the correlation matrix, the MIMO channel capacity in correlated channel is investigated. Numerical simulation is performed with MATLAB, thus to verify the proposed formula. Simulation result indicates that, for this model, the increase of correlation means the reduction of signal-to-noise ratio (SNR), and the circular receive antenna array radius or angle spread is the dominating factor for channel capacity.
Date : 2025-12-29 Size : 787kb User : 蜡笔
[Communication-Mobile] Pe_SNR DL : 0: 本次仿真研究多幅度电平信号误码率与信噪比之间的关系，系统框图如上。假设考虑8幅度电平，则根据流程首先需要用一个随机数发生器产生在(0,1)间的均匀随机数，然后将(0,1)区间均匀划分为(0,0.125)、(0.125,0.25)、(0.25,0.375)、(0.375,0.5)、(0.5,0.625)、(0.625,0.75)、(0.75,0.875)、(0.875,1)这些子区间，并分别对应于一个3bit符号000、001、010、011、100、101、110、111，接着分别映射到-7d、-5d、-3d、-d、d、3d、5d、7d幅度电平上。之后高斯随机数与幅度电平叠加(高斯噪声的方差由输入信噪比控制)，生成随机幅度r。通过与判定门限的比较判定r的符号值，然后与输入符号比较，如果不等则认为此符号传送错误。本实验假定进行10000次信号发送，计算发送错误的比例作为仿真误码率。另外计算对应不同信噪比情况下理论误码率的值，与上述实验进行对比验证。 -The simulation of multi-amplitude level signal bit error rate and the relationship between SNR, the system block diagram above. Assumption consider the magnitude of level 8, then according to the process you first need to use a random number generator in (0,1) uniform random number, then (0,1) interval is divided into uniform (0,0.125), (0.125 , 0.25), (0.25,0.375), (0.375,0.5), (0.5,0.625), (0.625,0.75), (0.75,0.875), (0.875,1) These sub-intervals, and corresponding to a symbol 3bit 000,001,010,011,100,101,110,111, and then are mapped to-7d,-5d,-3d,-d, d, 3d, 5d, 7d on the amplitude level. After the Gaussian random number with the amplitude level overlay (Gaussian noise of variance controlled by the input signal to noise ratio) to generate a random rate r. By comparison with the determined threshold value to determine the sign of r, and then compared with the input symbol, if the range is that this symbol transmission error. This study assumes that the signal sent 10000, send an error
Date : 2025-12-29 Size : 2kb User : ps
[Communication-Mobile] Spatial-correlation DL : 0: 入射角均匀分布时两种放置天线相关性（考虑有无互耦的影响）-Spatial correlation with uniform distribution of angular energy
Date : 2025-12-29 Size : 5kb User : 季榉
[Communication-Mobile] shizhizhen DL : 0: 两种均匀直线阵波束形成的matlab程序-Two uniform linear array beamforming matlab program
Date : 2025-12-29 Size : 1kb User : wangwei
[Communication-Mobile] HW1_Saman DL : 0: uniform distribution in hexagon
Date : 2025-12-29 Size : 1kb User : saman
[Communication-Mobile] drawploar DL : 0: 本程序实现对均匀直线阵列天线阵方向图的绘制，天线间隔为1/4波长，天线数量自拟，输入参数分别为入射角度及天线个数。-This procedure implements a uniform linear array antenna array pattern drawing, the antenna interval is 1/4 wavelength, the number of antennas self, the input parameters for the incidence angle and the number of antennas.
Date : 2025-12-29 Size : 18kb User : daviddy
[Communication-Mobile] repoet3-4 DL : 0: Even though the RAND functions can be useful for generating uniform random numbers, most of the time w ill need to model various non-uniform distributions, such as the Normal, Lognormal, Exponential, Gama, and others. In fact, the Uniform distribution arises in a very limited number of applications, so the chances are our worksheet models will rarely deal with this distribution-Even though the RAND functions can be useful for generating uniform random numbers, most of the time we will need to model various non-uniform distributions, such as the Normal, Lognormal, Exponential, Gama, and others. In fact, the Uniform distribution arises in a very limited number of applications, so the chances are our worksheet models will rarely deal with this distribution
Date : 2025-12-29 Size : 97kb User : basem
[Communication-Mobile] main DL : 0: 这是一个关于阵列信号处理的均匀圆阵下基于UCA-ESPRIT的二维DOA估计的MATLAB程序-This is the next uniform circular array array signal processing based on two-dimensional DOA UCA-ESPRIT estimates MATLAB program
Date : 2025-12-29 Size : 1kb User : 强
[Communication-Mobile] 数字调制 DL : 0: 数字通信中BPSK和DPSK调制以及PCM的均匀量化编码和A律13折近似编码的matlab例程(In digital communications, BPSK and DPSK modulation, and PCM uniform quantization coding and A law 87% off approximate encoding matlab routines)
Date : 2025-12-29 Size : 1kb User : Jiangbx
[Communication-Mobile] 波束形成_Matlab程序 DL : 0: 波束赋行 8阵元均匀线阵方向图如下，来波方向为0度，20log（dB）(beamforming The array of 8 element uniform linear array is as follows, the direction of wave is 0 degrees, 20log (dB))
Date : 2025-12-29 Size : 941kb User : panbei
[Communication-Mobile] TDCS收发端不一致仿真图 DL : 0: 仿真了在收发两端频谱环境不一致情况下变换域通信系统的误码率仿真(The BER of the transform domain communication system is simulated when the spectrum environment is not uniform)
Date : 2025-12-29 Size : 30kb User : 音动乐容

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