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Description: 扩频通信系统，包括直接序列扩频，PN序列产生，以及调频扩频-Spread spectrum communication system, including direct sequence spread spectrum, PN sequence generation, as well as spread spectrum frequency modulation
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Size: 7168 |
Author: 廖洪运 |
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Description: AT Commands for CDMA Wireless Modems
Reference Guide
Products: MTSMC-Cxx, MTMMC-Cxx, MTCBA-Cxx
PN S000294D-AT Commands for CDMA Wireless Modems
Reference Guide
Products: MTSMC-Cxx, MTMMC-Cxx, MTCBA-Cxx
PN S000294D
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Size: 826368 |
Author: Nomessds |
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Description: M序列与GOLD序列仿真对比得出幅频结果的对比图-M sequence with the sequence GOLD Simulation results obtained amplitude-frequency comparison chart
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Size: 16384 |
Author: 希罗 |
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Description: this program performs pn sequence generation, with the provision to change shift register sequences
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Size: 1024 |
Author: gayatri_mirajkar |
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Description: The .m file simulates a Spread-Spectrum Modulation Trx/Rcx system, in which, the phase of the pseudo-random sequence generated in the transmitter and used to encode the data stream is unknown a priory at the receiver.A parallel search strategy is employed to locally determine it in the place. It works as here: selecting the maximam-energy low-pass filtered signal of the set of all hypothesied despreaded ones using different hypothesized phases for the PN-sequence.The simulation can be growed in several ways including considering various types of noise and jammings or also designing better filters.
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Size: 3072 |
Author: Rafal |
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Description: 伪随机码或称PN码，是扩频通信中不可缺少的一种序列。扩频通信，简单的说来就是通过一组相关性很强的伪随机序列，使原有的信号按照伪随机序列的特性出现。从波形上看，原有信号完全淹没于随机的噪声中，达到隐藏信号和抗干扰的目的。接受方只要有相同的伪随机序列，就可以通过伪随机序列很强的相关性将信号还原出来。而m序列，是扩频系统中最长用的伪随机序列。下面的代码就是基于matlab的生成m序列的代码，通过改变初始多项式的值，就可以生成不同阶数的m序列。-Pseudo-random code or PN code, spread spectrum communication is indispensable to a sequence. Spread spectrum communication, a simple to say that the adoption of a group of highly related to pseudo-random sequence, so that the original signal in accordance with the characteristics of pseudo-random sequence there. From the wave point of view, the original signal completely submerged in the random noise to hide the purpose of signal and interference. As long as the recipient has the same pseudo-random sequence, the pseudo-random sequence can be a strong correlation to restore the signal out. And m sequence spread spectrum system is the longest of the pseudo-random sequence used. The following code is generated based on m sequences of matlab code, by changing the value of the initial polynomial, we can generate a different order of the m sequence.
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Size: 1024 |
Author: fortunewjh0217 |
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Description: FPGA实现pn发生器，Verilog代码实现，另带modlesim的仿真测试文件，很有价值。-FPGA realization of pn generator, Verilog code, and the other with the simulation test modlesim documents of great value.
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Size: 3072 |
Author: 胡佳 |
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Description: PN code Generator
PN code Generator-PN code Generator
PN code Generator
PN code Generator
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Size: 1024 |
Author: Nguyenhuuduc |
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Description: this PN generate in CDMA, this codes use to known about PN generate-this is PN generate in CDMA, this codes use to known about PN generate
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Size: 1024 |
Author: sony |
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Description: 用遗传算法估计伪随机码（PN序列），包含初始化，选择，交叉，变异-Is estimated by using genetic algorithms pseudo-random code (PN sequence), including initialization, selection, crossover and mutation
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Size: 3072 |
Author: defang |
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Description: PN序列生成函数, 测试代码. 带有一组生成多项式-failed to translate
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Size: 1024 |
Author: jx.liang |
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Description: Its the project report for CDMA PN code acquisition using Neural Networks.
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Size: 46080 |
Author: shifka |
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Description: cdma simuklation with differetn users , pn sequences and their characterstics with new codes and also how to simulate it in matlab with different cdma codes for different no of users in the system
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Size: 8192 |
Author: gaurav |
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Description: 一个完整的pn码捕获与跟踪的VHDL源码,并行匹配滤波器捕获,锁相环跟踪.-A complete pn Code Acquisition and Tracking of the VHDL source code, parallel matched filter to capture, phase-locked loop tracking.
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Size: 2048 |
Author: 王永俊 |
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Description: pn ofdm synchronization matlab
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Size: 23552 |
Author: huhu |
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Description: In this thesis a signal level simulator in uplink is implemented according to the physical layer specification of the IMT-2000 WCDMA system. The analytical WCDMA system through the use of linear algebra techniques is shown. Channel model is built on the classical understanding of fading, Doppler spread, delay spread, and incorporate additional concepts such as direction of arrival and antenna array geometry. PN sequence properties and generation are studied. Spreading and scrambling techniques are present. RAKE receiver and multiuser detection are described, and spatial processing in smart antenna are reviewed. A simulation tool in Matlab is developed in this work.
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Size: 562176 |
Author: mansoor |
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Description: PN code sequence generation
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Size: 1024 |
Author: raja |
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Description: PN结两端电压随温度变化，采用ADC0809采样的处理程序，送于LCD1602显示，采用18b20温度传感器的测温作为参考-PN junction voltage with temperature changes at both ends, using ADC0809 sample handling procedures, to send in the LCD1602 display, using 18b20 temperature sensor temperature as a reference
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Size: 4096 |
Author: 林昕 |
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Description: variable size PN sequence generator
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Size: 1024 |
Author: Tlich |
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Description: 带干扰的直接序列扩频通信系统,PN码由m序列产生器产生，经过高斯白噪声信道。在接收端接收到的信号包括“有用信号+高斯白噪声+干扰”，将接收信号进行解扩，判决，得到用户的信号检测结果，绘制不同的扩频增益（增益值为10，30，50）下，误比特率随信噪比Eb/N0的变化曲线。-the direct sequence spread spectrum with interference communication system
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Size: 9216 |
Author: ailj |
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