登录

最新会员 最新下载

成为了本站VIP会员

05月13日 14:43

成为了本站VIP会员

05月13日 10:19

成为了本站VIP会员

05月12日 14:03

成为了本站VIP会员

05月10日 21:42

成为了本站VIP会员

05月10日 16:59

成为了本站VIP会员

05月09日 16:51
已选条件
  1. 编程语言:matlab
  2. 代码类别:通讯编程文档
  3. 发布时间:近三天
全部撤销
编程语言 更多 收起
代码类别 更多 收起
发布时间
更多选项

1. Matlab-STK

  Matlab与STK连接函数库,可以实现Matlab与STK连接(Matlab connection with the STK library)

223
下载
170
浏览
2011-05-07发布

2. Cognitive-Radio

说明:  利用通信系统中调制信号的循环平稳特性,对频谱空洞进行检测,提升频谱感知技术在低信噪比下的性能。实验结果表明:与传统能量检测方法相比,采用循环特征检测方法改善了认知无线电中频谱空洞的检测能力。(Based on the cyclostationarity of modulation signals, spectrum hole is detected, aiming at the improve- ment of the performance of spectrum sensing in low SNR situation. The results show that comparing with the tra- ditional energy detection technique, cyclostationarity-based spectrum sensing technique has greatly improved the detective ability in cognitive radio.)

3
下载
175
浏览
2011-03-22发布

3. boyilun

  利用博弈论对认知无线电的新研究算法,希望对大家有帮助(Using game theory, a new study on cognitive radio algorithms, we want to help)

144
下载
156
浏览
2011-01-24发布

4. nakagami

  Nakagami信道仿真,看后能够用三种方法仿真出Nakagami信道~可以向我要源代码(Nakagami channel simulation, three ways to look after the simulation the Nakagami channel ~ I want the source code can)

176
下载
150
浏览
2010-11-06发布

5. 4

说明:  :载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2 种算法,即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本 思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小,精度不高,而基于训练序列 的算法有较高的估计精度,但降纸了系统传输效率。(Abstract:Carrier frequency ofset is one of the key problems in OFDM system.Two foundational methods 。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency ofset are analyzed.Then it discusses their basic thoughts。implementing methods and simulation resuits. Finally。merits and demerits of every algorithm are supposed.It concludes that the cycling prefix— based algorithm has less complexity and less precision。and that the training sequence—based algorithm has better estimation performance at the cost of transmission efficiency.)

1
下载
145
浏览
2010-05-18发布

6. CHENGXU

说明:  实现图像游程编码的MATLAB程序,对二值图像压缩效果明显。(RLC)

1
下载
139
浏览
2010-05-01发布

7. lijing

说明:  基于Simulink的DPSK的通信系统仿真 Simulink 是MATLAB提供的实现动态系统建模和仿真的一个软件包,它让用户把精力从编程转向模型的构造,为用户省去了许多重复的代码编写工作;Simulink 的每个模块对用户而言都是透明的,用户只须知道模块的输入、输出以及模块的功能,而不必管模块内部是怎么实现的,于是留给用户的事情就是如何利用这些模块来建立模型以完成自己的仿真任务;至于Simulink 的各个模块在运行时是如何执行,时间是如何采样,事件是如何驱动等细节性问题,用户可以不去关心,正是由于Simulink 具有这些特点,所以它被广泛的应用在通信仿真中,利用Simulink 强大的工具箱和其建模的优势建立了常用的DPCM数字电话通信系统仿真模型,对该通信系统进行了模型构建、系统设计、仿真演示、结果显示以及综合性能分析,而且该分析方法同样可推广到其它的通信系统,具有普遍意义。(Simulink-based simulation of Simulink DPSK communication system is provided by MATLAB dynamic system modeling and simulation of a software package that allows users to shift attention from the programming model of the structure, the user save a lot of repetitive coding work Simulink Each module is transparent to the user, the user need only know the module s input, output and functional modules, rather than how the realization of the internal control module, and then left to the user to do is how to use these modules to build model to fulfill its a simulation tasks as Simulink s Ge Ge module at run time how Zhi Xing, Shi Jian yes how to sample, events are the details of how to drive and so on Xing problem, users can not care, Zheng Shi as Simulink those characteristics, so Ta is widely used in communication simulation, using Simulink toolbox and its powerful modeling advantage of the establishment of a common DPCM Digital telephone communication system simulation model, the communica)

