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Description: simulink simulation for pn codes performance
Platform: |
Size: 139264 |
Author: ahmed |
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Description: 扩频码序列的改进与实现 希望能对大家有用-Spreading code sequences to improve and hope that it would be useful to achieve
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Size: 108544 |
Author: 杨帆 |
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Description: pn序列用于信道估计的列子，很全面的源代码-Channel Estimation and Equalization based on PN sequence
Platform: |
Size: 153600 |
Author: huang |
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Description: 基于SIMULINK的PN码同步系统仿真研究-Based on the PN code synchronization system SIMULINK Simulation
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Size: 727040 |
Author: fangjingjing |
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Description: 设计一个有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。-Design of a direct sequence spread spectrum interference system, PN code generated by the m sequence generator, after white Gaussian noise channel. Receives the signal at the receiver, including " useful signal+ Gaussian white noise+ interference" , will receive the signal despreading, judgments, get the user' s signal test results, draw a different spreading gain (gain value of 10,30, 50), the BER curves with the signal to noise ratio Eb/N0.
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Size: 7168 |
Author: 皓月 |
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Description: 直接序列扩频通信系统建模与仿真 PN码序列产生代码（matlab)-PN code sequence generated code (matlab)
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Size: 1024 |
Author: viewstar |
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Description: 产生扩频所需的pn码， pn码在通信系统中占据了重要的位置，在即将到来的3G通信中比较重要
-Pn code needed to generate spread spectrum
Platform: |
Size: 71680 |
Author: zhongtao |
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Description: 此代码是cdma2000基带信号处理过程中pn长码的产生算法程序。-This code is cdma2000 baseband signal processing algorithms pn long code generation process.
Platform: |
Size: 1024 |
Author: 齐赞 |
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Description: 基于matlab采用匹配滤波器实现的PN码捕获与跟踪，对学习PN码捕获的朋友很有帮助-Matlab using matched filter based on the PN code acquisition and tracking, PN code acquisition in learning helpful friend
Platform: |
Size: 2181120 |
Author: 小黄 |
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Description: PN code generation for any length of generator polynomial
Platform: |
Size: 1024 |
Author: bharat |
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Description: MODULATOR This function modulate the forward Channel chips.
Block Diagram
InChips -> [Walsh] -> [Spreading] -> [Output Tx Shaping Filter]
Inputs: chips - chips sequence to transmit
MFType - Shaping Filter type (default - Rise Cosine)
Walsh - Used row of Walsh matrix
Outputs: TxOut - Transmitted signal (analog signal)
PN - PN sequence for I/Q Channels
MF - mathed filter taps (Shaping Filter)
Platform: |
Size: 2048 |
Author: Roshdy |
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Description: 语言：VHDL
功能：该PN4序列的特点为将一个4位序列的前两位取异或，再让序列左移一位，用异或的结果作为序列的最后一位。序列周期是15，即15位伪随机序列。其中包括序列的产生模块和检测模块。对于误码检测，首先捕获相位。然后，规定测试的码的总个数，统计这些码中有多少个不能满足PN序列特点的，用计数器统计个数。如果发现误码过多，可能是相位失调，重新捕获相位，再进行误码检测。
仿真工具：modelsim
综合工具：quartus -Language: VHDL
function: the sequence characteristics of the PN4 a 4-bit sequence of the first two to take different or, let a sequence of left, with the result as a sequence of different or the last one. Sequence cycle is 15, or 15-bit pseudo-random sequence. Including sequence generation module and detection module. For error detection, the first capture phase. Then, provided the total number of test code, statistics, the number of these codes can not meet the characteristics of PN sequences, with the number of counter statistics. If you find too many errors, it may be the phase offset, re-acquisition phase, then the error detection. Simulation tools: modelsim
synthesis tool: quartus II
Platform: |
Size: 4096 |
Author: huangjiaju |
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Description: 文章中主要阐述了PN码的捕获，并对以前的各种捕获方法进行了改进。得出了基于FFT的快速捕获算法！-Abstract-A FFT-based parallel acquisition algorithm for Direct
Sequence/Spread Spectrum radio navigation system is studied to
solve long PN code acquisition using serial method. Frequency
domain analysis of FFT to acquire signal is applied in this paper
and state transfer function is used to derive the expression of
average acquisition time.
Platform: |
Size: 553984 |
Author: 严鹏涛 |
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Description: 基于恒虚警准则的伪码并行捕获门限设置CFAR-based PN code parallel acquisition criteria set threshold-CFAR-based PN code parallel acquisition criteria set threshold
Platform: |
Size: 69632 |
Author: kamang123 |
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Description: 本文算法是将24 位真彩图的亮度分量分块
DCT ,然后利用DCT 量化系数的奇偶特性嵌入8
位灰度水印图,并通过PN 序列加密来保证水印的
安全性。算法中,将灰度图像转换为二进制数据
流,置乱后扩频调制,隐藏在宿主DCT 系数量化值
中,提取时不需要宿主信号,实现水印信号的盲提
取。-This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction.
Platform: |
Size: 284672 |
Author: 王秀梅 |
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Description: pn序列多普勒估计
pn序列多普勒扩展
抗干扰技术应用能够
simulink的仿真分析-pn_dopple_estimation
pn_dopple_despreading
anti_interference
simulink system
Platform: |
Size: 2182144 |
Author: isa |
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Description: This the Profinet CBA Architecture Description
and Specification.-This is the Profinet CBA Architecture Description
and Specification.
Platform: |
Size: 3829760 |
Author: richie |
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Description: PN码同步仿真输入 PN码同步仿真模块 PN码同步仿真输出-PN code synchronization simulation input PN code synchronization simulation module simulation output PN code synchronization
Platform: |
Size: 2182144 |
Author: 张天馨 |
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Description: generation of pn sequences using matlab
Platform: |
Size: 1024 |
Author: Deepak Sheoran |
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Description: 扩频通信中的捕获问题，用GOLD码进行扩频， PN码相位捕获，利用捕获的相位，接收机产生偏移的GOLD码，进行解扩和误码率计算-Capture the problem in spread spectrum communication, spread spectrum codes with GOLD, PN code phase acquisition, the use of capture phase, the receiver generates offset GOLD code, for despreading and bit error rate
Platform: |
Size: 2048 |
Author: 孙伟 |
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