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Description: 改变不同的扩频增益以及正弦干扰时的误码率仿真-change the spreading gain sinusoidal interference and the BER simulation
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Size: 2119 |
Author: na |
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Description: Simple spreading code allocation scheme for downlink MC-CDMA
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Size: 240750 |
Author: inonunder@yahoo.com.tw |
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Description: 两个Nokia研究人员写的W-CDMA的仿真代码。
包含信道编码，交织，速率匹配，调制，扩频，信道模型，RACK接收机和相应的解码程序
-two researchers write the W-CDMA simulation code. Includes channel coding, interleaving, matching rate, modulation, spreading, Channel model, RCK receiver decoder and the corresponding procedures
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Size: 302080 |
Author: 耿毅 |
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Description: 改变不同的扩频增益以及正弦干扰时的误码率仿真-change the spreading gain sinusoidal interference and the BER simulation
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Size: 2048 |
Author: na |
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Description: 两个Nokia研究人员写的W-CDMA的仿真过程的整个代码。C code
包含信道编码，交织，速率匹配，调制，扩频，信道模型，RACK接收机和相应的解码程序。
本源码对整个系统进行了仿真，非常具有参考价值，对研究WCDMA系统的任何模块都有帮助-two researchers write the W-CDMA simulation of the entire code. C code includes channel coding, interleaving, rate matching, modulation, spreading, Channel model, RACK receiver decoder and the corresponding procedures. The source of the entire system for simulation, the very reference value, Study on the WCDMA system will help any module
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Size: 499712 |
Author: |
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Description: 用matlab simulink写的W-CDMA的仿真过程的整个代码。
包含信道编码，交织，速率匹配，调制，扩频，信道模型，RACK接收机和相应的解码程序。
本源码对整个系统进行了仿真，非常具有参考价值，对研究WCDMA系统的任何模块都有帮助-using Matlab Simulink write W-CDMA simulation of the entire code. Includes channel coding, interleaving, rate matching, modulation, spreading, Channel model, RACK receiver decoder and the corresponding procedures. The source of the entire system for simulation, the very reference value, Study on the WCDMA system will help any module
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Size: 1209344 |
Author: |
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Description: cdma_codes产生扩频码随机、H、需要的朋友可以下来-cdma_codes generated random spreading codes, H, the need to see friends down
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Size: 1024 |
Author: 林宇 |
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Description: 给出了一种用时空混沌系统产生 系统的扩频序列的方法, 对其中驱动序列的选择进行了讨论, 并分CDMA析了时空混沌扩频系统的特殊耦合同步特性, 最后给出了一种 通信系统模型
-This paper presents a system with spatiotemporal chaos system method of spreading sequences, which drive the choice of sequence is discussed, and sub-CDMA spread-spectrum analysis of the spatiotemporal chaos of the special coupling system synchronization features, the final paper, a Communication System Model
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Size: 251904 |
Author: wang |
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Description: cdma系统matlab仿真，在两个用户的背景下采用了直接扩频码实现扩频解扩，bpsk调制解调，程序已经运行过，没有问题！-cdma system matlab simulation, in the context of two users using a direct spread spectrum spreading codes realize despreading, bpsk modem, the program has been run before, no problem!
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Size: 2048 |
Author: 陈超 |
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Description: 该程序可以实现直扩通信系统中扩频码的生成，可以通过键入本原多项式直接输出生成的扩频码，方便灵活。-The program can be achieved in DS spread spectrum communication system to generate code, you can direct the output type primitive polynomial generated spreading codes, convenient and flexible.
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Size: 12288 |
Author: qingyuanbao |
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Description: 简单的单用户ds-cdma系统仿真，包含六个m文件，m序列作为扩频码。-Simple single-user ds-cdma system simulation, including six m file, m sequences as spreading codes.
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Size: 3072 |
Author: weiwei |
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Description: In 揚erformance of multi-carrier DS CDMA Systems?we apply a multi-carrier signaling technique to a direct-sequence CDMA system, where a data sequence multiplied by a spreading sequence modulates multiple carriers, rather than a single carrier. The receiver provides a correlator for each carrier, and the outputs of the correlators are combined with a maximal-ratio combiner. This type of signaling has the desirable properties of exhibiting a narrowband interference suppression effect, along with robustness to fading, without requiring the use of either an explicit RAKE structure or an interference suppression filter.
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Size: 357376 |
Author: ganga |
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Description: this project realted tothe multi user detection of ds cdma signals.comparision is done for different spreading sequences
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Size: 575488 |
Author: subbu |
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Description: it is a code in MATLAB for calculation of bit error ratio vs signal to noise ratio , for multiuser code division multiple access .. usually in any communication system calculation of BER is very important to know the performance of system .. so in this program multiuser CDMA system is used ,, spreading is done using HADAMARD matrix .. or WALSH code .. and BER vs SIGNAL to NOISE ratio graph is computed-it is a code in MATLAB for calculation of bit error ratio vs signal to noise ratio , for multiuser code division multiple access .. usually in any communication system calculation of BER is very important to know the performance of system .. so in this program multiuser CDMA system is used ,, spreading is done using HADAMARD matrix .. or WALSH code .. and BER vs SIGNAL to NOISE ratio graph is computed
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Size: 2048 |
Author: hassan |
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Description: This program is used to analyze the effects of the spreading factor on the performance of MC-CDMA system.
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Size: 2048 |
Author: amare |
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Description: 本文应用simulink建立了常用扩频码序列m序列和Gold序列仿真模型，模拟仿真数据与原理分析高度吻合，证明应用simulink进行常用扩频码序列仿真实验的可行性。-In this paper, simulink establish a common spreading code sequence of m sequences and Gold sequences simulation model, simulation data highly consistent with the principles of analysis, proved to be common spreading code sequences simulink simulation is feasible.
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Size: 297984 |
Author: 小霞 |
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Description: CDMA扩频与解扩中的基带信号处理过程仿真 源码-CDMA spreading and despreading the baseband signal processing in the process simulation source
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Size: 95232 |
Author: iishellx |
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Description: This paper studied the carrier-frequency offset effect on the performance of asynchronous multicarrier direct-sequence code-division multiple-access (MC-DS-CDMA) systems with aperiodic random spreading and correlated Rayleigh fading. This paper also compared the performance of MC-CDMA systems using the optimum combining technique with that of different combining filters.
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Size: 396288 |
Author: sh3e |
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Description: 从多普勒载波频偏对CDMA接收
信号的影响入手，提出了分段匹配滤波器和循环累加码捕获环路相结合的方法进
行扩频码的捕获，并对该方法的性能进行了分析和仿真。
-Doppler frequency offset from the carrier signal on the CDMA receiver to start the impact of proposed sub-cycle accumulation matched filter code acquisition loop and a combination of methods of spreading codes to capture, and the method of performance analysis and simulation.
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Size: 1025024 |
Author: 赵亮 |
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Description: 实现扩频系统。信源产生，扩频，基带成型后加噪声，解扩，低通。判决-Achieve spread spectrum system. Source production, spreading, baseband shaping, add noise, despreading, low-pass. Judgment
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Size: 1024 |
Author: 6827566 |
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