2
下载
184
浏览
2010-04-24发布

8. Solving

说明:  求解双层规划问题常用的算法有极点算法、直接搜索法、下降法和非数值优化方法(如模拟退火算法、遗传算法等),遗传算法的求解思路是:首先对上层的决策变量编码,代人下层规划模型,通过求解下层模型的决策变量值,代入上层模型计算适应度值,然后进行交叉、变异、选择操作,最后求出最优解。(Solving Bilevel Programming Problems with pole algorithm commonly used algorithms, direct search method, descent and non-numerical optimization methods (such as simulated annealing, genetic algorithms, etc.), genetic algorithm for solving approaches: the first on the top of the decision variable coding, on behalf of the were lower programming model, by solving the lower model of decision variables values into the upper model on behalf of the fitness value, and then crossover and mutation, select Options, and finally get the best solution.)

2
下载
177
浏览
2010-04-07发布

9. chengxu

说明:  小区同频干扰源码。建立基站、设置功率传输比...很有用的。(co-channel interference in matlab. Include establishing stations and power transmission ratio.)

0
下载
156
浏览
2010-03-29发布

10. gmsk

说明:  :为了论证高斯最小频移键控(GMSK)信号在时域和频域的相互关系,分析了GMSK信 号调制原理和滤波器传递函数,建立了GMSK调制和解调模型。(: In order to demonstrate Gaussian Minimum Shift Keying (GMSK) signal in time domain and frequency domain, the relationship between the analysis of GMSK signal modulation principle and the filter transfer function established model for GMSK modulation and demodulation.)

2
下载
159
浏览
2010-03-16发布

11. WSN-matlab-simulation

  This is wireless sensor network simulation source

681
下载
141
浏览
2010-03-08发布

12. colea444

  This includes how to protect the speaker using matlab functions.

4
下载
134
浏览
2010-03-03发布

13. ccc

  随机过程仿真必备,伪随机序列的Matlab实现与分析.kdh(Stochastic process simulation necessary, pseudo-random sequence of Matlab Implementation and Analysis. Kdh)

14
下载
137
浏览
2010-02-18发布

14. extended_reciever

  Bit Error Rate analysis of an Extended Receiver for Rectangular PAM. The performance of a digital communication system in the presence of additive white Gaussian noise (AWGN) can be assessed by the measurement of the bit error rate (BER). The Simulink model provided is a rectangular polar pulse amplitude modulation (PAM) baseband system with an AWGN channel and an extended sample and hold receiver with a low pass filter. An extended receiver has an odd number of sample and hold circuits. What remains to be answered is if such a receiver would provide a more desirable BER than that of a simple S/H receiver.

31
下载
143
浏览
2010-02-01发布

15. SSDA_080721

  SSDA算法是一种快速图像匹配算法,希望对大家有所帮助!(SSDA algorithm is a fast image matching algorithm, we want to help!)

140
下载
156
浏览
2010-01-13发布

16. pipeilvbo

  匹配滤波器的实现。主要是通过fft变化使输出自相关最大,在通过滤波器。(Matched filter implementation. Mainly through changes in the output autocorrelation fft the largest through the filter.)

207
下载
162
浏览
2010-01-03发布

17. MATLABsimulationincommunication

  MATLAB仿真软件在通信系统仿真中的应用(MATLAB simulation software in the communication system simulation)

5
下载
154
浏览
2009-11-24发布

18. shaping_filter_and_dsp_realize_theory

  基带脉冲成形数字滤波器的MATLAB设计与DSP上的实现(shaping filter and dsp realize theory )

49
下载
138
浏览
2009-11-22发布

20. TD_DCA

  基于matlab的TD-SCDMA动态信道分配(Matlab-based TD-SCDMA, dynamic channel allocation)

163
下载
136
浏览
2009-11-01发布